Convert WebM to MP4
Re-encodes WebM (VP8/VP9 + Opus) into standard, universally-playable H.264/AAC MP4.
Drop a file to convert to MP4
or click to browse
How it works
Drop your .webm file in — usually a screen recording or a download from a site that serves WebM by default.
WavyVid re-encodes the video to H.264 and the audio to AAC, the combination virtually every device and platform supports.
Download the MP4 — it'll play in editors, phones, and platforms that don't handle WebM well.
WebM is common from browser-based screen recorders and some download sites, but plenty of video editors, older devices, and platforms either don't support it well or re-encode it themselves anyway. Converting to MP4 upfront avoids compatibility surprises later.
Frequently asked questions
Why doesn't my WebM file play in [editor/device]?
WebM uses VP8/VP9 video and Opus/Vorbis audio codecs, which aren't universally supported the way H.264/AAC MP4 is. Converting fixes this at the source.
Will I lose quality converting WebM to MP4?
There's some quality loss any time you re-encode (this isn't a simple repackaging, since the codecs themselves differ), but WavyVid uses a high-quality, visually-lossless-feeling setting by default.
Does the converted MP4 keep the audio?
Yes, audio is re-encoded to AAC and kept in sync with the video automatically.
Can I then compress the MP4 further?
Yes — run the output through the compress-to-size tool afterward if you need a specific target size.