Local when possible
Supported files are processed in your browser instead of being uploaded.
Useful work, without the clutter
Small tools. One calm place.
Convert files, format data, calculate, resize, encode and more — directly in your browser.
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Runs locallyYour inputs stay in your browser.
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Start with an area
Focused spaces for the jobs you do most often.
PDF Tools
Merge PDF · Split PDF · Compress PDF
Image Tools
Compress Image · Resize Image · Crop Image
Developer & Data Tools
JSON Formatter · JSON Validator · JSON to CSV
Audio, Video & Subtitle Tools
MP3 to WAV · WAV to MP3 · MP4 to MP3
Math & Everyday Calculators
Percentage Calculator · Fraction Calculator · Average Calculator
Unit & Technical Converters
Length Converter · Weight Converter · Temperature Converter
Text Tools
Word Counter · Character Counter · Reading Time Calculator
QR & Barcode Tools
URL QR Generator · Text QR Generator · Wi-Fi QR Generator
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Common tasks
Jump straight into a useful tool.
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Built for quick, private work
No account, no install, no unnecessary friction.
Nothing to install
Open a tool and get the job done from any modern browser.
Fast by design
Static pages, lightweight interfaces and focused interactions.
04
Explore every area
All categories are still here when you need something more specific.
All tools429
Percentage CalculatorPercentage Increase CalculatorPercentage Decrease CalculatorPercentage Difference CalculatorReverse Percentage CalculatorFraction CalculatorFraction to DecimalDecimal to FractionRatio CalculatorProportion CalculatorAverage CalculatorWeighted Average CalculatorMedian CalculatorMode CalculatorStandard Deviation CalculatorRule of Three CalculatorScientific Notation ConverterSquare Root CalculatorExponent CalculatorLogarithm CalculatorFactorial CalculatorGCD CalculatorLCM CalculatorPrime Number CheckerPrime Factorization CalculatorRounding CalculatorSignificant Figures CalculatorPercentage Error CalculatorAbsolute Difference CalculatorRange CalculatorMargin CalculatorMarkup CalculatorProfit CalculatorBreak-even CalculatorROI CalculatorROAS CalculatorCAC CalculatorLTV CalculatorConversion Rate CalculatorChurn Rate CalculatorGrowth Rate CalculatorCAGR CalculatorSimple Interest CalculatorCompound Interest CalculatorLoan Payment CalculatorAmortization CalculatorSavings Goal CalculatorDiscount CalculatorSale Price CalculatorPrice Per Unit CalculatorCPM CalculatorCPC CalculatorCTR CalculatorRevenue CalculatorProfit Margin CalculatorInventory Turnover CalculatorBurn Rate CalculatorRunway CalculatorCommission CalculatorUnit Economics CalculatorConcrete CalculatorCement CalculatorBrick CalculatorConcrete Block CalculatorTile CalculatorFlooring CalculatorHardwood CalculatorLaminate CalculatorCarpet CalculatorPaint CalculatorWallpaper CalculatorDrywall CalculatorPlaster CalculatorGravel CalculatorSand CalculatorMulch CalculatorSoil CalculatorAsphalt CalculatorPaver CalculatorStone CalculatorRoof Pitch CalculatorRoof Area CalculatorRafter Length CalculatorStair CalculatorDeck Board CalculatorDeck Material CalculatorFence CalculatorPost Spacing CalculatorStud CalculatorLumber CalculatorBoard Foot CalculatorInsulation CalculatorGutter CalculatorConcrete Slab CalculatorConcrete Footing CalculatorRetaining Wall CalculatorDriveway Material CalculatorPool Volume CalculatorPond Volume CalculatorRoom Area CalculatorDPI CalculatorPPI CalculatorPrint Size CalculatorMegapixel CalculatorSensor Crop Factor CalculatorEquivalent Focal Length CalculatorDepth of Field CalculatorHyperfocal Distance CalculatorExposure CalculatorShutter Speed CalculatorLong Exposure CalculatorND Filter CalculatorField of View CalculatorImage Resolution CalculatorPrint Resolution CheckerAspect Ratio CalculatorAspect Ratio ConverterVideo Bitrate CalculatorVideo File Size CalculatorAudio File Size CalculatorTimelapse Storage CalculatorTimelapse Interval CalculatorStorage Capacity CalculatorRAW Storage CalculatorWord CounterCharacter CounterSentence CounterParagraph CounterReading Time CalculatorSpeaking Time CalculatorUppercase ConverterLowercase ConverterTitle Case ConverterSentence Case ConverterCamel Case ConverterSnake Case ConverterKebab Case ConverterRemove Duplicate LinesSort LinesReverse TextReverse LinesRemove Empty LinesRemove Extra SpacesTrim LinesFind and ReplaceText DiffRemove Line BreaksAdd Line NumbersRandomize LinesAlphabetize ListWord Frequency CounterUnique Word CounterDuplicate Word FinderText to SlugJSON FormatterJSON BeautifierJSON MinifierJSON ValidatorJSON ViewerJSON to CSVCSV to JSONJSON to XMLXML to JSONJSON to YAMLYAML to JSONJSON SorterJSON EscapeJSON UnescapeJSON DiffHTML FormatterHTML MinifierCSS FormatterCSS MinifierJavaScript FormatterSQL FormatterMarkdown to HTMLHTML to MarkdownRegex TesterRegex EscapeCron Expression ParserUnix Timestamp ConverterEpoch GeneratorCSV FormatterCSV ValidatorYAML ValidatorXML ValidatorURL ParserQuery String ParserHTTP Header ParserBase64 EncoderBase64 DecoderURL EncoderURL DecoderHTML Entity EncoderHTML Entity DecoderJWT DecoderUUID GeneratorULID GeneratorMD5 GeneratorSHA-1 GeneratorSHA-256 GeneratorSHA-512 GeneratorRandom Token GeneratorHex to TextText to HexBinary to TextText to BinaryASCII to TextText to ASCIIRandom Number GeneratorRandom Name PickerRandom WheelRandom Team GeneratorRandom Group GeneratorRandom List PickerRandom Letter GeneratorRandom Word GeneratorCoin FlipDice RollerYes or No GeneratorRandom Date GeneratorRandom Time GeneratorRandom Password GeneratorRandom UUID GeneratorRandom Pair GeneratorTournament Pairing GeneratorSecret Santa GeneratorClassroom Student PickerRandom Order GeneratorLottery Number GeneratorBingo Number GeneratorDecision WheelRandom Sequence GeneratorColor PickerColor Palette GeneratorPalette From ImageRandom Color GeneratorGradient GeneratorCSS Gradient GeneratorHEX to RGBRGB to HEXHEX to HSLHSL to HEXRGB to HSLCMYK to RGBRGB to CMYKColor Contrast CheckerWCAG Contrast CalculatorComplementary Color GeneratorAnalogous Color GeneratorTriadic Color GeneratorColor Shades GeneratorColor Tints GeneratorColor MixerBrand Palette GeneratorCSS Color GeneratorImage Average ColorColor Blindness PreviewCompress ImageResize ImageCrop ImageRotate ImageFlip ImageJPG to PNGPNG to JPGWebP to JPGWebP to PNGJPG to WebPPNG to WebPHEIC to JPGSVG to PNGSVG to JPGImage to Base64Base64 to ImageRemove EXIF MetadataEXIF ViewerChange Image DPIImage Dimensions CheckerImage File Size EstimatorAdd Image BorderRound Image CornersGrayscale ImageImage Opacity ToolPixelate ImageBlur ImageImage Color PickerExtract Colors From ImageBatch Image ResizerProfile Picture CropperYouTube Thumbnail ResizerInstagram Image ResizerInstagram Story ResizerOpenGraph Image ResizerFavicon GeneratorImage to FaviconFavicon CheckerICO to PNGPNG to ICOSVG OptimizerSVG ViewerSVG to Data URIData URI to ImagePlaceholder Image GeneratorWeb Manifest GeneratorRobots.txt GeneratorSitemap XML GeneratorMeta Tag GeneratorOpenGraph Tag GeneratorTwitter Card GeneratorSchema Markup GeneratorCSS Box Shadow GeneratorBorder Radius GeneratorCSS Clamp CalculatorREM to PXPX to REMViewport Unit CalculatorCSS Triangle GeneratorCSS Grid GeneratorURL QR GeneratorText QR GeneratorWi-Fi QR GeneratorEmail QR GeneratorPhone QR GeneratorSMS QR GeneratorWhatsApp QR GeneratorvCard QR GeneratorLocation QR GeneratorCalendar Event QR GeneratorQR Color CustomizerQR With LogoQR Reader From ImageBarcode GeneratorCode 128 GeneratorEAN-13 GeneratorEAN-8 GeneratorUPC-A GeneratorCode 39 GeneratorISBN Barcode GeneratorBarcode ReaderMerge PDFSplit PDFRotate PDFDelete PDF PagesExtract PDF PagesReorder PDF PagesImages to PDFJPG to PDFPNG to PDFPDF to JPGPDF to PNGCompress PDFAdd PDF Page NumbersAdd PDF WatermarkRemove PDF MetadataPDF Metadata ViewerPDF Page CountPDF Size AnalyzerCrop PDFProtect PDF With PasswordUnlock PDF With Known PasswordCombine Images and PDFPDF Page Size ConverterGrayscale PDFPDF Text ExtractorMP3 to WAVWAV to MP3M4A to MP3OGG to MP3AAC to MP3Audio TrimmerAudio CutterAudio JoinerChange Audio VolumeStereo to MonoExtract Audio From VideoMP4 to MP3Video TrimmerVideo CropperVideo RotatorMute VideoGIF to MP4MP4 to GIFVideo Speed ChangerAudio Bitrate ConverterVideo Bitrate ConverterSRT to VTTVTT to SRTSubtitle Shift ToolSubtitle MergerSTL ViewerSTL Dimensions CheckerSTL Volume CalculatorFilament Length CalculatorFilament Weight CalculatorFilament Cost Calculator3D Print Cost CalculatorPrint Time Cost CalculatorResin Volume CalculatorResin Cost CalculatorLayer Height CalculatorSteps per mm CalculatorFlow Rate CalculatorExtrusion Multiplier CalculatorE-steps CalculatorNozzle Flow CalculatorModel Scale CalculatorSupport Angle CalculatorInfill Material EstimatorFilament Remaining CalculatorLength ConverterArea ConverterVolume ConverterWeight ConverterTemperature ConverterSpeed ConverterPressure ConverterEnergy ConverterPower ConverterTorque ConverterDensity ConverterFuel Economy ConverterData Storage ConverterData Transfer Rate ConverterAngle ConverterTime ConverterFrequency ConverterForce ConverterAcceleration ConverterCooking Measurement Converter