Phone clip
High-bitrate MP4Smaller MP4
Useful for messaging and quick sharing.
動画圧縮
ブラウザで動画を圧縮。ffmpeg.wasm で MP4 のサイズを最大 90% 削減。アップロード不要、登録不要、ウォーターマークなし。無料無制限。
Preparing private browser tool…
The FFmpeg engine runs locally in your browser.
What to expect
Video compression runs locally with ffmpeg.wasm, so speed depends on your device.
Screen recording
Large WebMCompressed MP4
Check text clarity in the exported recording.
Short social video
Original MOVShareable MP4
The selected video is processed in your browser.
Verify how this tool processes files
Review our local-processing checks, documented limitations, and repeatable testing method.