CrustifyWebM WebM video
An open video format made for browsers, using VP9 or AV1 video and Opus sound. Common for screen recordings and downloads from the web, but many editors, phones and messaging apps don't take it.
Video · Windows 10 and 11
Convert WebM to MP4 on Windows, offline.
Screen recorders, browsers and video downloads often give you WebM. Video editors, PowerPoint, WhatsApp and iPhones are much happier with MP4.
- Nothing is uploaded
- Many files at once
- No sign-up
- No other software needed
How to convert WebM to MP4
- Select your WebM filesIn File Explorer or on the desktop. One file, or a hundred.
- Start dragging, then tap ShiftThe Convert wheel opens right under your cursor, with every format this file can become.
- Drop on MP4Crustify converts on your PC and saves the result next to the original. That's it.
First time? Download Crustify and install it. It waits in the tray, using about 3 MB of memory, until you drag a file.
Convert WebM
Convert to MP4
What you get
- VP9 and AV1 video is converted to H.264, which plays everywhere, using your graphics card when it can.
- Opus sound is converted to AAC at 192 kbps.
- Your original WebM stays as it was.
- Each MP4 is saved next to its original, with the same name.
- Your original file is never changed. If the new name is taken, Crustify adds (1), (2) and so on.
- Long files show their progress in a small panel, and you can cancel at any time.
About the formats
MP4 MPEG-4 video
The video format that plays practically everywhere: phones, TVs, browsers, WhatsApp, YouTube and every editor. With H.264 video and AAC sound inside, it is the safest choice for sharing.
Questions
WebM to MP4, answered.
Why can't my video editor open WebM?
Many editors don't support the VP9 and AV1 codecs WebM uses. H.264 in MP4 is supported by all of them.
Will the MP4 be bigger?
Often a little, because H.264 is less efficient than VP9 or AV1. The picture stays as good as the original.
Is Crustify free?
You can use everything free for 7 days, with no key or card. After that it's ₹49 once for a lifetime licence on up to 2 PCs. No subscription.
Convert WebM to MP4 without uploading a thing.
Crustify converts images, video, audio, PDFs and documents on your PC, offline.