Tubelexity creator guide
How to merge videos with matching or mixed formats
Video clips can be joined without re-encoding only when their streams and timing properties are compatible. Mixed codecs, dimensions, frame rates or audio layouts should be normalized before concatenation to avoid playback errors and synchronization problems.
Open the Video MergerStep-by-step workflow
- 01Add every clip and place it in output order.
- 02Read the fast-merge compatibility reasons.
- 03Choose contain or crop for mixed aspect ratios.
- 04Select a transition only when its requirements pass.
- 05Export and review every join point.
When fast merge works
Fast merge copies streams, so matching container, codecs, dimensions, frame rate and audio layout are important. It is faster and avoids a generation of video quality loss.
Why compatible merge takes longer
Compatible merge decodes each source, normalizes it to one frame size and frame rate, aligns audio, then encodes a common output. This is the reliable route for mixed camera and phone clips.
- Contain preserves the full frame with borders.
- Crop fills the canvas without stretching.
- A silent track may be inserted when one clip lacks audio.
Browser limitations
Several large clips can exceed browser memory. Work from shorter sources, close other tabs and use a desktop Chromium browser for demanding joins.
Frequently asked questions
Does fast merge reduce quality?
Stream copy does not re-encode the video.
Can portrait and landscape clips be joined?
Yes. Use contain with borders or crop to fill.
Why can fast merge be unavailable?
One or more stream properties differ between the clips.