Convert M4V to WEBM
M4V is great for Apple TV, iTunes and iPhone video, but WEBM is the better choice for web video, HTML5 players and screen recordings. Convert M4V to WEBM in seconds, right in your browser.
- No upload — 100% private
- Fast, lossless when possible
- Free & unlimited
- Works on iPhone & Android
Keep this tab open — the conversion runs on your device, nothing is uploaded.
Add more files above to keep converting.
How to convert M4V to WEBM
- 1
Tap Choose files and select one or more M4V files (or drag them in).
- 2
Check that WEBM is selected. Use Advanced options for resolution, size or trimming.
- 3
Press Convert. Everything happens on your device — no upload, no waiting in a queue.
- 4
Your WEBM downloads automatically. Converting several files? Grab them all as a ZIP.
M4V vs WEBM
Both formats are lossy, so the video is re-encoded once. Pick High quality to keep it as close to the original as possible, or Small for the smallest file.
| M4V | WEBM | |
|---|---|---|
| Full name | iTunes Video | WebM Video |
| Type | Video | Video |
| Compression | Lossy | Lossy |
| Developed by | Apple | |
| Introduced | 2003 | 2010 |
| Plays on iPhone | ✓ Yes | ◐ Partly / with an app |
| Plays on Android | ◐ Partly / with an app | ✓ Yes |
| Plays on Windows | ◐ Partly / with an app | ✓ Yes |
| Plays on Mac | ✓ Yes | ◐ Partly / with an app |
About M4V and WEBM
M4V: M4V is Apple's MP4 variant used for iTunes movies and TV shows. Unprotected M4V files are identical to MP4.
WEBM: WebM is Google's open video format using VP8/VP9 and Opus. It is built for the web and is what screen recorders and browsers produce.
Frequently asked questions
How do I convert M4V to WEBM on my phone?
Will converting M4V to WEBM reduce quality?
Is this M4V to WEBM converter free?
Are my files uploaded to a server?
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