Free · Private · Open source
Free online tools that run in your browser
Your files never leave your device: every tool runs locally in your browser. Image, video, audio, PDF, developer and everyday tools, with no limits and no watermark.
Processed locally in your browser, never uploaded.
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Every library is credited with its license.
Image & design
Image VectorizerTurn PNG, JPG and WebP images into editable SVG vector graphics.Image ConverterConvert images between JPG, PNG, WebP, GIF and BMP, one file or a whole batch.Photo EditorAdjust, retouch, crop and add text to photos with looks and layers.Image CropperCrop pictures with a draggable frame, preset aspect ratios or a circle.EXIF RemoverView and strip EXIF metadata and GPS location from photos without re-encoding.Image CompressorShrink JPG, PNG and WebP files in batches with a quality slider.Image ResizerResize images by pixels, percentage or social media preset, in batches.Image UpscalerEnlarge photos and drawings 2×, 3× or 4× with AI upscaling, right in your browser.Image EraserPaint over objects, people or text and let AI fill the gap, at full resolution and in your browser.Segment AnythingClick any object to select it and cut it out as a transparent PNG.Background RemoverRemove photo backgrounds with AI and download a transparent PNG.Image ColorizerAdd color to black-and-white photos with AI, at full resolution, right in your browser.AI Face EnhancerRestore blurry, old or low-resolution faces in photos with AI, right in your browser.Face SwapSwap faces between two photos or within a group photo, with seamless blending and color matching, in your browser.AI Image DetectorCheck images for AI generation: Content Credentials, AI metadata and prompts, forensic hints and an optional AI classifier.Photo Collage MakerBuild grid, mosaic, freeform and heart photo collages with text, sized for social media or print.Logo MakerMake a simple logo from a name, an icon and a font; export SVG, PNG and favicons.Passport Photo MakerCrop a photo to official passport or visa sizes with a white background.Mockup GeneratorPut your design on 3D phones, laptops, posters, business cards, books, boxes, mugs and billboards, then export PNG, JPG or WebP up to 4K.Watermark MakerAdd a text or logo watermark to many photos at once, at full resolution.App Store Screenshot GeneratorDevice frames, headlines and backgrounds for App Store and Google Play screenshots.
Video
Video CompressorCompress video to a target size, trim, crop, change speed or strip the audio.Video EditorEdit on a multi-track timeline with titles, transitions, subtitles and music.Video ConverterConvert videos to MP4, WebM, MOV or MKV and change the resolution.LUT GeneratorCreate, preview and convert color-grading LUTs in .cube and HALD formats.Video UpscalerUpscale short videos 2× or 4× with AI, up to 4K, and keep the sound, right in your browser.Video FPS IncreaserMake videos smoother at 60 or 120 fps, or turn them into slow motion, with AI frame interpolation in your browser.Video MergerJoin video or audio files into one, in the order you choose.Video to GIFTurn MP4, MOV and WebM clips into looping GIFs.GIF MakerTurn images into an animated GIF or MP4 with speed, loop, crossfades and text.Subtitle GeneratorGenerate captions from speech in about 100 languages and export SRT, VTT or burned-in MP4.Subtitle EditorEdit, time, sync and convert SRT, VTT and ASS subtitles on a waveform.Screen RecorderRecord your screen, a window or a tab with webcam and microphone.Green Screen Video EditorRemove a green screen from video or photos and add a new background.TeleprompterRead a script at a steady pace with mirror mode and webcam recording.
Audio & music
Audio ConverterConvert audio to MP3, M4A, WAV, FLAC or OGG and trim it.Audio TrimmerCut audio files on a waveform, add fades and save as MP3 or WAV.Music MakerMake beats and songs with a drum machine, piano roll, synths and mixer.Sheet Music MakerWrite scores with lyrics and chords, play them back and export PDF, MusicXML or MIDI.Online PianoPlay an 88-key piano with keyboard, mouse, touch or MIDI and record it.Online GuitarStrum and pick a virtual guitar with chord shapes, tunings and capo.Online TunerTune guitar, bass, ukulele, violin or any instrument with your microphone.MetronomePrecise metronome with tap tempo, accents, subdivisions and a tempo trainer.White Noise GeneratorWhite, pink and brown noise plus nature sounds, with a mixer and sleep timer.Audio Noise RemoverRemove background noise from voice recordings and videos with AI.Loudness MeterMeasure LUFS, true peak and loudness range (EBU R128) and normalize audio.Speech to TextTranscribe audio and video in about 100 languages and export TXT, Word, SRT or JSON.Vocal RemoverRemove the vocals from a song or split it into vocals, drums, bass and other instruments with AI, in your browser.AI Music DetectorCheck songs for AI generation: Content Credentials, AI tags of Suno, Udio and other services, and sound analysis.Text to SpeechListen to any text read by natural AI voices and download MP3 or WAV.Voice RecorderRecord your voice with a live level meter and save MP3, WAV or WebM.
PDF EditorEdit text, add images, shapes and signatures, fill forms, redact and rearrange pages.Document CompareCompare two PDF, Word or text files word by word with a redline view.PDF to WordConvert PDFs into editable Word documents with real paragraphs, headings, lists, tables and pictures.Word to PDFConvert .docx files to PDF with selectable text, tables and images.Merge PDFCombine several PDFs into one file in the order you choose.Compress PDFMake PDFs smaller by recompressing the pictures inside.PDF to JPGTurn PDF pages into JPG, PNG or WebP images at the resolution you need.Image to PDFCombine JPG, PNG and other images into a single PDF.Split PDFSplit a PDF by page ranges, into single pages or every N pages.Rotate PDFRotate, delete and reorder PDF pages.OCRExtract editable text from photos and scanned PDFs.PDF to ExcelExtract tables from PDFs to Excel or CSV with real numbers, dates and merged cells.Sign PDFDraw, type or upload a signature and place it on any PDF page.PDF RedactorPermanently black out text, images and hidden data in PDFs.PDF PreflightCheck fonts, image resolution, color and bleed before printing.Bates NumberingStamp sequential Bates numbers across many PDF files.HTML to PDFTurn HTML into a PDF with real text and print styles.Text to PDFTurn plain text, logs or code into a clean PDF with selectable text.CSV to PDFTurn CSV and TSV files into a PDF table with the header on every page.Excel to PDFConvert Excel, ODS and CSV spreadsheets to PDF with columns fitted to the page.PDF to PowerPointTurn each PDF page into a slide with editable text boxes, movable pictures and the page's graphics.Unlock PDFRemove a known PDF password and printing or copying restrictions.PDF ReaderRead PDFs with thumbnails, outline, search and dark mode.PDF ImpositionMake booklets, n-up sheets and step-and-repeat layouts with printer's marks.
Business & writing
Bank Statement ConverterConvert PDF bank statements to Excel, CSV, OFX, QBO or QIF, with running-balance checks.Invoice GeneratorCreate invoices, quotes and receipts with exact tax math and PDF export.Invoice ScannerExtract vendor, VAT number, dates, totals and line items from invoices and receipts to Excel, CSV or JSON.Resume BuilderBuild a resume and cover letter with ATS-friendly templates.Document TranslatorTranslate Word, PowerPoint, Excel, PDF, HTML, Markdown and subtitle files in your browser while keeping their layout.Word CounterCount words, characters, sentences and paragraphs with reading time and keywords.Markdown EditorWrite Markdown with live preview, tables, math and diagrams; export PDF, Word or HTML.Grammar CheckerCheck English spelling, grammar and style and fix mistakes in one click.
Developer tools
Password GeneratorCreate strong random passwords and passphrases in your browser.JSON FormatterValidate, beautify and minify JSON with exact error positions and a tree view.Data Format ConverterConvert JSON, YAML, TOML, XML, CSV, INI and .env, and generate types.Base64 Encoder & DecoderEncode text and files to Base64 or data URIs and decode them back.URL Encoder & DecoderPercent-encode or decode URLs and edit query parameters in a table.Hash GeneratorMD5, SHA-256, SHA-3, BLAKE3, CRC32 and more for text and files, with HMAC.UUID GeneratorGenerate UUID v4, v7 and v1, ULIDs and Nano IDs in bulk.Regex TesterTest JavaScript regular expressions with live highlighting and a plain-English explanation.SQL FormatterFormat or minify SQL for many dialects.JWT DecoderDecode JSON Web Tokens, check expiry, verify signatures and sign test tokens.Unix Timestamp ConverterConvert epoch time to dates in any time zone and back, plus a cron explainer.
Data, maps & science
Data ExplorerOpen big CSV, Excel, JSON, Parquet and SQLite files; filter, pivot, chart and run SQL.GIS ViewerOpen shapefiles, GeoJSON, KML and GPX on a map and convert between them.DICOM ViewerView DICOM images and series with window/level, measurements, MPR, a tag browser and anonymization.Chemical Structure DrawerDraw molecules and get SMILES, molecular weight, logP and a 3D view.Plot DigitizerExtract data points from chart images and PDF figures.Curve Fitting & StatisticsFit IC50 and custom curves, run t-tests and ANOVA, export publication graphs.
Calculators & timers
Loan CalculatorMonthly payment, total interest, extra payments and a full amortization schedule.Percentage CalculatorPercent of a number, percentage change, increase, decrease and difference.Age CalculatorExact age in years, months and days, days lived and next birthday.BMI CalculatorBody mass index in metric or US units with WHO categories and a healthy range.Scientific CalculatorType full expressions with trig, logs, powers, roots and factorials.GPA CalculatorUS 4.0 scale GPA with credits, weighted honors/AP courses and cumulative GPA.Online TimerCountdown timers with alarm, presets and notifications.StopwatchAccurate stopwatch with laps, splits, full screen and CSV export.Spin the WheelFair random picker wheel with weights and shareable links.Random Number GeneratorUnbiased random numbers in any range, with or without repeats.World ClockCurrent time in cities worldwide and a meeting planner across time zones.Pomodoro TimerFocus sessions and breaks with a task list and daily stats.Coin FlipFair heads or tails with a 3D coin, tally and streaks.Dice RollerRoll d4 to d100 or any notation like 3d6+2 and see the odds.
Whiteboards & diagrams
Games & learning
MinesweeperClassic Minesweeper with no-guess boards, hints and a daily board.2048Slide and merge tiles to reach 2048, with undo and several board sizes.SolitaireKlondike solitaire with draw 1 or 3, hints, undo and winnable deals.SnakeClassic snake with walls, wrap-around and swipe controls.SudokuSudoku with explained hints, a daily puzzle, a solver and printable PDFs.Block PuzzleRotate falling blocks and clear lines, with hold and ghost piece.Typing TestMeasure your typing speed and accuracy and track progress.ChessPlay chess against the computer or a friend, with clocks, hints and PGN.Periodic TableInteractive periodic table with trends and a quiz.
3D printing, CAD & electronics
GLB to STL ConverterConvert GLB, OBJ, FBX, STEP and other 3D models to STL, 3MF, OBJ, GLB or PLY, with units, orientation and print repair.3D Model ViewerOpen GLB, STL, OBJ, FBX, 3MF and STEP files in your browser.Image to STL (Lithophane)Turn a photo into a 3D-printable lithophane or relief: flat, curved, cylinder lamp, heart or round, as STL or 3MF.Image to DXFTrace images or type text into closed DXF, SVG or PDF outlines at real size for laser cutting and CNC.DXF ViewerOpen DXF drawings with layers, measuring and drawing info, and export them to SVG, PDF or PNG.Gerber ViewerCheck Gerber and Excellon drill files with a realistic top and bottom PCB render, layer view, measuring and drill table.
Crafts & laser
Sticker MakerAdd a die-cut border around a design and export a transparent sticker PNG.Perler Bead Pattern MakerTurn a picture into a bead, cross-stitch, diamond painting or pixel art pattern with a printable chart.Photo to Laser EngravingDither photos for laser engraving with material presets and exact DPI.
QR codes, barcodes & fonts
Device tests
Keyboard TestCheck every key, rollover, ghosting and stuck keys.Mouse Test & CPSTest buttons, double clicks, click speed and polling rate.Dead Pixel TestFull-screen colors and patterns to find dead or stuck pixels.Mic TestCheck your microphone level, spectrum and noise, and play it back.Speaker TestTest left/right channels, frequency sweep, bass and polarity.Webcam TestPreview your webcam and check resolution, frame rate and lighting.
Guides and tutorials
All guides →How to compress a PDF without losing qualityWhy PDFs get big, which compression level to pick for email, screen or print, and how to shrink a PDF in your browser without uploading it or blurring the text.Updated · 7 min readHow to compress images without visible quality lossWhich quality to use for JPG and WebP, how PNG shrinks with a color palette, and why resizing saves the most. Compress batches in your browser, with no upload.Updated · 6 min readHow to convert JPG and other images to PDFTurn photos, scans and screenshots into one PDF: pick page size, margins and compression, keep the file small, and do it on any device without uploading.Updated · 5 min readHow to merge PDF files for free, without uploading themCombine PDFs in your browser: reorder them, keep only some pages with ranges like 1-3, 5, and download. Plus the built-in ways on Mac, Windows and Linux.Updated · 6 min read