Combine videos
Join two or more videos into one, back to back. Processing stays on your device.
Drop the first video
Then add more clips and trim each on the timeline. Nothing is uploaded.
Any media file this browser’s engine can read.
How to combine videos into one
Add two clips or more, put them in order, and export a single video. This online video merger joins the clips on your device, even when they have different sizes, formats, or orientations.
Step 1
Choose your videosAdd the clips you want to join, several at once if you like.Step 2
Set their orderMove clips earlier or later, trim each, and preview them all.Step 3
Download one videoExport the clips as a single continuous file.
What to expect
- Supported inputs
- Two or more media files with video tracks this browser can decode. They do not need to share a format, size, or frame rate.
- What happens
- Each clip plays right after the one before it. The output uses the first clip's format and frame size; a clip with a different shape is fitted inside with black bars. A clip without sound plays silent.
- Limits
- Combining re-encodes every clip. Longer videos need more device memory, and this browser must be able to decode each file.
Private by design
Your video stays on your device
Mastershot processes your file locally in this browser. It does not need to be uploaded to a server, and you do not need an account to use the tool.
- No upload
- No signup
- No watermark
Questions
Yes. The first clip sets the frame size, and the others are scaled to fit inside it without stretching.
The same format as the first clip. Move another clip first, or convert the result afterwards, to get a different one.