Convert video between MP4, WebM, MOV, and MKV (no upload) - OpenClip
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Convert video between MP4, WebM, MOV, and MKV (no upload)

Change container and codec between MP4, WebM, MOV, and MKV. Pick the right format for your target platform without re-encoding twice. Runs in your browser, your video never leaves your device.

1

Upload your video

Drop any video file. We support most common formats.

2

Choose output format

Select MP4, WebM, MOV, or MKV and adjust quality settings.

3

Download converted video

Get your video in the new format, ready to use.

Step 1

Upload your file

MP4, MOV, WEBM, MKV, and more. Files never leave your device.

Questions & answers

Usually yes. Most platforms expect MP4 (H.264 codec inside an MP4 container). Convert to MP4 with H.264 and the upload will accept it.

Conversion re-encodes, which always loses a small amount of quality. You can pick a higher quality setting to minimize the loss, at the cost of file size.

No. Conversion runs in your browser via WebAssembly, your video never leaves your device, and we keep nothing.

Use the video compressor. It targets a specific file size without changing the format.

Stop editing one clip at a time.

OpenClip finds your best moments, reframes them face-aware for every platform, writes the captions, and posts them. One upload, a week of content.

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