MOV to WebM Converter
Convert MOV video to WebM right in your browser. MOV is Apple's QuickTime format, common from iPhones and Macs, while WebM is an open, web-optimised format with efficient compression. Conversion uses your device's built-in video encoder where available, so it's fast — and because it runs locally, your video is never uploaded.
Drop a video here or click to browse
Converted on your device. Nothing is uploaded. Large files run best on desktop.
How to convert MOV to WebM
- Drop your MOV file into the box above, or click to browse.
- Choose WebM as the output format.
- Click “Convert to WebM”. Your device does the work — no upload.
- Download your WebM video. No watermark, no sign-up.
Frequently asked questions
Is this MOV to WebM converter free?
Yes — completely free, no account and no watermark. The only limit is your device's memory and CPU/GPU, since it runs locally.
Are my videos uploaded?
No. Your MOV video is processed entirely in your browser and never leaves your device.
Why is it faster than other converters?
Where your browser supports it, conversion uses the device's hardware video encoder (WebCodecs). If not, it falls back to a built-in software engine.
What size videos can I convert?
Short to medium clips work well. Very large or long videos use a lot of memory — a desktop browser is recommended.