Joining clips that don't match
Clips from different phones, cameras and apps rarely match. One is vertical, another landscape; one is 4K at 60 frames per second, another 720p at 30. Simply gluing such files together usually fails or plays back wrongly, so ClipLime re-encodes everything into one consistent video.
Every clip is scaled to fit the frame you choose without stretching or cropping it. Where its shape doesn't match, the space around it is filled with black bars or a blurred background made from the clip itself, the second option looks much less empty when you mix vertical and horizontal footage. Phone videos recorded sideways are turned upright automatically.
Keeping sound in sync
A merge only works if every clip's sound starts exactly when its picture does. ClipLime measures each clip, converts all audio to the same format (48 kHz stereo) and gives each clip precisely as much sound as it has picture. Clips that have no audio track, screen recordings, GIF-style loops, muted exports, get silence for their whole length, so the clips after them stay perfectly in sync.
Each join also gets a tiny fade of a few milliseconds, which removes the click you can otherwise hear when one clip's sound cuts straight into the next.
Choosing the output size
- Match first clip, the natural choice when your clips come from the same device. The first clip in the list decides the size.
- 1080p landscape (1920×1080), for YouTube and anywhere widescreen.
- 720p landscape (1280×720), a smaller file that's quicker to make and send.
- Vertical (1080×1920), for TikTok, Instagram Reels and YouTube Shorts.
- Square (1080×1080), fits feeds on almost every platform.
Want to reframe a single landscape clip as vertical, with a crop that follows the subject? Use Resize for Social on that clip first, then merge.
Tips for a smooth result
Cut each clip down to the part you need with the video trimmer before merging, it's faster and the final file is smaller. If the merged video is too big to share, run it through the video compressor. And if people will watch without sound, add subtitles at the end.
Long merges take a while because every frame is re-encoded on your own device. Keep the tab open until it finishes; a desktop computer is noticeably faster than a phone for big jobs.