Free online tools that keep your files on your computer

206 free tools for PDFs, Office files, photos, video, audio and data. No ads and no sign-up, and nearly all of them work inside this tab, so your files never leave your machine. Why that matters.

Built by John McMillan, a senior full-stack engineer who is open to remote roles. See what I can do for your team.

Drop any file here to open it

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PDF, Word, PowerPoint, Visio, Project, mailboxes, CAD drawings, videos and hundreds of other types. The right tool opens it; nothing is uploaded.

Or find the tool by file type

PDF27 toolsEdit, convert, sign and compress PDFsOffice & documents29 toolsOpen Word, PowerPoint, Visio, Project and moreEmail, chats & backups15 toolsRead mailboxes, chat exports and phone backupsPhotos & images22 toolsCompress, convert, restore and clean up picturesVideo22 toolsCut, repair, convert and add to videosAudio21 toolsTrim, join, clean up and transcribe soundText & writing11 toolsMarkdown, OCR, word counts and fixing textDesign, 3D & maps22 toolsCAD, 3D models, scans, routes, fonts and codesData & spreadsheets27 toolsCSV, Excel, databases and science formatsDeveloper & learning10 toolsCode, hashes and IDs, plus typing and maths practice
the most used tools
Video RepairFix an MP4 or MOV that stopped recording before it finished and won't play, using a working clip from the same camera.Equation EditorClick symbols, find one by name, start from a library of common formulas or type LaTeX, then paste the equation into Word, Google Docs or a web page.Video CutterTrim a video, cut parts out, join clips, remove the sound or fix the rotation without re-encoding, so nothing loses quality.MPP ViewerOpen a Microsoft Project .mpp file without Project: the task list, Gantt chart and resources, saved as Excel, CSV, XML or PDF.DAV to MP4Turn CCTV recordings (Dahua .dav, Hikvision, raw .264) into MP4s that play anywhere, without re-encoding.CorelDRAW ViewerOpen a .cdr file without CorelDRAW and save each page as SVG, PNG or PDF, all in your browser.Access Database ViewerOpen an .mdb or .accdb without Microsoft Access - on a Mac too - browse its tables and save them as Excel, CSV or SQLite.SketchUp ViewerOpen a SketchUp .skp model without SketchUp, switch its tags on and off, and save it as GLB, OBJ or STL.

New

the latest additions
Excel to JSONNewTurn a spreadsheet into JSON: header row as keys, dates as ISO text, dotted headers as nested objects.Guitar TunerNewTune a guitar, bass, ukulele or violin with your microphone: needle to the cent, drop D, DADGAD, open tunings and chromatic.JSON to CSVNewConvert JSON or JSON Lines to CSV with nested data flattened, your separator and a UTF-8 mark for Excel.JSON to ExcelNewTurn JSON or JSON Lines into an Excel sheet: nested objects as columns, lists as rows or sheets, with a preview.MetronomeNewAn accurate online metronome: 20-300 BPM, tap tempo, time signatures, accents, subdivisions and a speed trainer.Mic TestNewCheck your microphone works: live level meter, a record-and-play-back test and a speaker test.MP3 CutterNewCut the part you want out of an MP3, M4A, WAV, FLAC or OGG file on its waveform, with fades, and save it as MP3.MP4 to MP3NewTake the sound out of an MP4, MOV, WebM or MKV video as an MP3 at up to 320 kb/s, all of it or just a part.

All tools

Text & writing 11

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