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Merge MP4 Files with FFmpeg
Join multiple MP4 files using the concat demuxer.
Command
Use this when
- You have multiple clips from the same camera or export settings.
- You want a fast merge without re-encoding.
- You can create a files.txt list in the same folder.
Customize it
Create FFmpeg concat commands to merge MP4 and other video files, with fast stream-copy and compatible re-encode modes.
Open Merge VideosParameter breakdown
-f concat
Uses FFmpeg concat demuxer mode.
-safe 0
Allows paths in the file list that may otherwise be rejected.
-i files.txt
Reads input file names from a text file.
-c copy
Copies streams without re-encoding for speed and no generation loss.