How to Convert WebM Videos to MP4
Here's how to convert WebM videos to MP4. With videoconverter.tokyo, there's nothing to install — you can convert right from your web browser.
What is WebM?
WebM is an open video format developed largely by Google, typically using VP8/VP9 video and Vorbis/Opus audio. It's widely used for video delivery on websites and by screen-recording tools.
Why convert to MP4?
WebM plays fine in major browsers, but some smartphones' default video players, editing software, and social media platforms expect MP4. Converting to MP4 makes the video usable in more places.
What happens when you convert with videoconverter.tokyo
When you upload a WebM file to videoconverter.tokyo, the video is re-encoded to H.264 and the audio to AAC, then output as MP4. You can trim and resize the video at the same time as converting it.
Size and length limits
When signed in, each video can be up to 4GB with no daily conversion limit (up to 500MB and 3 conversions per day without signing in; no limit on video length). Uploaded videos are automatically deleted within about an hour of being created.
Steps to convert with videoconverter.tokyo
- Select your WebM file.
- If needed, set a trim range or resize the video.
- Click "Create Edited Video" and download the MP4 once it's done.
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Frequently Asked Questions
Yes. You can upload a WebM file directly, and it will be output as MP4 (H.264/AAC).
Yes. You can upload a WebM file with VP8/VP9 video and Vorbis/Opus audio and convert it to an MP4 with H.264/AAC. We've confirmed this works with an actual VP9 video / Opus audio WebM file.
Yes. When converting WebM to MP4, you can trim and resize the video in the same step.
WebM plays fine in major browsers, but some smartphones, editing software, and social media platforms expect MP4. Converting to MP4 makes it easier to use in more places.
When signed in, up to 4GB per video with no daily conversion limit; without signing in, up to 500MB and 3 conversions per day (no limit on video length).
The uploaded WebM file and the converted MP4 file are automatically deleted within about an hour of being created.