MP4 to WEBM converter
Convert MP4 to WEBM for free, with no sign-up and no paywall after upload.
- Where it runs
- Our server, files deleted in 60 min
- Free allowance
- 25 files a day, up to 200 MB each
- Typical time
- Seconds to re-wrap; about the playing time to re-encode
- Sign-up
- Not needed
What happens to your MP4
Otherwise the video is re-encoded with settings that look the same as the original at a sensible file size. Large videos take roughly as long as they play.
This conversion runs on our server. Your file is deleted within 60 minutes, and you can delete it yourself as soon as you have downloaded the result.
How to convert MP4 to WEBM
- Choose your file Tap Choose files and pick the MP4 file, or drop it onto the page. You can add several at once.
- Convert to WEBM Tap Convert. The file is sent over an encrypted connection and converted on our server.
- Download Tap Download to save the WEBM file. It is deleted from our server within 60 minutes, or straight away if you tap Delete.
What is an MP4 file?
The universal video format. MP4 with H.264 plays on every phone, browser, TV and social network.
Every phone, browser and media player plays MP4.
What is a WEBM file?
Google's open web video format (VP9 or AV1). Screen recorders and browsers produce it; iPhones and editors often cannot open it.
Chrome, Firefox, Edge and VLC play WEBM.
Questions
Is converting MP4 to WEBM free?
Yes. You can convert up to 25 files a day on our server for free, each up to 200 MB, with no sign-up. The limit is shown before you upload, and we never ask you to pay to download a file you have already converted.
Is it safe to convert my MP4 files here?
Yes. Files travel over an encrypted connection, are processed on our own server, and are deleted within 60 minutes. Nobody looks at them, and you can delete them yourself straight after downloading.
How long does MP4 to WEBM take?
Seconds to re-wrap; about the playing time to re-encode. Bigger files take longer, and you can watch the progress on each file.
Can I convert MP4 to WEBM on my iPhone or Android phone?
Yes. The converter works in Safari, Chrome and any modern browser. Tap Choose files, pick from Photos or Files, and download the result to your phone.
How do I open a WEBM file?
Chrome, Firefox, Edge and VLC play WEBM.