Merge Videos joins two or more clips into one video, in the order you choose. It takes MP4, MOV, WebM and MKV files, fits every clip to one frame size, and keeps the sound. The result is an MP4 that plays on phones, computers and social networks. The clips are joined in your browser and never uploaded.
How to merge videos
- Click Add videos and choose two or more clips. You can add more later.
- Put the clips in order with ↑ and ↓. Remove a clip with ×.
- Choose the Frame size, how to handle Different shapes, and the Frame rate.
- Leave Keep the sound ticked to keep the audio.
- Click Merge videos, keep the tab open while it works, then check the result and download it.
Frame size
| Option | Size | Good for |
|---|---|---|
| Like one of your clips | that clip’s size | Clips from the same camera or phone |
| Full HD, landscape | 1920 × 1080 | YouTube, TV, computer |
| HD | 1280 × 720 | Smaller files, quick sharing |
| Vertical | 1080 × 1920 | Reels, TikTok, Shorts, Stories |
| Square | 1080 × 1080 | Feed posts |
The list first offers the size of each of your clips. If all clips come from the same device, pick that size and nothing is scaled.
Clips with different shapes
When you mix portrait and landscape clips, or clips with different aspect ratios, every clip must fit the same frame:
- Fit inside (black bars): the whole picture is kept, with black bars at the sides or top and bottom.
- Fill the frame (crop the edges): the picture fills the frame and the edges that do not fit are cut off.
Fit inside is safe when the edges matter, such as text or a full group photo. Fill the frame looks cleaner for social media, as long as the subject is in the middle.
Frame rate and sound
Choose 24, 25, 30 or 60 fps. 30 fps suits most phone videos and screen recordings; use 60 fps if your clips are smooth action or gameplay, and 24 or 25 fps for film-style footage.
With Keep the sound ticked, each clip keeps its audio. A clip without sound, such as a screen recording without a microphone, gets silence for its length, so the sound of the following clips stays in place. Untick it for a silent video.
Output format
The merged video is an MP4 with H.264 video and AAC sound, the most widely supported combination. If your browser cannot encode MP4, it is saved as WebM, which plays in browsers and VLC; convert it afterwards with the Video Converter. All clips are re-encoded to one common format, so merging takes a while, depending on the length of the clips and your device.
Good to know
- iPhone videos in HEVC cannot be read in some browsers. Try a recent Chrome or Edge, or Safari on a Mac.
- Long videos take longer and need more memory, especially on phones.
- Keep the tab open while merging. Switching away may slow it down or pause it.
Before and after merging
Cut each clip to the part you want with the Video Cutter first. After merging, make the file smaller with the Video Compressor, or pull the sound out with Video to MP3.
Private by design
Your clips are joined on your own device and never uploaded. See how it works.