About FileFlip
FileFlip is a free file converter that runs entirely inside your web browser. It handles 254 file formats and 7,478 conversions between them, and it does the work on your own device, so the file you convert is never uploaded to a server.
- File formats
- 254
- Conversions
- 7,478
- Files uploaded
- 0
- Cost to use
- $0
What FileFlip actually does#
FileFlip converts a file from one format to another using conversion software compiled to WebAssembly and shipped to your browser. You choose a file and a target format, your browser downloads the engine that conversion needs, and the conversion runs in the tab.
The engines are the ones you would find behind a desktop tool: ImageMagick for images, FFmpeg for audio and video, Pandoc and MuPDF for documents, libarchive for archives, Assimp for 3D models. Every engine, and what it costs you to download, is listed on the how it works page.
Nothing you convert leaves your device#
FileFlip never uploads your files. There is no upload endpoint, no conversion queue and no file storage anywhere in FileFlip, so there is nothing that could leak your documents, be subpoenaed, or be sold.
There is nowhere to upload to
The file is read from your disk into the browser tab, converted there, and written back out as a download. FileFlip has no server that touches it.
You can check this yourself
Open your browser's network inspector, start recording, and convert a file. You will see the page load and one engine download. Nothing in that list carries your file.
It works with the internet off
Turn off your connection once the page has loaded and convert something anyway. It still works, because everything the conversion needs is already in the tab.
What FileFlip can convert#
FileFlip supports 254 formats in nine categories, and 7,478 valid conversions between them. A conversion is valid when FileFlip can read the source format and write the target format, which is why the numbers below are not simply every format times every other format. Camera RAW files can be read but never written, for example, and RAR archives can be opened but not created.
- Image Files53 formats3,062 conversionsImageMagick
- Documents47 formats2,266 conversionsPandoc, MuPDF
- 3D Models68 formats897 conversionsAssimp
- Video Files25 formats754 conversionsWebCodecs, FFmpeg
- Archives22 formats209 conversionslibarchive
- Audio Files16 formats180 conversionsWebCodecs, FFmpeg
- Subtitles11 formats55 conversionsFFmpeg
- Data Files6 formats30 conversionsjs-yaml, papaparse
- Fonts6 formats25 conversionsfonteditor-core
Images and documents convert into each other as well as within their own category, which is where most of that total comes from. The complete list of supported conversions is here.
How FileFlip is free if nothing is uploaded#
FileFlip is free because your device does the expensive part. A conventional online converter pays for CPU time, temporary storage and bandwidth in both directions on every single file, which is why those services meter you with daily conversion limits and file size caps. FileFlip has none of those costs. Serving static pages and a set of wasm binaries from a CDN costs roughly the same whether ten people convert a file today or ten thousand do.
As of August 2026, FileFlip has no paid tier and runs no ads. It uses Google Analytics to count page views, which is described in the privacy policy. If the funding model ever changes, this page changes with it.
Who builds FileFlip#
FileFlip is built and maintained by one developer. There is no team and no investor, and the site is small enough to run out of pocket.
Until August 2026 this page said something else. It described a founding year, a large team, and a file-handling policy involving servers. None of that was ever true of FileFlip, which has never had a team and has never had a server that touches your files. It was template copy nobody rewrote, and correcting it is why this page reads the way it does now.
Why FileFlip exists#
Converting a file should not involve handing it to a stranger. The usual way to turn a HEIC photo into a JPG is to upload it to a website you have never heard of, which keeps a copy for some number of hours and asks you to trust a sentence in its footer. That is a bad trade for a tax return, a passport scan, a medical form or an unreleased video.
Browsers got good enough to remove the trade entirely. WebAssembly runs ImageMagick and FFmpeg at close to native speed inside a tab, so the conversion can happen where the file already lives. FileFlip is that idea applied to every format it could reach.
How to get in touch#
Email [email protected] for bug reports, format requests, privacy questions and anything else.
Last updated .
Convert something
Pick a file and a format. It runs here, in this tab.