The online video merge tool joins multiple MP4, MOV, MKV, WEBM, AVI and other video files into one video locally in your browser.

Features

• Upload multiple files, drag files in, and add more files later
• Drag video items to adjust the merge order
• Export MP4, MOV or AVI
• Choose low, medium or high video quality
• View file count, input size, output format and result size
• Preview and download the merged video
• Process files locally in the browser

Use Cases

• Merge course videos, screen recordings and meeting clips
• Join editing clips, short videos and demo recordings
• Combine several camera clips into one file
• Process private videos locally without uploading them

Notes

The first run loads a local FFmpeg WebAssembly file, so keep the page open while it loads. Video merging can use significant CPU and memory, and large files may take longer on mobile devices. Videos from different sources are normalized before merging, so the exported size may differ from the total input size.