Video converter
Your files are processed on your device. We never upload them.
Video is read and written with Mediabunny, under the Mozilla Public License. Browsers without their own AAC encoder use FFmpeg's, under the GNU LGPL.
How to video converter
- 01A ▸Choose your videos, or drop them on the page.
- 02A ▸Pick the format to convert to. Under each video, the page says whether it will be copied in seconds or re-encoded, and roughly how long that takes.
- 03A ▸Select Convert, then download each result.
Questions
Which formats can it convert?
It reads MP4, MOV, M4V, MKV, and WebM, and writes MP4, WebM, MOV, MKV, MP3, and M4A. Older formats such as AVI, WMV, FLV, MPEG, and 3GP can't be converted here yet; the free apps VLC and HandBrake convert them on a computer.
Are my videos uploaded?
No. Your files are processed on your device. We never upload them.
Why are some conversions instant and others slow?
When the new format can hold the video's picture and sound as they are, they are copied into the new file, which takes seconds. Otherwise they are re-encoded with your device's own video encoder, which takes a good fraction of the video's length, or longer on a phone.
Can I convert to GIF?
Not on this page. A GIF is a different kind of file (a picture that moves, with no sound and only 256 colours).
Is there a file size limit?
No daily limit and no watermark. Files over 100 MB show a warning first because they can be slow on phones, and you can go ahead anyway. Videos are read and written in pieces, so long videos don't need to fit in memory.