Video Merger

Concatenate videos in order. Processed in your browser — never uploaded.

Click to choose videos, or drag them here (multiple OK)

Supports MP4 / WebM / MOV / MKV / AVI, etc.

Max 2GB per file. More clips = slower; compress first if needed.

First run downloads an ~30MB FFmpeg engine (then cached). Clips are normalized to the first clip’s resolution (letterboxed if needed) before joining — please wait.