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EXPLORE NIMZOA'S TOOLKIT

Free Online Tools

Explore Nimzoa's free online tools for PDFs, images, calculators, text, file conversions, development, and everyday digital tasks. Choose a tool and get started.

Image ToolsJPG to PNG ConverterConvert JPG and JPEG images to PNG online for free. Fast, private, browser-based conversion with no signup or server uploads.→
Image ToolsCompress ImagesCompress JPG, JPEG, PNG, and WebP images online for free. Reduce image file sizes, process multiple photos, and download your compressed results.→
CalculatorsDiscount CalculatorCalculate percentage discounts, sale prices, and savings. Find the original price or combine two discounts using this free online calculator.→
Developer ToolsJSON Formatter & ValidatorFormat, beautify, validate and minify JSON online. Check syntax, choose indentation and copy or download the result.→
Utility ToolsQR Code GeneratorCreate free QR codes for website links, text, Wi-Fi, email, SMS, and phone numbers. Customize colors and download PNG or SVG files.→
Random & Decision ToolsRandom Number GeneratorGenerate unbiased whole numbers across a custom range, with unique bulk picks and CSV export.→
SEO & MarketingUTM BuilderCreate trackable campaign URLs with Nimzoa's free UTM Builder. Generate UTM links for email, social media, paid ads, and Google Analytics 4 without manually editing URL parameters.→
Text ToolsWord & Character CounterCount words, characters, sentences, and paragraphs instantly. Check reading time, speaking time, and keyword density in your browser.→
Text ToolsCase ConverterConvert text to uppercase, lowercase, sentence case, capitalized words, invert case or alternating case. Copy the result instantly.→
Developer ToolsColor Picker / HEX ConverterPick a color, find its HEX, RGB, HSL, HSV and approximate CMYK values, explore related palettes and check text contrast.→
Random & Decision ToolsDice RollerRoll D4 to D100 dice with modifiers, individual outcomes and a local roll history.→
CalculatorsMortgage CalculatorEstimate monthly mortgage payments, principal and interest, down payments and optional housing costs. Explore your loan's amortization.→
Utility ToolsPassword GeneratorCreate random passwords with your chosen length and characters directly in your browser.→
Image ToolsResize ImageResize JPG, PNG, and WebP images online by pixels or percentage. Preserve proportions, adjust framing, and download your resized image.→
SEO & MarketingRobots.txt GeneratorCreate a robots.txt file with crawler-specific rules, Allow/Disallow paths and sitemap URLs. Preview, copy or download it for free.→
Developer ToolsBase64 Encoder / DecoderEncode text to Base64 or decode Base64 to readable UTF-8. Supports Unicode text, standard Base64 and Base64URL in your browser.→
Text ToolsLorem Ipsum GeneratorGenerate Lorem Ipsum dummy text by paragraphs, sentences, or exact word count. Copy or download placeholder text for your designs.→
CalculatorsPercentage CalculatorCalculate percentages, find percentage changes, and increase or decrease numbers with free online percentage formulas.→
Random & Decision ToolsRandom Name PickerPick one or several names fairly, remove duplicates, avoid repeats and view recent picks.→
Photo & Signature ToolsSignature ResizerResize signature images online in JPG, PNG or WebP. Set custom pixel dimensions, keep proportions and optionally reduce file size.→
Utility ToolsUnit ConverterConvert length, weight, temperature, area, volume, speed, time, and digital storage units instantly with a free online unit converter.→
Text ToolsText RepeaterRepeat text up to 100,000 times with precise modes, numbering and safe browser-only exports.→
CalculatorsAge CalculatorCalculate your exact age from your date of birth in years, months, and days. Check total days, weeks, and your next birthday with this free online age calculator.→
Random & Decision ToolsCoin Flip SimulatorFlip a coin once or in batches with local Heads/Tails counts, percentages and history.→
File ConvertersJPG to PDFConvert JPG and JPEG images to PDF online for free. Add multiple images, create a PDF document and download it directly from your browser.→
PDF ToolsPDF EditorEdit PDFs online for free. Add text, images, drawings, shapes and signatures, organize pages, and export your PDF directly from your browser.→
Developer ToolsUUID GeneratorGenerate up to 500 random UUID v4 identifiers in your browser. Choose uppercase or lowercase output, remove hyphens, and copy or download your results.→
CalculatorsDate Difference CalculatorCalculate the days between two dates for free. See calendar years, months, days, completed weeks, and total days in your browser.→
PDF ToolsMerge PDFMerge PDF files online for free. Combine up to 30 PDFs into one document, arrange the file order, and download the result directly to your browser.→
Random & Decision ToolsWheel SpinnerSpin a customizable wheel for equally weighted options with local history and remove-winner mode.→
PDF ToolsImages to PDFConvert JPG, PNG and WebP images to PDF online for free. Combine up to 20 images into one PDF, arrange their order, and customize page size, orientation and margins.→
CalculatorsProfit Margin CalculatorCalculate gross profit, profit margin, and markup instantly. Find the selling price you need for a target margin or markup with this free online calculator.→
PDF ToolsSplit PDFSplit PDF files online for free. Extract selected pages into one PDF or save individual pages as separate PDF files directly in your browser.→
CalculatorsCompound Interest CalculatorCalculate compound interest online for free. Estimate savings and investment growth with monthly or annual contributions, flexible compounding, and yearly results.→
PDF ToolsCompress PDFCompress PDF online for free. Reduce PDF file size with a target size setting and two compression modes, directly in your browser, without uploading your document.→
Image ToolsCrop ImageCrop JPG, PNG, and WebP images online for free. Use exact pixel dimensions, aspect ratios, rotation, flipping, and custom export options.→
PDF ToolsPDF to JPGConvert PDF to JPG online for free. Select individual pages or page ranges, choose JPG quality, and download images privately in your browser.→
PDF ToolsPDF to PNGConvert selected PDF pages into clear PNG images locally in your browser.→
CalculatorsInvestment CalculatorEstimate future investment growth, monthly or annual contributions, total gains, and ROI with Nimzoa's free online Investment Calculator.→
Image ToolsPNG to JPGConvert PNG to JPG or JPEG online for free. Batch convert up to 30 PNG images, adjust JPG quality, and choose a background color for transparent areas.→
CalculatorsLoan / EMI CalculatorFree EMI calculator and loan calculator to estimate monthly payments, total interest, processing fees, and loan repayment schedules.→
Developer ToolsURL Encoder / DecoderEncode or decode URLs and URL components online for free. Convert spaces, special characters, and Unicode text instantly using browser-based URL encoding and decoding, with no account or uploads required.→
File ConvertersWebP to JPGConvert WebP to JPG for free online. Batch-convert up to 30 images, adjust JPG quality, choose transparent backgrounds, and download JPGs privately in your browser.→
CalculatorsBMI CalculatorCalculate your Body Mass Index (BMI) free online using height and weight. Get an adult BMI category, visual BMI chart, healthy-weight reference range, BMI Prime, and Ponderal Index.→
Developer ToolsHTML FormatterFormat and beautify HTML code online for free. Organize nested tags with 2-space, 4-space, or tab indentation and copy readable HTML instantly. No uploads or signup required.→
PDF ToolsPDF to TextFree PDF to Text converter to extract selectable text from PDF files online. Copy PDF text or download a UTF-8 TXT file privately in your browser, with no uploads or signup.→
CalculatorsVAT CalculatorAdd or extract VAT with discounts, quantities, mixed-rate items, currency rounding and CSV export.→
Developer ToolsMarkdown to HTML ConverterConvert Markdown to HTML online for free with a live preview. Supports GitHub Flavored Markdown, tables, task lists, and code blocks. Copy or download sanitized HTML directly in your browser.→
Developer ToolsCSS MinifierMinify CSS online for free. Remove unnecessary whitespace, choose whether to keep or remove comments, compare file sizes, and copy or download compact CSS directly in your browser.→
PDF ToolsDelete PDF PagesRemove unwanted PDF pages online for free. Select pages visually or enter page numbers and ranges, then download a new PDF. Private, browser-based processing with no uploads.→
CalculatorsGST CalculatorAdd or extract GST with discounts, itemized rates and an optional India CGST/SGST or IGST breakdown.→
Developer ToolsRegex TesterTest regular expressions online for free. Highlight regex matches, inspect capture groups, try JavaScript flags, and preview replacements privately in your browser.→
Developer ToolsSQL FormatterFree online SQL Formatter and Beautifier to format SQL queries with customizable indentation, keyword capitalization, and multiple SQL dialects. Clean up SQL code instantly in your browser.→
Developer ToolsJavaScript MinifierMinify JavaScript online for free. Remove unnecessary whitespace, choose how comments are handled, preserve license notices, compare UTF-8 sizes, and download compact JS code privately in your browser.→
PDF ToolsRotate PDFRotate PDF pages online for free. Turn individual, selected, or all pages 90° or 180°, preview changes, and download a corrected PDF without uploading your file.→
CalculatorsSales Tax CalculatorEstimate inclusive or exclusive sales tax with U.S. state/local components, exemptions, mixed items and CSV export.→
PDF ToolsAdd Page Numbers to PDFAdd page numbers to PDF online for free. Choose a page range, starting number, format, position, font size, and color. Preview and download without uploading your file.→
CalculatorsMarkup CalculatorCompare markup and profit margin, reverse-price targets, discounts and weighted multi-product profitability.→
Developer ToolsTimestamp ConverterConverts Unix timestamps to readable dates and dates to Unix timestamps. Supports epoch seconds, milliseconds, UTC, and browser-local time. Free and browser based.→
CalculatorsNet Profit CalculatorCalculate gross, operating and net profit with detailed expenses, scenarios and break-even estimates.→
CalculatorsSimple Interest CalculatorCalculate and reverse simple interest using dates, day-count conventions, comparison and schedules.→
CalculatorsWorking Capital CalculatorItemize current assets and liabilities, compare liquidity ratios and estimate the cash conversion cycle.→
CalculatorsDepreciation CalculatorCompare straight-line, declining-balance and SYD depreciation with reconciled schedules.→
Image ToolsImage to Base64Encode JPG, PNG, WebP or GIF to Base64 and a Data URL privately in your browser.→
CalculatorsROI CalculatorCalculate total and annualized ROI with additional costs and clear profit or loss.→
CalculatorsAspect Ratio CalculatorSimplify width and height ratios, fill missing dimensions and scale proportionally.→
Image ToolsBase64 to ImageValidate, preview and download a decoded JPG, PNG, WebP or GIF from Base64 or a Data URL.→
CalculatorsSalary to Hourly CalculatorConvert annual, monthly, weekly or biweekly gross salary into effective hourly pay.→
CalculatorsHourly to Salary CalculatorConvert an hourly rate into gross salary equivalents with optional overtime.→
CalculatorsCPM CalculatorCalculate ad CPM, total campaign cost or estimated impressions with clear formulas.→
Image ToolsJPG to WebPConvert JPG/JPEG to WebP with editable quality, previews, sizing and local download.→
CalculatorsSpeed Distance Time CalculatorSolve speed, distance or travel time with kilometers, miles and metric speed units.→
Image ToolsPNG to WebPConvert PNG to WebP locally, preserving transparency with quality, previews and download.→
CalculatorsPythagorean Theorem CalculatorSolve a missing right-triangle leg or hypotenuse, with area, perimeter and angles.→
CalculatorsOhm's Law CalculatorSolve voltage, current, resistance and power from any two known electrical values.→
CalculatorsHours and Minutes CalculatorAdd or subtract durations and convert between time, decimal hours and total minutes.→
Image ToolsWebP to PNGConvert a WebP to PNG locally, preserving transparency and dimensions with honest size comparison.→
CalculatorsRental Yield CalculatorCompare gross and net rental yield using rent, purchase price and property costs.→
Developer ToolsCSV to JSONConvert quoted CSV and multiline records to JSON objects or arrays, keeping cell values as strings.→
CalculatorsRent Proration CalculatorEstimate move-in or move-out rent using calendar days or a fixed 30-day method.→
CalculatorsCap Rate CalculatorEstimate capitalization rate, NOI or property value from annual income and expenses.→
Developer ToolsJSON to CSVFlatten, reorder and safely export JSON objects or arrays to CSV with configurable columns and delimiter.→
CalculatorsTime Duration CalculatorFind elapsed time between dates or overnight times, with optional break deduction.→
CalculatorsInflation CalculatorEstimate hypothetical future or present purchasing power and reverse annual inflation rates.→
Developer ToolsJWT DecoderDecode a JWT header and payload locally, inspect clock claims and keep token content private.→
CalculatorsWork Hours CalculatorTotal Monday–Sunday shifts with overnight clock times, unpaid breaks and optional gross pay.→
CalculatorsArea CalculatorFind the area of seven common shapes and convert metric or imperial square units.→
CalculatorsVolume CalculatorFind six solid-shape volumes and convert cubic units, liters and US gallons.→
CalculatorsSavings CalculatorProject savings growth or solve a required monthly or yearly contribution for a goal.→
CalculatorsWorking Days CalculatorCount working and nonworking days across a date range with custom workweeks and holidays.→
CalculatorsBusiness Days CalculatorAdd or subtract business days from a start date with custom weekends and holidays.→
CalculatorsVoltage Drop CalculatorEstimate copper or aluminum two-wire resistive cable voltage drop and load voltage.→
Text ToolsRemove Line BreaksJoin lines with spaces, no spaces or paragraph preservation and copy or download the result.→
Text ToolsSentence CounterEstimate live sentences, words, Unicode characters, paragraphs and average words per sentence.→
Image ToolsImage Grayscale ConverterAdjust grayscale intensity for JPG, PNG and WebP and export locally in your preferred image format.→
Image ToolsImage Rotate & FlipCombine quarter-turn rotations and horizontal or vertical flips for JPG, PNG and WebP images.→
Developer ToolsCSV ViewerInspect, search and sort local CSV in a responsive table, then export filtered spreadsheet-safe CSV.→
Developer ToolsMarkdown PreviewerRead a safe live Markdown preview or raw source, with local file opening and text counts.→
SEO & MarketingXML Sitemap GeneratorGenerate sitemap.xml from manual website URLs with validated dates, optional hints and XML escaping.→
SEO & MarketingSchema Markup GeneratorGenerate Schema.org JSON-LD markup online for free. Create structured data for Organization, LocalBusiness, Person, Product, Article, BreadcrumbList, and FAQPage using guided fields, then preview, copy, or download your code.→
PDF ToolsPDF Page ReorderReorder, rotate and delete PDF pages with thumbnails, then download a verified document.→
PDF ToolsPDF WatermarkApply a configurable text watermark to selected PDF pages with an actual-page preview.→
Utility ToolsReceipt GeneratorCreate professional receipts online for free. Add business and customer details, itemized prices, discounts, taxes and payment information, then download or print a PDF. No signup required.→
Utility ToolsQuotation GeneratorCreate unlimited professional business quotations for free. Add client details, itemized pricing, taxes, discounts, and signatures, then preview, print, or download your PDF. No signup required.→
Utility ToolsTyping Speed TestTest your typing speed online for free. Measure WPM, accuracy and errors with timed typing tests, live feedback, keyboard guidance and typing practice.→
CalculatorsAverage CalculatorCalculate count, sum, arithmetic mean, median, minimum, maximum and mode for numbers separated by commas, spaces or newlines.→
Text ToolsBinary to Text ConverterDecode whitespace-separated 8-bit binary bytes into UTF-8 text with strict validation for incomplete bytes and malformed Unicode sequences.→
Text ToolsText to Binary ConverterEncode Unicode text into UTF-8 bytes displayed as space-separated 8-bit binary values, then copy the result privately in your browser.→
CalculatorsBMR CalculatorEstimate adult basal metabolic rate in kcal/day with the Mifflin–St Jeor equation using metric or imperial height and weight.→
CalculatorsConcrete CalculatorEstimate concrete for slabs, rectangular footings and cylindrical columns in cubic meters, feet and yards, with optional quantity and waste allowance.→
Developer ToolsXML Formatter & ValidatorFormat, validate and conservatively minify XML locally, preserving text whitespace, namespaces, comments and CDATA. Copy or download XML without uploads.→
Developer ToolsDiff CheckerCompare two texts locally with added, removed and changed lines. Use unified or side-by-side views, optional ignore rules and word highlighting.→
CalculatorsBody Fat CalculatorEstimate adult body-fat percentage with the published Relative Fat Mass (RFM) equation using height and waist. Metric or imperial, private and browser-local.→
CalculatorsAntilog CalculatorCalculate base-10, natural or custom-base antilogs with adjustable display precision, scientific notation and clear numerical range warnings.→
CalculatorsAPR CalculatorEstimate the annualized borrowing cost from loan payments and financing fees using a numerical cash-flow APR calculation.→
CalculatorsAuto Lease CalculatorEstimate vehicle lease payments from capitalized cost, residual value and money factor, with separate fees, tax treatments and optional excess-mileage costs.→
CalculatorsBAC CalculatorExplore a documented Widmark-style blood alcohol concentration estimate from body weight, beverage amounts and elapsed time. Educational use only.→
CalculatorsBinary CalculatorCalculate exact binary integer arithmetic with BigInt, quotient/remainder division, and optional fixed-width bitwise operations and shifts.→
CalculatorsBody Surface Area CalculatorEstimate body surface area with Mosteller, Du Bois or Haycock formulas. Use metric or imperial measurements and optionally compare all three estimates.→
CalculatorsBody Type CalculatorEstimate a common body-shape convention from bust/chest, waist and hip measurements, with transparent ratios and optional schematic illustration.→
CalculatorsBond CalculatorPrice a fixed-coupon bond from yield or solve yield to maturity from market price, with current yield and transparent cash-flow assumptions.→
CalculatorsBra Size CalculatorEstimate a starting bra band and cup from underbust and full-bust measurements using clearly labeled US, UK or EU sizing conventions.→
CalculatorsBTU CalculatorEstimate room heating or cooling capacity in BTU/hour and kW with explicit dimensions, insulation, temperature and optional internal-gain assumptions.→
CalculatorsCalorie CalculatorEstimate adult maintenance calories, resting expenditure and guarded goal intake with Mifflin, revised Harris–Benedict or Katch–McArdle equations.→
CalculatorsCalories Burned CalculatorEstimate activity energy from referenced MET values, body weight and duration, with clear gross/net totals and optional multi-activity sessions.→
CalculatorsCarbohydrate CalculatorConvert daily calories and a chosen carbohydrate percentage into grams, or estimate maintenance energy with shared adult equations and optional meal allocation.→
CalculatorsCD CalculatorEstimate certificate-of-deposit maturity value, interest and APY, with optional illustrative taxes, early-withdrawal penalties and two-offer comparison.→
CalculatorsCircumference CalculatorFind circumference, radius, diameter and area from one circle measurement. Get automatic results, unit conversion, formulas and a labeled diagram.→
CalculatorsConception CalculatorEstimate a fertilization dating anchor from LMP, due date, ultrasound, IVF transfer or a known date, with clear assumptions and private browser-local calculations.→
CalculatorsDay CounterCount business days or add/subtract calendar and business days, with custom weekends, one-time and recurring holidays, and a clear calendar preview.→
CalculatorsDebt-to-Income Ratio CalculatorCalculate housing and total debt-to-income ratios, normalize annual income, and explore target capacity and separate what-if scenarios.→
CalculatorsDensity CalculatorSolve density, mass or volume from two known quantities, with dimensional unit conversion, a clear relationship diagram and SI substitutions.→
CalculatorsDew Point CalculatorEstimate dew point, relative humidity or air temperature with a documented Magnus approximation, clear units and temperature-spread visualization.→
CalculatorsDivision CalculatorDivide signed integers and finite decimals exactly as rational numbers, with rounded or repeating labels and a real step-by-step long-division walkthrough.→
CalculatorsDown Payment CalculatorCalculate cash down, percentage or implied purchase price, then explore optional financing, closing costs and clearly labeled home-cost comparisons.→
CalculatorsDue Date CalculatorEstimate pregnancy due dates from LMP, conception, ultrasound dating or IVF transfer, with date-safe gestational progress and a clear milestone timeline.→
CalculatorsFinance CalculatorSolve N, nominal annual interest, present value, payment or future value with signed cash flows, separate payment and compounding frequencies, and balance schedules.→
CalculatorsExponents CalculatorCalculate powers or solve for a real base or exponent, with exact integer and rational results, perfect-root checks and transparent approximate forms.→
CalculatorsFactorial CalculatorCalculate exact factorials through 10,000 with BigInt, digit and trailing-zero counts, scientific previews and a readable factorial-growth chart.→
CalculatorsFHA Loan CalculatorEstimate FHA purchase payments, upfront and recurring mortgage insurance, closing cash, amortization and extra-payment savings with explicit policy assumptions.→
CalculatorsFraction CalculatorAdd, subtract, multiply or divide exact fractions, mixed numbers, integers and finite decimals with clear reduction steps.→
CalculatorsFraction SimplifierReduce signed fractions and mixed numbers exactly, with the greatest common factor, mixed form and separate decimal approximation.→
CalculatorsFuel Cost CalculatorEstimate trip fuel, fuel-only cost, tolls and parking, contingency and per-person cost with precise US, imperial and metric conversions.→
CalculatorsFuture Value CalculatorProject lump sums and recurring contributions using explicit compounding, matching payment periods and optional inflation adjustment.→
CalculatorsGas Mileage CalculatorCalculate fuel efficiency from distance, odometers or multiple fill-ups, with correctly weighted overall consumption and unit comparisons.→
CalculatorsGCF CalculatorFind the exact nonnegative greatest common factor of signed integers, inspect Euclidean steps and calculate the LCM when all inputs are nonzero.→
CalculatorsGFR CalculatorEstimate adult kidney filtration using race-free 2021 CKD-EPI equations, with documented lab units and non-diagnostic GFR categories.→
CalculatorsGolf Handicap CalculatorExplore provisional 18-hole handicap calculations using the USGA differential-selection table, counted scores and correctly staged course/playing rounding.→
CalculatorsGPA CalculatorCalculate semester or cumulative GPA and target feasibility using editable courses, credits, grading scales and explicitly capped weighting.→
CalculatorsGravel CalculatorEstimate rectangular, circular, triangular or multi-zone gravel volume, weight, material cost and bags with clear density and waste assumptions.→
CalculatorsHeat Index CalculatorEstimate apparent temperature with the complete NWS screening and humidity-adjustment procedure, with conservative validity handling.→
CalculatorsHeight CalculatorConvert human-height measurements into readable feet/inches and compare two heights with explicit signed and percentage differences.→
CalculatorsHELOC CalculatorEstimate revolving credit capacity, drawn-balance payments and draw-to-repayment changes on a defined monthly HELOC timeline.→
CalculatorsHex CalculatorPerform exact hexadecimal arithmetic, integer-base conversion and explicitly masked 8/16/32/64-bit operations with BigInt.→
CalculatorsHome Equity Loan CalculatorEstimate a fixed-term second loan, combined LTV, fee financing and extra-principal savings without treating it as a revolving HELOC.→
CalculatorsIP Subnet CalculatorAnalyze IPv4 and IPv6 network prefixes, exact address counts, masks, membership and bounded IPv4 subnet splits entirely locally.→
CalculatorsHouse Affordability CalculatorEstimate a purchase-price ceiling from configured DTI limits, debts, available cash and price-dependent housing expenses.→
CalculatorsIdeal Weight CalculatorCompare published adult historical reference-weight formulas with clear applicability limits and a separately labeled BMI reference interval.→
CalculatorsIncome Tax CalculatorEstimate US 2026 federal or UK 2026–27 non-savings employment income tax, or build a worldwide custom progressive-bracket model.→
CalculatorsIRR CalculatorSolve periodic IRR or actual/365 XIRR, identify multiple verified roots and compare investment cash-flow NPV without guessed returns.→
CalculatorsLean Body Mass CalculatorCompare adult Boer, James and Hume lean-mass estimates with a separately entered body-fat-derived value, without treating regressions as measurements.→
CalculatorsLog CalculatorEvaluate real logarithms and recover arguments or bases, with natural, common and binary modes and explicit numerical domain limits.→
CalculatorsLove CalculatorCreate a deterministic, Unicode-aware playful name score locally, with clear entertainment-only meaning and no relationship predictions.→
CalculatorsMacro CalculatorAllocate a user-selected daily calorie budget among protein, carbohydrate and fat, with percentage or g/kg planning and optional meal arithmetic.→
CalculatorsMolarity CalculatorSolve concentration, moles, volume, solute mass or dilution using explicit solution-volume units and conservation-of-solute assumptions.→
CalculatorsMolecular Weight CalculatorParse bounded chemical formulas, groups, hydrates and explicit charges with a versioned local CIAAW-based atomic-weight dataset.→
CalculatorsMulch CalculatorEstimate garden mulch volume, whole bags and bag-versus-bulk material costs, with optional user-supplied density rather than gravel assumptions.→
CalculatorsMutual Fund CalculatorCalculate fund units and NAV-based purchases, redemptions and values, with transparent loads and appropriate dated-return interpretation.→
CalculatorsSIP CalculatorProject fixed or annual step-up SIP contributions, solve a nominal goal and compare inflation or separately funded lump-sum assumptions.→
CalculatorsOne Rep Max CalculatorCompare bounded Epley, Brzycki, Lombardi and O’Conner lifting estimates, with observed one-rep handling and illustrative percentage loads.→
CalculatorsOvulation CalculatorExplore calendar-based ovulation and fertile-window estimates with labeled cycle-length scenarios and an interactive calendar.→
CalculatorsPace CalculatorCalculate pace, finish time, distance, race splits and cumulative segment progression with exact millisecond split totals.→
CalculatorsPeriod CalculatorForecast menstrual start and inclusive end dates across cycles with an interactive calendar and explicit variability scenarios.→
CalculatorsPregnancy CalculatorEstimate gestational age and due dates from LMP, clinical reference dating or embryo transfer, with a trimester timeline.→
CalculatorsPregnancy Conception CalculatorWork backward from pregnancy dating references to an approximate fertilization anchor with a reversible dating timeline.→
CalculatorsPregnancy Weight Gain CalculatorCompare entered pregnancy weight gain with published BMI-based total reference ranges and a clearly derived singleton illustration.→
CalculatorsPresent Value CalculatorDiscount single amounts, annuities and dated cash flows using explicit payment and compounding frequencies.→
CalculatorsProtein CalculatorCompare adult protein references and explicit g/kg assumptions with a range graphic and equal-meal arithmetic.→
CalculatorsQuadratic Equation SolverSolve exact rational quadratic coefficients, distinguish real and complex roots and inspect an interactive polynomial graph.→
CalculatorsRatio CalculatorSimplify exact ratios, solve proportions and allocate quantities with labeled part-to-whole comparison bars.→
CalculatorsRefinance CalculatorCompare actual loan schedules, financed or upfront fees, cash-out and balance-adjusted break-even with interactive amortization and savings charts.→
CalculatorsRemainder CalculatorFind exact signed integer quotients and remainders, compare Euclidean and truncation conventions and inspect long-division steps.→
CalculatorsRent CalculatorExplore rent ranges constrained by take-home cash, household expenses and your chosen housing-percentage scenarios.→
CalculatorsRent vs. Buy CalculatorCompare renting and buying with equal-funding investment portfolios, mortgage equity, selling costs and annual crossover scenarios.→
CalculatorsResistor CalculatorDecode or encode four-, five- and six-band resistor colors and calculate ideal series or parallel resistance with labeled electrical diagrams.→
CalculatorsRetirement CalculatorModel contributions, inflation-linked spending, pension income, funding gaps and portfolio depletion on a transparent retirement timeline.→
CalculatorsRight Triangle CalculatorSolve sufficient side, angle, area or perimeter inputs and inspect a uniformly scaled right triangle, its angles and hypotenuse altitude.→
CalculatorsRoman Numeral ConverterConvert integers and strictly validated canonical Roman numerals from 1 to 3999 with an interactive subtractive-symbol breakdown.→
CalculatorsRoofing CalculatorEstimate gable, shed, simple hip or measured-section roof area, roof squares and whole material packages with pitch-aware geometry.→
CalculatorsSalary CalculatorConvert eight pay frequencies and compare regular earnings, overtime, bonuses, leave and explicitly entered deductions.→
CalculatorsScientific CalculatorEvaluate real scientific expressions with a safe parser, scientific keypad, DEG/RAD controls, memory and private calculation history.→
CalculatorsScientific Notation CalculatorConvert and calculate exact decimal/E-notation values, compare scientific and engineering forms and inspect decimal-place movement.→
CalculatorsShoe Size ConversionCompare approximate adult shoe-size mappings and explicitly sourced children’s chart rows with a foot-length measurement guide.→
CalculatorsSleep CalculatorPlan bedtimes and wake times, compare sleep opportunities and inspect overnight schedules with explicit latency and offset assumptions.→
CalculatorsSlope CalculatorExplore points and line equations, inspect rise/run geometry and compare vertical, horizontal, parallel and perpendicular lines.→
CalculatorsSquare Footage CalculatorCombine dimensioned shapes and rooms, subtract explicit exclusions and estimate waste-adjusted coverage and whole material packages.→
CalculatorsSquare Root CalculatorFind principal real or complex square roots, test exact rationality and inspect radical simplification, square grids and approximations.→
CalculatorsStair CalculatorCompute integer risers, actual step heights and a defined n−1 tread flight with a dimensioned stair and stringer reference.→
CalculatorsStandard Deviation CalculatorCalculate stable population and sample statistics, inspect observed-data dispersion and review centered deviations without assuming normality.→
CalculatorsTarget Heart Rate CalculatorCompare maximum-heart-rate estimates or an entered measurement and inspect percentage-of-maximum versus heart-rate-reserve arithmetic.→
CalculatorsTile CalculatorPlan rectangular tile surfaces with actual straight or staggered grid-piece counts, grout, edge cuts, waste and whole-box purchasing.→
CalculatorsTime Card CalculatorAudit multiple shifts and breaks, detect overlaps, configure overtime and produce a printable weekly paid-hours and gross-pay report.→
CalculatorsTime Zone ConverterConvert date-aware IANA local times, explicitly resolve repeated clocks and compare multi-location business-hour meeting options.→
CalculatorsTip CalculatorReconcile pretax bill, tax, service charge and discretionary tip with exact minor-unit equal or custom-weight bill splits.→
CalculatorsTire Size CalculatorCompare nominal radial passenger-tire dimensions, unloaded circumference, speedometer ratios and estimated ride-height changes.→
CalculatorsTriangle CalculatorSolve general triangle input combinations, retain every valid SSA solution and inspect actual scaled geometry and altitudes.→
CalculatorsTrigonometry CalculatorExplore trigonometric ratios, principal inverses, special-angle values and identities with a synchronized unit circle and discontinuity-aware graph.→
CalculatorsVA Mortgage CalculatorEstimate a U.S. VA purchase-loan payment using the verified official funding-fee tiers, confirmed exemption status and a transparent amortization schedule.→
Developer ToolsYAML Formatter & ValidatorValidate YAML documents, detect duplicate keys and format with comment-aware tooling while checking that parsed values and aliases remain intact.→
CalculatorsVoltage Divider CalculatorCalculate unloaded and loaded divider voltages, referenced source current and resistor/load dissipation with an interactive circuit.→
CalculatorsWatts to Amps CalculatorConvert real power to DC, single-phase RMS or balanced three-phase line current with explicit voltage and power-factor assumptions.→
Developer ToolsJSON DiffCompare parsed JSON structures independently of object-key order, inspect JSON Pointer differences and highlight matching source paths.→
CalculatorsWeighted Average CalculatorCombine editable numeric values or grades with explicitly selected decimal or percentage weights and inspect each normalized contribution.→
CalculatorsWind Chill CalculatorEvaluate the NWS wind-chill formula only within its stated temperature/wind domain and inspect a validity-aware sensitivity map.→
CalculatorsWire Gauge CalculatorCompare AWG conductor geometry, copper/aluminum resistance at 20°C and an optional equal-outgoing/return DC voltage-drop estimate.→
Developer ToolsJSON to XMLConvert supported JSON values to a versioned typed XML mapping that preserves ordered arrays, object keys, primitives, null and empty containers.→
Developer ToolsXML to JSONReverse Nimzoa typed JSON/XML documents or preserve arbitrary XML elements, attributes, namespaces and mixed-content ordering in a separate JSON representation.→
Developer ToolsJSON to JSON SchemaInfer a Draft 2020-12 schema from example JSON, choose property assumptions and edit or validate the resulting schema structure locally.→
Developer ToolsJSON UnescapeDecode one layer of JSON string escaping or escape Unicode text as a complete JSON string literal.→
Developer ToolsHTML ValidatorInspect HTML5 parser-recovery diagnostics, duplicate IDs and selected accessibility lint with source locations.→
Developer ToolsHTML MinifierApply conservative source-preserving HTML compression with explicit safe and advanced settings.→
Developer ToolsJavaScript FormatterFormat JavaScript using Prettier with indentation, quotes, semicolons, width and trailing-comma controls.→
Developer ToolsGit CheatsheetSearch practical Git commands, explore the four-stage workflow and generate conservative copyable commands.→
Developer ToolsMD5 Hash GeneratorHash UTF-8 text or a local file incrementally and compare an expected MD5 checksum.→
Developer ToolsAES Encrypt & DecryptEncrypt text locally using AES-256-GCM and a versioned PBKDF2-SHA256 JSON envelope, or authenticate and decrypt it.→
Developer ToolsPassword Strength CheckerEstimate password guessability locally using pattern-aware English and common dictionaries, with actionable feedback.→
Developer ToolsText to HexEncode Unicode text as hexadecimal UTF-8 bytes or strictly decode hexadecimal bytes back to text.→
File ConvertersJPG to SVGTrace a local JPEG into genuine SVG vector paths with color, detail, smoothing and noise controls.→
File ConvertersPNG to ICO ConverterBuild a genuine multi-resolution ICO from a transparent PNG, with favicon presets and contain, cover or stretch fitting.→
File ConvertersPNG to SVG ConverterTrace PNG pixels into genuine SVG vector paths with tunable color, detail, smoothing and noise controls.→
File ConvertersWebP to GIF ConverterConvert static or animated WebP to real GIF with composed frames, timing, loop, palette and dithering controls.→
File ConvertersSVG to PNG ConverterRender a safely validated SVG to PNG at its original dimensions or a chosen scale, preserving transparency.→
File ConvertersSVG to JPG ConverterRender a safely validated SVG to a high-quality JPEG with dimensions, aspect lock and an explicit background color.→
File ConvertersSVG to PDF ConverterExport supported SVG paths and text as native vector PDF, with explicit raster mode and page-layout controls.→
File ConvertersTIFF to PNG ConverterDecode baseline multipage TIFF, apply orientation and export selected pages as verified lossless PNG images.→
File ConvertersTIFF to JPG ConverterConvert selected TIFF pages to JPEG with orientation, quality, background and optional resize controls.→
File ConvertersTIFF to PDF ConverterTurn selected TIFF pages into an ordered PDF with original proportions, page-size, fit and margin controls.→
File ConvertersJFIF to JPG ConverterSave a verified JPEG/JFIF image with a .jpg filename while preserving the original compressed bytes and metadata.→
File ConvertersHEIC to JPG ConverterDecode supported HEVC HEIC images locally and export high-quality JPEGs with orientation, image selection, resizing and background controls.→
File ConvertersHEIC to PNG ConverterExport supported HEIC images as genuine PNGs with alpha and exact verification against the intended decoded 8-bit pixel buffer.→
File ConvertersHEIC to PDF ConverterBuild a verified PDF from selected HEIC images, preserving image order, displayed proportions and source pixel resolution.→
File ConvertersAVIF to JPG ConverterConvert supported 8-bit AVIF still images to JPEG using local browser decoding, explicit alpha backgrounds and adjustable quality.→
File ConvertersAVIF to PNG ConverterDecode supported 8-bit AVIF still images locally and save verified PNG output with decoded transparency and original display dimensions.→
File ConvertersTXT to PDF ConverterCreate selectable-text PDFs from local text files or pasted Unicode, with wrapping, page breaks, margins and line-spacing controls.→
File ConvertersHTML to PDF ConverterConvert safe document HTML and common CSS into paginated PDFs with headings, lists, tables, embedded images and selectable text.→
File ConvertersXLS to CSV ConverterRead genuine legacy binary XLS worksheets, preview cell values and export UTF-8 CSV with safe quoting, delimiter and formula-injection controls.→
File ConvertersPSD to PNG ConverterExport the full-resolution saved composite of supported RGB8 Photoshop documents as verified lossless PNG with transparency.→
File ConvertersPSD to JPG ConverterConvert supported full-resolution RGB8 PSD composites to high-quality JPEG with explicit alpha background and quality controls.→
File ConvertersMP3 to WAV ConverterDecode supported MP3 audio into genuine PCM WAV with sample-rate, channel and bit-depth controls.→
File ConvertersWAV to MP3 ConverterEncode supported PCM WAV as real MP3 with selectable 128, 192, 256 or 320 kbps quality.→
File ConvertersM4A to MP3 ConverterConvert supported AAC-based M4A files to genuine MP3 locally, with duration and playback verification.→
File ConvertersMP4 to GIF ConverterMake animated GIF clips from supported MP4 video with start, duration, FPS, width and palette controls.→
File ConvertersMP4 to MP3 ConverterExtract supported MP4 audio and encode it as MP3 while retaining its audio timeline and avoiding video re-encoding.→
File ConvertersOGG to MP3 ConverterConvert supported Ogg Vorbis or Opus audio into playable MP3 using local native decoding and LAME encoding.→
File ConvertersBMP to PDFConvert supported BMP pixels into a genuine PDF with original image detail, orientation and adjustable page fitting.→
File ConvertersCBZ to PDFRead ZIP comic archives, naturally order pages and create a PDF from selected JPEG, PNG or supported BMP images.→
File ConvertersCSV to PDFTurn quoted CSV data into readable, selectable-text PDF tables with repeated headers and horizontal panels for wide data.→
File ConvertersCreate BookletImpose existing PDF pages into vector-preserving booklet spreads with front/back ordering and automatic blank pages.→
File ConvertersEML to PDFConvert genuine MIME email into a readable PDF with sender, recipients, original date, subject and sanitized message content.→
File ConvertersExtract PDF ImagesExtract actual embedded PDF image objects with previews, image selection and ZIP download.→
File ConvertersFB2 to PDFRead supported FictionBook XML chapters, headings, paragraphs and embedded images into a paginated selectable-text PDF.→
File ConvertersFlatten PDFFlatten saved form and supported annotation appearances into native PDF page content while preserving page geometry.→
File ConvertersHighlight PDFAdd true text-run highlight annotations or clearly labeled visual region overlays with adjustable color and opacity.→
File ConvertersPDF to CSVExtract simple aligned text tables from selected PDF pages, review columns and save correctly quoted Unicode CSV.→
File ConvertersJPG to GIFConvert JPEG images into genuine single-frame GIFs with orientation-aware decoding, original dimensions and selectable palettes.→
File ConvertersMarkdown to PDFCreate readable, paginated PDFs from pasted Markdown or local .md files with selectable text, tables, code and safe links.→
File ConvertersPDF ReaderRead PDFs privately with page navigation, zoom, fit-to-width, rotation, text search and access to native browser printing.→
File ConvertersPDF ScannerTurn ordered local images into scanned-style PDFs with manual crop, rotation, grayscale, black-and-white and tonal adjustments.→
File ConvertersRTF to PDFConvert common RTF text documents into readable, selectable-text PDFs with inline formatting and Unicode font support.→
File ConvertersPDF to MarkdownExtract text-based PDF pages into downloadable Markdown with page selection, visible lists, optional headings and simple table mode.→
File ConvertersPDF to TIFFRender selected PDF pages into genuine multipage TIFF with chosen page order, intrinsic orientation and color or grayscale pixels.→
File ConvertersPrint PosterSplit a photo or selected PDF page into correctly aligned printable poster tiles with overlap, margins and trim marks.→
File ConvertersXML to PDFValidate and print XML as a readable, indented, selectable-text PDF while retaining source structure, attributes and escaped characters.→
File ConvertersPhoto Collage MakerArrange 2–12 photos into live-preview grids with crop positioning, borders, corners, backgrounds and high-quality PNG/JPG export.→
File ConvertersSignature MakerDraw smooth signatures with mouse, touch or stylus and export tightly cropped transparent PNG or white-background JPG.→
Random & Decision ToolsYes or No WheelMake a quick binary decision with an animated weighted Yes/No wheel, optional Maybe and secure browser randomness.→
Random & Decision ToolsSecret Santa GeneratorGenerate valid Secret Santa assignments for 3–100 people with exclusions, individual reveals and private printable cards.→
Developer ToolsColor WheelExplore digital HSL colors on an interactive hue wheel and export harmonious palettes as PNG or CSS variables.→
Text ToolsBold Text GeneratorCreate 19 real copyable Unicode text styles with instant previews, search, favorites and supported-style normalization.→
Random & Decision ToolsRandom Word GeneratorGenerate securely selected English words from a curated CC0 vocabulary with live filter counts, presets, favorites and TXT/CSV export.→
Text ToolsOnline NotepadWrite and organize local plain/rich-text notes with reliable autosave status, search, history, safe exports and recoverable storage failures.→
CalculatorsClick CounterManage independent named counters with custom increments, history, undo/redo, presentation mode and portable backups.→
CalculatorsCountdown TimerRun independent named countdowns and repeating interval sequences from absolute deadlines with local session recovery.→
CalculatorsScoreboardTrack configurable teams, scores, penalties, rounds and a game clock with undo, presets and match exports.→
CalculatorsStopwatchMeasure elapsed time and lap splits with high-resolution runtime timing, notes, pace comparisons and local recovery.→
Utility ToolsCPS TestMeasure registered primary mouse/touch presses with fixed-duration tests, rolling peaks, graphs and local personal bests.→
CalculatorsCalendarPlan and organize events with a free online calendar featuring month, week, and day views, recurring schedules, time zones, printable calendars, and local backups. No signup required.→
Text ToolsTo-Do ListCreate a free online to-do list with projects, subtasks, priorities, due dates, recurring tasks, and portable backups. Organize your tasks privately in your browser without signing up.→
CalculatorsTake-Home Pay CalculatorEstimate annual take-home pay with 2026 US federal/FICA, 2026–27 UK income tax/NI, or user-defined worldwide tax rules.→

Tools for Everyday Tasks

Find practical utilities for common tasks, from editing documents and converting images to calculating figures and formatting text.

Convenient Browser Based Tools

Use tools directly in your browser. Supported image and PDF operations process files locally on your device.

Simple Steps, Useful Results

Follow straightforward instructions and download your finished files or use the generated results, depending on the tool.

Free Online Tools for Everyday Digital Tasks

Nimzoa brings together practical online tools in one place, helping you complete common digital tasks without switching between multiple websites or installing unnecessary software.

Whether you need to prepare a document, edit an image, calculate a value, format text, or work with developer data, explore our tool collection to find a suitable solution.

Our tools are designed for individuals, students, professionals, businesses, and developers looking for straightforward ways to get things done.

Explore Tools by Category

PDF Tools

Work with PDF documents using utilities for tasks such as merging, splitting, compressing, rotating, extracting text, and converting supported files.

Nimzoa also provides PDF editing and page-management tools for selected document workflows. Features and supported file types vary by tool.

Image Tools

Prepare images for websites, documents, applications and everyday sharing.

Explore tools for image compression, resizing, cropping and format conversion, including JPG, PNG and WebP workflows.

Some tools also help prepare images to meet specific size or dimension requirements.

Online Calculators

Find calculators for common mathematical, financial and everyday calculations.

Available utilities include percentage, discount, profit margin, interest, mortgage, investment, BMI, and date related calculators.

Calculator results are intended for general information and should be independently verified when making important financial, medical, or other decisions.

Text and Writing Tools

Simplify common text-related tasks using word and character counters, case converters, placeholder text generators, and other formatting utilities.

These tools can be useful when preparing content, checking text length or organizing written information.

Developer Tools

Explore utilities for common development tasks, including JSON formatting and validation, color conversion, Base64 encoding and decoding, and UUID generation.

These tools help developers inspect, transform, and prepare information for technical workflows.

Converters and Everyday Utilities

Nimzoa also offers file converters and everyday utilities such as QR code generation, password generation, and unit conversion.

Browse the available tools to find a practical solution for your task.

How to Use Nimzoa's Online Tools

1. Choose a Tool

Browse the complete directory or explore a category to find the utility that matches your task.

2. Follow the Instructions

Open the selected tool and provide the required input, such as a file, text, or calculation values.

Each tool has its own controls, supported formats, and processing requirements.

3. Get Your Result

Review the output and download the finished file when a download is available. Other tools display results directly on the page for you to use.

Browser Based Tools and File Privacy

Nimzoa emphasizes convenient browser based workflows.

Supported image and PDF tools process selected files locally in your browser rather than uploading them to Nimzoa's application servers. This can help you complete file-processing tasks while keeping those files on your device.

Processing methods and capabilities may differ between tools. Check the individual tool's instructions and privacy information for details.

Nimzoa also uses website analytics and accepts user reviews. These activities are separate from local file processing and are explained in our Privacy Policy.

Why Use Nimzoa?

Nimzoa focuses on making everyday digital work easier through clear interfaces, practical features, and accessible tools.

You can explore a growing collection of utilities from a single website, without needing to learn complicated software for every small task.

Many tools are available without creating an account, and supported browser based operations can be completed directly on your device.

Frequently Asked Questions

Are Nimzoa's online tools free?

Nimzoa currently offers its publicly available tools for free. You can open a tool and use its available features without purchasing a subscription.

Do I need to install software?

Most Nimzoa tools run directly in a modern web browser, so separate software installation is generally unnecessary.

Do I need an account to use the tools?

Nimzoa's public tools are designed to be accessible without requiring a user account.

Are my uploaded files stored on Nimzoa's servers?

Supported browser-local image and PDF tools process files on your device without uploading those files to Nimzoa's application servers. Check the privacy information for each tool, as processing methods may vary.

Can I use Nimzoa on my phone?

Many Nimzoa tools are designed for modern mobile browsers. Availability and performance may depend on your device, browser, and the tool you select.

Are calculator results always accurate?

Calculators provide results based on the entered values and their calculation methods. You should verify important results independently, especially for financial, medical, or other significant decisions.

How can I suggest a new tool or report a problem?

You can contact Nimzoa at [email protected] to share suggestions, report technical issues or request assistance.

Find the Right Tool and Get Started

Explore the tools listed above to choose the utility that best matches your task.

You can also browse Nimzoa's Categories page to discover related tools or return to the homepage to explore featured utilities.

Our collection will continue to evolve as we improve existing tools and introduce new ways to simplify everyday digital work.