WEBM to MP4
Upload a WEBM file and download it as MP4. Free to start.
- Sent over HTTPS · link expires in 24 h
How it works
- Step 1:
Drop the WEBM file on the orange block above, or press “Choose WEBM”.
- Step 2:
Press “Convert to MP4”. The block shows the progress while the server converts the file.
- Step 3:
Press “Download” to save the MP4 file. On Free the link works for 24 hours.
How WEBM to MP4 conversion works
WEBM is a video format: it packages VP8/VP9 or AV1 video with Vorbis/Opus audio in a royalty-free container designed for web streaming. MP4 is a video format that packages H.264 or H.265 video with AAC audio in a container format widely supported across every platform and device. This conversion changes the file's encoding, compression method, and supported feature set. When the source codecs already match the target container the streams are copied without re-encoding (zero quality loss); otherwise the video is re-encoded at a configurable quality. Converting between these two formats is common when the source application does not support MP4 natively or when the target platform only accepts MP4. 1converter processes this conversion server-side using open-source tools. Files are transferred over HTTPS, converted on secure cloud servers, and returned through a private download link that expires after 24 hours on Free.
Quality levels for WEBM → MP4
| Level | File size | Speed |
|---|---|---|
| Low qualitySmallest file, basic quality | Very small | Very fast |
| Medium qualityRecommendedBalanced size and quality | Medium | Fast |
| High qualityLarger file, great quality | Large | Moderate |
| Maximum qualityLargest file, best possible quality | Very large | Slow |
Video Tip: Medium quality is ideal for web streaming. Use High or Maximum for videos you plan to edit further or archive.
When to convert
What the MP4 file is good for and why people convert to it.
- Universal playbackAll devices
- Apple compatibleiPhone, iPad, Mac
- Playing on iPhone/iPad
- Uploading to Instagram, TikTok
Where your file goes
- It travels to our server over an encrypted HTTPS connection and is converted there.
- The MP4 file comes back as a private link. It stops working after 24 hours on Free and 7 days on paid plans, and then the files are deleted.