Video Merger

Combine multiple video files into one. Drag to reorder, then merge. Browser-based with FFmpeg WASM — your videos stay private.

For best results, use MP4 files with the same resolution and codec. Files are processed entirely in your browser.

Video Files (0)

Click or drag videos here

Add 2 or more video files

Video Merger — How to Combine Video Files

Merging videos combines multiple clips into one continuous file. This tool uses the concat demuxer in FFmpeg, which works best when all input files have the same video codec (H.264), resolution, and frame rate. If your videos have different settings, the tool will attempt to re-encode them but results may vary. Drag-to-reorder lets you control which video plays first. For social media compilations, highlight reels, or combining screen recordings, having consistent encoding ensures the smoothest merge. The output is an MP4 file downloaded directly to your device — no files are sent to any server.