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무료 동영상 합치기
여러 동영상 클립을 원하는 순서로 하나의 MP4로 합칩니다. 크기가 다르면 검은 여백으로 맞추고, 형식이 같은 클립은 재인코딩 없이 이어 붙입니다. 브라우저에서 실행되며 업로드되지 않습니다.
파일을 여기에 끌어다 놓거나 클릭하여 찾기
MP4, WebM, MOV, AVI, MKV, M4V · 크기 제한 없음
또는 Ctrl+V를 눌러 클립보드에서 붙여넣기
여러 파일을 한 번에 끌어다 놓을 수 있습니다
파일이 기기를 떠나지 않습니다. 모든 처리는 브라우저에서 로컬로 이루어집니다.
사용 방법
Joins several video clips into one MP4, in the order you choose, with the FFmpeg engine running in your browser. Clips of different sizes or shapes are fitted into one frame with black bars instead of being stretched or cropped.
- 1Add and order your clipsDrop in MP4, MOV, WebM or MKV files, then drag them or use the up/down arrows to set the order. Tap a thumbnail to preview a clip.
- 2Each clip is checkedFFmpeg (WebAssembly, ~31 MB, downloaded once and cached) reads every clip's codec, frame size, frame rate and audio format. Nothing is uploaded.
- 3Matching clips are joined as-isWhen every clip shares the same codec, size, frame rate and audio (e.g. several clips from one phone), they are joined by stream copy with FFmpeg's concat demuxer — no re-encoding and no quality loss.
- 4Mixed clips are re-encoded to one frameOtherwise each clip is scaled to fit the output size (same as the first clip, 1080p or 720p), padded with black bars, set to one frame rate and encoded to H.264 with AAC audio. Clips without sound get silence so the audio stays in sync.
Your videos are read directly from your device by the in-browser engine and the merged MP4 is built in memory. No clip is ever uploaded to a server.