Free online tools that keep your files on your computer

205 free tools to repair and convert videos, open Office, Project and design files, write equations, and work with photos, PDFs, 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.

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Videos, Word, Excel, Project, Visio, CAD and 3D drawings, mailboxes, PDFs and hundreds of other types. The right tool opens it; nothing is uploaded.

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Video21 toolsCut, repair, convert and add to videosOffice & documents35 toolsOpen Word, PowerPoint, Visio, Project and moreDesign, 3D & maps26 toolsCAD, 3D models, scans, routes, fonts and codesDeveloper & learning15 toolsCode, hashes and IDs, plus typing and maths practiceData & spreadsheets30 toolsCSV, Excel, databases and science formatsPhotos & images29 toolsCompress, convert, restore and clean up picturesEmail, chats & backups15 toolsRead mailboxes, chat exports and phone backupsPDF15 toolsEdit, convert, sign and compress PDFsAudio20 toolsTrim, join, clean up and transcribe soundText & writing18 toolsMarkdown, OCR, word counts and fixing text
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.Extract Hardcoded SubtitlesRead subtitles burned into a video's picture with OCR, check and edit them, and save an SRT or VTT file.MPP ViewerOpen a Microsoft Project .mpp file without Project: the task list, Gantt chart and resources, saved as Excel, CSV, XML or PDF.SketchUp ViewerOpen a SketchUp .skp model without SketchUp, switch its tags on and off, and save it as GLB, OBJ or STL.Video CutterTrim a video, cut parts out, join clips, remove the sound or fix the rotation without re-encoding, so nothing loses quality.CorelDRAW ViewerOpen a .cdr file without CorelDRAW and save each page as SVG, PNG or PDF, all in your browser.3D Model ViewerOpen a GLB, USDZ, FBX, OBJ, STL, 3MF or DAE model, orbit around it, measure it, and convert it to GLB, STL, OBJ or USDZ.

New

the latest additions
Equation Editor 3.0 ConverterNewTurn old Equation Editor 3.0 and MathType equations in a Word document into Word equations you can edit again.Math to BrailleNewTurn an equation into Nemeth or UEB braille, with alt text and MathML for the same equation.Battery Report ViewerNewOpen the Windows battery report from powercfg and see how much charge your laptop battery still holds, in plain words, with charts.ChatGPT Math to WordNewPaste a ChatGPT, Claude or Gemini answer and get a Word document where every formula is an equation you can edit.Crash Dump ViewerNewOpen blue screen minidumps (.dmp) to see the stop code in plain words, the drivers loaded and the one most likely involved.Embroidery ViewerNewOpen .pes, .dst, .jef and other embroidery files without embroidery software, watch them sew out, and save a picture or a DST copy.Skin Editor for MinecraftNewPaint a 64 ร— 64 player skin on a 3D figure or the flat picture, both layers, classic or slim arms, and save the PNG.SOLIDWORKS ViewerNewSee the preview picture, version and properties inside a .sldprt, .sldasm or .slddrw file without SOLIDWORKS, on a Mac too.

All tools

Text & writing 18

All 18 on one page โ†’

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