🔄 Video Convert
Convert video to a different format/container using FFmpeg WASM. Files never leave your device.
Drop a video here, or click to select
MP4 · WebM · MKV · MOV · AVI · FLV · TS
Frequently Asked Questions
Is my video uploaded to a server?
No. FFmpeg runs entirely in your browser via WebAssembly. Your video never leaves your device.
Which video formats are supported?
Output is MP4 (H.264), MKV, MOV, or AVI. Input support includes most common formats, WebM among them.
Does conversion re-encode the video?
Yes, by default. For same-codec container changes, fast copy mode is available to avoid re-encoding and preserve quality.
How long does conversion take?
Depends on file length and device speed. A 1-minute 1080p video typically takes 1–3 minutes in-browser.
Can I change video resolution during conversion?
Yes. Resolution options are available alongside format selection.
Is there a file size limit?
No server-side limit. Very large files may hit browser memory constraints on some devices.
Is the tool free?
Yes, completely free. No account or sign-up required.