Convert MP4 to WebM Online
Create open-standard videos for the web. Convert MP4 to WebM for excellent compression and royalty-free usage in HTML5 players.
MP4 → WEBM
Why Convert MP4 to WebM?
WebM is an open, royalty-free format developed for the web. Unlike MP4 (H.264), it has no patent licensing fees for commercial use.
It offers comparable or better quality than MP4 at smaller file sizes, saving you money on hosting bandwidth.
How to Convert MP4 to WebM
- Upload MP4 file.
- We convert it to WebM format.
- Download your free video file.
MiConvert MP4 到 WEBM 的主要功能
- Convert MP4 videos to WEBM format online
- Support for common video resolutions
- Fast cloud-based video processing
- No software download required
- Works on desktop and mobile browsers
Frequently Asked Questions
Is quality good?
Yes, VP9/AV1 codecs inside WebM are very efficient and look great even at low bitrates.
Does it play on iPhone?
Modern iPhones (iOS 14+) support WebM playback in Safari, though support in other apps varies.
Is it free?
Yes, completely free.