Beginner9 min

Assemble and Export in CapCut

Clips on disk are not a video. CapCut is where they become one. It is free, fast, and runs on phone or desktop. We will sequence the clips, add a beat-matched cut, drop captions, and export a clean vertical file.

Step 1: New project at the right size

Create a 9:16 project for vertical platforms or 16:9 for YouTube. Set this first. Changing aspect ratio after you have placed clips re-crops everything and is painful.

Step 2: Drag clips in shot order

Pull shot1 through shot4 onto the timeline in order. Play it through once with no edits. You are checking story flow, not polish.

Step 3: Trim the dead frames

Generated clips often have a soft start or a drifting end. Trim each clip so it starts on the strongest frame and cuts before it falls apart. A short, confident clip beats a long, mushy one.

CapCut - timeline
Video [shot1][shot2][shot3][shot4]
Audio [=========== music ===========]
Text [ caption ][ caption ][ caption ]
Playhead 00:12 / 00:20
Four trimmed clips, a music track, and a caption track.

Step 4: Auto-captions and music

Add a royalty-free track from the CapCut library and lower its volume under any voiceover. Then run Auto Captions so the words appear on screen. Most viewers watch muted, so captions are not optional.

Export settings matter
Export at 1080p and at least 30fps. If a platform compresses your upload, a higher source bitrate survives better. Avoid 720p for anything you want to look sharp.
capcut - export
$resolution: 1080x1920 fps: 30 format: mp4
rendering 00:20 timeline...
saved -> exports/final.mp4 (14.2 MB)
$

Result: exports/final.mp4. A real, captioned, music-backed short you built from one sentence. That loop, idea to script to clips to cut, is the whole job. Everything else is doing it better and faster.

Hands-on tasks