Video Converter
Convert MP4, MOV, WEBM, MKV, AVI — any way. 100% browser-based via ffmpeg.wasm. Your video never leaves your device.
How Video Converter works
Any common format works — MP4, MOV, WEBM, MKV, AVI. The file never leaves your device.
ffmpeg-core runs in your browser. First conversion loads the engine (~31 MB, cached after).
Get a fully re-encoded file with sensible H.264/VP8 defaults and AAC audio.
Frequently asked
Is my video uploaded?+
Never. Encoding runs 100% in your browser via ffmpeg.wasm. Perfect for private or confidential clips.
Why does the first run take longer?+
The ffmpeg WebAssembly engine (~31 MB) is fetched once from our servers and cached. All subsequent conversions start instantly.
What's the file-size limit?+
Practically your device's memory. On desktop this is comfortable up to ~500 MB. Mobile browsers cap much lower — keep clips under 2 min / 720p for reliable results.
Is there a quality loss?+
Any re-encode is technically lossy. We use fast presets that keep visible quality high for typical clips.
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