Convert M4V to WEBM
Convert M4V files to WEBM locally, completely free and with maximum privacy.
Drag and drop your files here
or click to browse local files (large files supported, limited only by browser RAM)
Upload FilesPlatform Statistics
How to convert M4V to WEBM
- Drop your .m4v files above, or click Upload Files. You can add many files at once.
- WEBM is already selected as the output. Open the settings (gear icon) to fine-tune the result.
- Click Convert All. FFmpeg runs inside your browser through WebAssembly; nothing is uploaded.
- Download your .webm files as soon as each one finishes.
What to know about M4V to WEBM conversion
- The video is re-encoded to VP8 video and Opus audio so it plays wherever WEBM is supported, and odd frame sizes are adjusted automatically.
- You can change the resolution, frame rate, playback speed and quality (CRF) before converting.
M4V vs WEBM
| Feature | M4V (Apple MPEG-4 Video) | WEBM (WebM Video Container) |
|---|---|---|
| Codecs used by PureConverter | H.264 video and AAC audio | VP8 video and Opus audio |
| Best for | iTunes and Apple TV libraries | web video with open, royalty-free codecs |
| Opens in | Apple TV app, iTunes and VLC, mpv and most media players | all modern browsers and VLC |
M4V (Apple MPEG-4 Video): An MPEG-4 video container used by Apple for iTunes and iOS devices.
WEBM (WebM Video Container): An open, royalty-free media file format designed for sharing video content directly on HTML5 web pages.
Conversion options
- Resolution: original, 1080p, 720p, 480p or 360p
- Frame rate and playback speed (0.5× to 2×)
- Quality presets or a custom CRF value, and lossless mode
- Audio bitrate, sample rate and channels
Frequently asked questions
Is it safe to convert M4V to WEBM here?
Yes. Your files are processed entirely on your own device by WebAssembly code running in the browser. They are never uploaded, so nobody else can see them, and the converter keeps working even if your connection drops after the page loads.
Is there a file size limit?
There is no server-side limit. The only limit is the memory available to your browser, typically 1.5–4 GB on desktop computers.
Can I convert several M4V files at once?
Yes. Add as many files as you like; they are converted in parallel according to your device's CPU cores, and you can apply the same settings to all of them.
Related conversions
Need the opposite? Convert WEBM to M4V.
Convert M4V to other formats
- M4V to MP4
- M4V to MP3
- M4V to WEBP
- M4V to GIF
- M4V to WAV
- M4V to MOV
- M4V to M4A
- M4V to FLAC
- M4V to MKV
- M4V to AAC
- M4V to OGG
- M4V to OPUS
Convert other formats to WEBM
- MP4 to WEBM
- MOV to WEBM
- MKV to WEBM
- AVI to WEBM
- WMV to WEBM
- FLV to WEBM
- MPEG to WEBM
- TS to WEBM
- 3GP to WEBM
- OGV to WEBM
See every M4V converter and WEBM converter, or browse the full converter directory.