Free online tools that keep your files on your computer

155 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

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

PDF22 toolsEdit, convert, sign and compress PDFsOffice & documents19 toolsOpen Word, PowerPoint, Visio, Project and moreEmail, chats & backups12 toolsRead mailboxes, chat exports and phone backupsPhotos & images20 toolsCompress, convert, restore and clean up picturesVideo16 toolsCut, repair, convert and add to videosAudio13 toolsTrim, join, clean up and transcribe soundText & writing7 toolsMarkdown, OCR, word counts and fixing textDesign, 3D & maps20 toolsCAD, 3D models, scans, routes, fonts and codesData & spreadsheets16 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
IGES ViewerNewOpen an .igs or .iges CAD file online: measure it, cut a section, see its unit and author, and save it as STL, OBJ or GLB.BPM ChangerNewSee a song's estimated BPM, type the BPM you want, and save it at that tempo with its key unchanged.CPAP Data ViewerNewOpen a ResMed CPAP SD card or EDF sleep recording: nights, hours of use, flow, pressure, leak and the machine's events.Extract Hardcoded SubtitlesNewRead subtitles burned into a video's picture with OCR, check and edit them, and save an SRT or VTT file.Fix Audio SyncNewMove a video's sound earlier or later to the millisecond, hear it in step, and save without re-encoding the picture.InfoPath Form ViewerNewOpen InfoPath .xsn templates and filled-in .xml forms without InfoPath, and turn a library of forms into Excel or CSV.Key ChangerNewSee a song's estimated key, pick the key you want, and save it there at the same speed, with voices kept natural.MBOX to PST ConverterNewTurn a Gmail Takeout, Thunderbird or Apple Mail mailbox into an Outlook .pst, one folder per mailbox or Gmail label.

All tools

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