Mp4 — Young[30]

You can use these popular platforms to merge clips, add music, and export your final MP4:

Use the Video Merger to drag and drop clips into a timeline, add transitions, and download as an MP4.

Good web-based options for quick online MP4 merging without installing software.

For editing on the go, InShot or the native Reels/TikTok editors are optimized for the 30-second format. 3. Step-by-Step Assembly