Video conversion
MP4, WebM, MOV, GIF, or audio only as MP3. Input MP4, MOV, AVI, WebM, MKV and more. Quality, mute, rotate. In your browser via FFmpeg.
Runs in your browser
Files are processed on your computer and are not uploaded.
MP4 · MOV · MKV · AVI · WEBM→WEBM · MP4· batch
Convert video to WebM, MP4, GIF or MP3 in your browser
Convert video from a phone or camera into the format you need for a website, a presentation or social media. The tool runs FFmpeg in your browser, so the video never leaves your computer. It reads MP4, MOV, MKV, AVI and WebM and handles several files in a row.
When it helps
Video for your own site
WebM is often smaller than MP4 and suits background loops. Keep an MP4 fallback for older devices.
Compatibility
MP4 plays on almost every device, social network and e-mail client.
Short loop or audio only
GIF works for loops of a few seconds; MP3 when you only need the sound.
How it works
- 01Drop the video into the window.
- 02Choose the output format and optionally lower the resolution or bitrate.
- 03Start the conversion and download the result. Longer videos take longer depending on your computer.
Frequently asked questions
Why is the conversion slow?
It runs on your processor, not on a server. Speed depends on length, resolution and computer performance, and is slower on phones.
Will the video lose quality?
Every conversion re-compresses. With the same resolution and a sensible bitrate you usually cannot tell; lowering the resolution does reduce detail.