MP4 to WEBM Converter
Need to convert this file type? Drop it below — or drop any other file and we'll auto-switch. Outputs are auto-deleted after 2 hours; share links expire after 4.
Or paste a link to a file
Drop multiple images to combine them into one PDF, Word document, or PowerPoint presentation — or convert each image separately.
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Drag your MP4 file or click to browse.
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Get your file or share a 1-hour link.
Convert MP4 to WEBM online
Use this MP4 to WEBM converter to turn MP4 files into WEBM right in your browser — ideal for web video, open-source playback and fast-loading clips. WEBM is valued for being small for the web, while MP4 comes with a tradeoff: lossy compression.
When should you convert MP4 to WEBM?
- To reduce file size and make uploading and sharing easier
- To get WEBM's built-in advantage: small for the web
- To move past MP4's common limitation: lossy compression
- To open your files in apps that prefer WEBM
About MP4 and WEBM files
MP4 video
Strengths
- plays almost everywhere
- good quality-to-size
- widely supported
Limitations
- lossy compression
- less flexible than MKV
WebM video
Strengths
- small for the web
- open and royalty-free
Limitations
- limited support in some apps
- less common offline
MP4 vs WEBM
| Format | MP4 | WEBM |
|---|---|---|
| Compression | Lossy | Lossy |
| Transparency | — | — |
| Best for | streaming and sharing and playback on any device | web video and open-source playback |
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Frequently asked questions
- Is this MP4 to WEBM converter free?
- Yes. You can convert MP4 to WEBM online for free, with no account and no watermark.
- Do I need to install software or sign up?
- No. The conversion runs entirely in your browser — no installs and no account required.
- Will converting MP4 to WEBM reduce quality?
- WEBM uses lossy compression, so the file can get smaller while some visual quality may change.
- Are my files safe?
- Yes. Files are processed only to complete the conversion and are auto-deleted after 2 hours. We never share them.
- Can I convert multiple MP4 files at once?
- Yes. Drop several files to convert them in a batch and download the results as a single ZIP.