Convert WEBM to MP4 Online
Free, instant, and private. Drop your file — it never leaves your browser.
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Drop WEBM files here
Multiple files supported · max 200 MB each
🔒 Files never leave your device🖥️ Runs in your browser🆓 Always free
How to convert WEBM to MP4
- Drop or click to upload your WEBM file.
- The converter starts automatically. No settings required.
- Click Download when done.
100% private conversion
This tool runs entirely in your browser using WebAssembly (FFmpeg WASM). Your WEBM file is never uploaded to any server — everything stays on your device.