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Video

Free Video Format Converter

Convert a video to MP4, WebM, or MOV right in your browser. No signup, no server upload.

What this does: converts your video into MP4, WebM, or MOV, entirely in your browser using a WebAssembly build of FFmpeg. It is free, with no signup and no server upload: the file never leaves your device. The first run downloads a ~31MB engine (cached afterward, instant on later visits); because it runs single-threaded in the tab, it is slower than a desktop app, especially on large files or mobile.

Click to select a video or drag and drop it here.

Frequently asked questions

Is this video converter free, and is my video uploaded anywhere?

Yes, it is 100% free with no signup, and no, your video is never uploaded. Conversion runs entirely inside your browser tab using a WebAssembly build of FFmpeg, so the file never leaves your device.

Why does the first conversion take longer to start?

The first time you use this tool, your browser downloads a ~31MB WebAssembly video engine (FFmpeg compiled to run in the browser). It is cached afterward, so later visits and later conversions start instantly.

Which formats can I convert between, and how fast is it?

You can convert most common source videos into MP4, WebM, or MOV. Processing runs single-threaded in the browser tab, so it is slower than a native desktop converter, especially for large files or on mobile devices.