Convert MOV to WebM
Videos recorded on an iPhone or a Mac arrive as MOV, which browsers handle inconsistently when you embed them directly. WebM was designed for the web: it streams well, keeps the file compact and plays in every modern browser. This conversion re-encodes the video in your browser using WebCodecs, so the clip never leaves your machine.
Drop your files here to start converting
All conversions run locally in your browser — files are never uploaded
How to convert MOV to WEBM
- Drag your MOV files onto the page, or click to browse for them.
- Set the resolution, frame rate and bitrate you need.
- Download the WebM files once the conversion completes.
Frequently asked questions
Why is a re-encode needed for WebM?
WebM uses different codecs from MOV, so the frames have to be encoded again rather than copied. The quality settings let you control the trade-off.
Can I reduce the resolution to save space?
Yes. Pick 720p or 480p in the quality panel and the output is encoded at that height.
Which browser should I use?
Video conversion relies on the WebCodecs API, so use a recent version of Chrome or Edge for the most reliable results.