Anyfile is in beta, so a few things may not work perfectly yet. Tell us what you find
Free converter
Anyfile converts an MP4 video to a WebM video for free, right in your browser: the file is never uploaded.
Files are converted in your browser and never uploaded. By using Anyfile you agree to the Terms of Use.
| Picture | Copied as it is when it fits; otherwise re-encoded by your browser at the same size and frame rate |
|---|---|
| Sound | The first sound track is kept |
| Subtitles and chapters | Not carried over yet |
| File size | Usually smaller: WEBM compresses more tightly than MP4 |
When to use WEBM: Video embedded in web pages, and screen recordings made in the browser.
Open the file in the video editor to choose before downloading:
.mp4
The MPEG-4 Part 14 container, based on Apple’s QuickTime file format. It commonly holds H.264 or HEVC video with AAC audio, plus subtitles and chapters.
Sharing and streaming video on phones, social media, websites and TVs.
Opens in every browser and phone, QuickTime, VLC, Windows Media Player
About MP4 files.webm
An open, royalty-free video format launched by Google in 2010. Based on Matroska, it carries VP8, VP9 or AV1 video with Vorbis or Opus audio.
Video embedded in web pages, and screen recordings made in the browser.
Opens in Chrome, Firefox, Edge, Safari, VLC
About WEBM filesGoing the other way? Convert WEBM to MP4
Everything that converts to WEBM
Need to change it first? Open the video editor
Drop your MP4 file on this page, or choose it. Anyfile converts it on your device in a moment and the WEBM downloads straight away. To change it first, open it in the video editor.
No. The file is read and converted by your own browser, and nothing is sent to a server. You can check: open your browser’s developer tools, go to Network, and convert a file. No upload appears.
WEBM is a compressed format, and Anyfile saves at high quality, so the difference is very hard to notice.
Yes. Drop them together and you get one ZIP with every WEBM inside.