File Converter
FileFlip converts files entirely inside your browser, using WebAssembly builds of ImageMagick, FFmpeg, Pandoc, MuPDF, Assimp and libarchive. Nothing is uploaded to a server: your file is read off your own disk, converted on your own machine, and saved back by the browser. There is no file-size limit and no account.
How do I convert a file?#
- Drop your files onto the converter at the top of this page, or click it to pick them from your computer. A mixed drop of photos, videos and documents is grouped by type.
- Pick the format you want for each group. FileFlip downloads the engine that conversion needs, once, and your browser caches it for next time.
- Conversion starts the moment you pick a format, then you download the results. One file downloads on its own; several arrive together as a ZIP.
Is it safe to convert files online?#
Yes, because nothing is uploaded. FileFlip converts files inside the browser tab you already have open, using WebAssembly builds of the same engines a desktop converter would install. Your file is read from your own disk into the page's memory, and no request carrying it is ever made.
You do not have to take that on trust. Open your browser's network panel, run a conversion, and you will see the engine come down and your file go nowhere. There is no upload, no server-side copy, no retention window, and no account tied to what you converted.
How FileFlip works lists every engine, its version and its download size, and shows how to check for yourself that nothing leaves your machine.
What can FileFlip convert?#
FileFlip handles 254 file formats and 7,478 conversions between them, across nine families. Start with the one your file belongs to.
- Image ConverterHEIC, JPG, PNG, WebP, AVIF and camera raw from every major camera brand.53 formats · 3,062 conversions
- Audio ConverterMP3, WAV, FLAC, AAC, M4A and OGG, with WebCodecs doing the work wherever your browser can.16 formats · 180 conversions
- Video ConverterMP4, MOV, MKV, WebM and AVI, plus pulling the audio out of a video as MP3.25 formats · 754 conversions
- Document ConverterPDF, DOCX, ODT, EPUB, Markdown, LaTeX and HTML, through Pandoc and MuPDF.47 formats · 2,266 conversions
- Archive ConverterZIP, 7z, RAR, TAR, ISO and the compressed tarballs, repacked without touching the files inside.22 formats · 209 conversions
- 3D Model ConverterFBX, OBJ, STL, glTF, GLB and COLLADA, through the same importer most 3D applications use.68 formats · 897 conversions
- Font ConverterTTF, OTF, WOFF, WOFF2, EOT and SVG fonts, mostly with nothing to download.6 formats · 25 conversions
- Data ConverterJSON, CSV, TSV, YAML, XML and TOML, parsed and rewritten with no engine to fetch.6 formats · 30 conversions
- Subtitle ConverterSRT, WebVTT, ASS, SSA, SUB and TTML, timings and text intact.11 formats · 55 conversions
Questions about FileFlip#
What is FileFlip?
FileFlip is a free file converter that runs inside your web browser. It covers 254 formats and 7,478 conversions between them, across images, audio, video, documents, archives, 3D models, fonts, data files and subtitles.
FileFlip does the work on your own device. There is no account to create and no cap on the size of the file you convert.
Does FileFlip upload my files to a server?
FileFlip never uploads your files. There is no upload endpoint in the site and no storage behind it.
Your file is read off your own disk into the tab, converted in the page's memory, and written straight back to your downloads folder. The only copy of it that ever exists is the one on your machine.
How does FileFlip convert files without uploading them?
FileFlip runs the conversion software itself in your browser, compiled to WebAssembly. ImageMagick handles images, FFmpeg and mediabunny handle audio and video, Pandoc and MuPDF handle documents, libarchive handles archives, and Assimp handles 3D models.
When you pick a conversion, your browser downloads the engine that conversion needs, once, and caches it for next time. Only the engine comes down the wire. Every engine and its download size is listed on the how it works page.
How can I verify that FileFlip is not uploading my files?
FileFlip makes a claim you can check in about thirty seconds. Open your browser's network inspector, press record, then convert a file. You will see the page assets and one engine download, and nothing in that list carries your file.
For a stronger test, disconnect from the internet once the page has loaded and convert something anyway. The conversion still runs, because everything it needs is already in the tab.
What is the largest file FileFlip can convert?
FileFlip sets no size limit. The ceiling is the memory your browser tab can use, since the file is held on your own device rather than on a server. Desktop browsers handle multi-gigabyte video comfortably. Phones have far less headroom, and a very large video can exhaust a mobile browser's memory before the conversion finishes.
What file formats does FileFlip support?
FileFlip supports 254 formats and 7,478 conversions between them, covering images, audio, video, documents, archives, 3D models, fonts, data files and subtitles. Some formats can be read and not written, such as camera RAW files and RAR archives, which is why the conversion total is smaller than every format paired with every other one. Every supported conversion is listed here.
Why is FileFlip free?
FileFlip is free because your device does the work. No conversion servers run behind it, so there is no CPU time to rent and no bandwidth bill that grows with the number of files you convert. Serving a few static pages and a set of wasm binaries costs about the same whether ten people convert something today or ten thousand do, which is why FileFlip has no paid tier and no daily conversion quota.