Select multiple MP4 video files to conceptually merge them.
This tool explains the limitations of client-side video merging and provides alternatives.
Select multiple MP4 video files
No video files selected yet.
Processing files...
Why Direct Video Merging is Difficult in the Browser:
Merging multiple video files into a single, seamless video requires complex decoding, concatenation of video/audio streams, and then re-encoding the combined content. Browsers do not typically provide the low-level access or computational power needed for this process purely client-side within a single HTML file.
While some advanced solutions exist (like `ffmpeg.wasm` which brings powerful video tools to the browser), they involve very large external libraries (tens of MBs) that cannot be embedded in a simple, self-contained HTML file without violating common restrictions.
Recommendations for Video Merging:
Online Video Mergers: Use reputable online services (e.g., Clideo, Fastreel, Kapwing) which perform the merging on their powerful servers.
Desktop Software: Download dedicated video editing software like Kdenlive, Shotcut, DaVinci Resolve, or even command-line tools like FFmpeg.
This page can only demonstrate file selection and list management. A true merging operation resulting in a new video file is beyond the scope of a basic, self-contained client-side script under these constraints.