Merge Videos
Join several clips into one video in the order you choose
- Files never leave your device
- Runs in your browser
- Free, no sign-up, no watermark
Drop video clips here, or click to choose
Accepts MP4, MOV, WebM, MKV · You can also paste with Ctrl+V / ⌘V
How to use Merge Videos
Join several video clips into one MP4 or WebM, in the order you choose. Clips that share the same format are joined without re-encoding; mixed clips are re-encoded to one frame size and frame rate, with black bars or cropping where shapes differ.
- 1
Drop two or more clips (MP4, MOV, WebM, MKV) on the page.
- 2
Drag the cards into order, or use Sort by name and Reverse order. Click Trim on a card to use only part of a clip.
- 3
Under Output, choose MP4 or WebM, a Frame size (First clip, Largest, 1080p, 720p), Fit and Frame rate.
- 4
Click Merge videos, then Download the merged file.
Frequently asked questions
Will merging re-encode my clips?
Before you start, the panel says whether the clips can be joined without re-encoding. That works when every clip has the same codec, size and audio settings, none is trimmed, and Frame rate is Auto; otherwise everything is re-encoded.
Can I merge vertical and horizontal videos?
Yes. All clips are fitted to one frame size; choose Letterbox to add black bars or Crop to fill to cover the frame.
What if one clip has no sound?
Silence is added for that clip, so the audio of the following clips stays in sync with the picture.
Are my videos uploaded?
No. Clips are read, joined and encoded in your browser, using hardware encoding where available.
Is there a limit on clips or length?
No fixed limit. The merged file is built in memory, so the practical ceiling is your device's RAM.