Convert MP4 to WEBM
Free, instant, and secure online converter. Upload your .mp4 file and receive a crisp .webm result in seconds.
Need the opposite conversion? Convert WEBM to MP4 →
How to convert MP4 to WEBM
Upload Your File
Click the upload zone or drag and drop your .mp4 file anywhere on the area.
Start Converting
Hit Convert and our server will process your file instantly with high fidelity preservation.
Download Result
Your .webm file is ready in seconds! Click download. Files auto-delete in 6 hours.
MP4 vs WEBM: Comparison
| Attribute | MP4 (.MP4) | WEBM (.WEBM) |
|---|---|---|
| Category | video | video |
| MIME Type | video/mp4 | video/webm |
| Description | MP4 is the most universally supported video container, ideal for streaming and sharing across all devices. | WEBM is an open, royalty-free video format optimized for fast web playback. |
About These Formats
About MP4 files
MP4 is the most universally supported video container, ideal for streaming and sharing across all devices.
About WEBM files
WEBM is an open, royalty-free video format optimized for fast web playback.
Frequently Asked Questions
How do I convert MP4 to WEBM?
Upload your .mp4 file using the box above, or drag and drop it in. We'll automatically convert it to .webm format — just click download when it's ready.
Is it free to convert MP4 to WEBM?
Yes. Converting MP4 to WEBM is completely free, with no watermarks, no signup, and no limit on how many files you convert.
Is it safe to convert files here?
Yes. Files are processed securely and automatically deleted from our servers a few hours after conversion. We never share or view the contents of your files.
What is a mp4 file?
MP4 is the most universally supported video container, ideal for streaming and sharing across all devices.
What is a webm file?
WEBM is an open, royalty-free video format optimized for fast web playback.