Your files never leave your device.
Safe even for confidential and business documents. Over 300 free tools for images, PDFs, audio, video and data, all right in your browser. No upload, no account.
gottrix is a free collection of over 300 tools that process files locally in your browser and work offline after the first load.
What can gottrix do?
Local, not uploaded
Every conversion runs in your browser - your files never leave your device and are never uploaded. Verifiable: gottrix even works in airplane mode.
Over 300 tools
Convert and edit images, PDFs, audio and video, transform dozens of data formats like CSV, JSON and XML, plus 68 calculators, hash and crypto tools, and QR and barcode generators.
Fast and offline
No server round-trip: processing starts instantly, with no upload wait. After the first load gottrix works offline too, and results use open, standard formats.
Our flagship: the PDF editor
Edit PDF Full-screen editor No upload
Fill forms, edit text, draw, sign, comment and reorder pages - all in one session, entirely in your browser.
Most used
Image tools
All toolsHEIC to JPGHEIC to PNGHEIC to WebPHEIC to AVIFQOI to PNGPNG to QOIWebP to JPGWebP to PNGJPG to WebPPNG to WebPJPG to PNGPNG to JPGAVIF to JPGAVIF to PNGJPG to AVIFPNG to AVIFJXL to JPGJXL to PNGJPG to JXLPNG to JXLBMP to PNGBMP to JPGPNG to BMPTGA to PNGGIF to PNGGIF to JPGTIFF to JPGTIFF to PNGICO to PNGPNG to ICOFavicon generatorSVG to PNGSVG to JPGTTF to WOFF2OTF to WOFF2WOFF to WOFF2WOFF2 to TTFFont InformationGlyph CoveragePNG to SVGSVGZ to SVGPSD to PNGPSD to JPGRAW to PNGRAW to JPGJFIF to PNGPPM to PNGICNS to PNGCompress imagesResize imagesRemove image metadataRotate imageCrop imageWatermark imageImage collageGrayscale ImageInvert Image ColorsSepia ImagePixelate ImageAdd Image BorderCircle CropImage to ASCII ArtDither ImageBlur ImageSharpen ImageBrightness and ContrastFlip ImagePosterize ImageThreshold ImageSaturate ImageVignette ImageRotate HueEmboss ImageDetect EdgesSolarize ImageColor TemperatureAdd NoiseTint ImageAuto ContrastDuotonePencil SketchExtract Colour PaletteImage to Data URIRound Image CornersQR code generatorPassport photo crop 35x45Image to text (OCR)GIF to APNGAPNG to GIFQR code readerBarcode generatorBarcode readerDataMatrix generatorPDF417 generatorAztec code generator
Document tools
All toolsDOCX to HTMLDOCX to MarkdownMarkdown to HTMLEPUB to TXTCBZ to PDFRTF to TXTJPG to PDFPDF to JPGPDF to PNGMerge PDFSplit PDFRotate PDFDelete PDF pagesExtract PDF pagesOrganize PDFAdd page numbersEdit PDF metadataResize PDF pagesPDF pages per sheet (N-up)Crop PDFPDF header, footer & BatesPDF image watermarkWatermark PDFUnlock PDFProtect PDF with a passwordSign PDFEdit PDFFlatten PDF formPDF to textPDF to MarkdownMarkdown to PDFDOCX to PDFCompress PDFRedact PDFBMP to PDFGIF to PDFTIFF to PDFTXT to PDFHTML to PDFHTML to MarkdownPDF OCR (searchable)
Audio tools
All toolsData & code
All toolsCreate ZIPExtract ZIPGzip compressGzip decompressCreate TARExtract TARXLSX to CSVCSV to XLSXGeoJSON to KMLKML to GeoJSONGPX to GeoJSONGeoJSON to GPXGeoJSON to WKTWKT to GeoJSONKML to GPXGPX to KMLGeoJSON to CSVCSV to GeoJSONGeoJSON to NDJSONNDJSON to GeoJSONGeoJSON to TopoJSONTopoJSON to GeoJSONSTL to OBJOBJ to STLSTL binary to ASCIISTL ASCII to binaryPLY to STLPLY to OBJOBJ to PLYSTL to PLYSTL to GLBOBJ to GLBGLB to OBJGLB to glTFglTF to GLBCSV to MarkdownExcel to MarkdownJSON to YAMLYAML to JSONXML to JSONJSON to XMLTOML to JSONJSON to TOMLYAML to TOMLTOML to YAMLXML to YAMLYAML to XMLJSONL to JSONJSON to JSONLJSON to MarkdownXML to TOMLTOML to XMLCSV to JSONJSON to CSVImages to CBZAvro to JSONParquet to CSVParquet to JSONArrow to CSVArrow to JSONShapefile to GeoJSONSplit CSVSplit XLSXEncrypt fileDecrypt fileGenerate PGP key pairEncrypt with PGPDecrypt with PGPCalculate a checksumCalculate an HMACEncode to Base64Decode Base64Decode JWTUUID generatorPassword generatorSteganographyFormat JSONChange caseEncode URLDecode URLSort linesWord counterSlugifyBase converterEncode HTMLDecode HTMLUnix timestampColor converterLorem ipsum generatorRegex testerEscape JSONRoman numeralsMorse codeText to binaryFind & replaceClean whitespaceStrip HTMLUnicode escapeWord frequencyReading timeText to Base64Text to ASCII codesROT13 cipherNumber LinesWrap TextShuffle LinesSum NumbersExtract Email AddressesExtract URLsJoin LinesExtract NumbersFormat CSV
Video tools
All toolsCalculators
All toolsCompound Interest CalculatorLoan CalculatorVAT CalculatorSavings Goal CalculatorInflation CalculatorDiscount CalculatorTip CalculatorFuel Cost CalculatorEnergy Cost CalculatorPercentage CalculatorROI CalculatorMargin CalculatorSimple Interest CalculatorHourly Wage CalculatorRule of Three CalculatorWithdrawal Plan CalculatorCash Discount CalculatorRental Yield CalculatorCap Rate CalculatorCash-on-Cash CalculatorFIRE CalculatorNet Worth CalculatorPension Gap CalculatorNPV CalculatorIRR CalculatorPayback Period CalculatorClosing Costs CalculatorAffordability CalculatorRemaining Balance CalculatorRent vs Buy CalculatorDebt Payoff CalculatorCredit Card Payoff CalculatorDepreciation CalculatorFreelance Rate CalculatorEffective Rate CalculatorLeasing CalculatorWorking DaysAverage Stock PriceDividend YieldFund FeesRunning PaceIdeal WeightWeek NumberInheritance TaxGift TaxReal Estate Transfer TaxMotor Vehicle TaxIncome TaxCapital Gains TaxTrade TaxCorporate TaxAspect RatioPixel DensityCircleRectangleTriangleLength converterWeight converterTemperatureData sizeBreak-even CalculatorPercentage ChangeBMI CalculatorCalorie CalculatorInverse Rule of ThreeUnit Price CalculatorBody Fat CalculatorDate Difference