AVMint

Safe Video Converter That Doesn't Upload Your Files

Most online converters work by uploading your file to a server, processing it there, and sending it back. That means your wedding video, medical recording, or unreleased project is sitting on someone else's disk. AVMint takes a different approach: the entire ffmpeg engine runs inside your browser via WebAssembly.

Load AVMint and disconnect if you want
1

Load AVMint and disconnect if you want

Open AVMint's Video Convert page. Once it loads, you can literally turn off your Wi-Fi — the conversion will still work, because no network call is needed for processing.

2

Choose your file and format

Drop the video and pick the output format. The file is read into browser memory only; the File API never exposes the raw bytes to the network layer.

3

Convert locally and save

Click Convert. ffmpeg.wasm processes the video on your CPU, the result is held as a Blob in memory, and the download is triggered from that Blob — start to finish, the data stays on your machine.

Tip

You can confirm this yourself by opening DevTools, switching to the Network tab, and watching during conversion. You'll see no upload requests at all.

FAQ

How do I know AVMint isn't secretly uploading my video?

Open the browser's Network tab in DevTools before converting. You'll see only the initial page load and the ffmpeg-core asset fetch — no POST requests with your file. The source is also viewable.

Is there a file size limit since it runs in the browser?

Browser memory is the only constraint. On modern devices, files of several GB work fine. There's no artificial cap like Convertio's 100MB or Kapwing's 250MB free tier.

Files never leave your device

Load AVMint and disconnect if you want