🎞️Merge Videos (concat)
Join multiple videos in sequence into one file. Powered by ffmpeg.wasm — same codec recommended. Useful for combining clips you split while filming on a phone, joining lecture series, or building wedding highlight reels.
🔒 Browser-based✓ No watermark✓ No signup
How to use
- 1Upload videos (multiple at once).
- 2Reorder with up/down arrows.
- 3Click merge and download the result.
FAQ
Can the videos be different resolutions?+
Same resolution and codec recommended. Otherwise, re-encoding takes long and some clips may crop or blur.
Maximum number?+
No hard limit, but keep the combined size under ~1GB. Shrink first with [Video Compress] if needed.
Are fades/transitions added?+
Currently plain concat only. Use a video editor for fades or subtitles.
What happens to audio?+
Each clip's audio plays in order. If volumes vary, level them first with [Audio Volume].
Does it support MOV or MKV?+
ffmpeg handles MP4, MOV, and WebM well. MKV and AVI vary by codec.