Side by Side
Place two videos next to each other — horizontally or stacked vertically — into one clip.
About Side by Side
Side by Side places two videos next to each other — horizontally or stacked vertically — and combines them into one clip. It's the quick way to build a split-screen comparison, a reaction layout, or a before/after view. The result is an MP4 and the whole composite is rendered in your browser, so nothing uploads.
- Category
- media
- Input
- Accepts: video/*.
- Output
- Outputs: video/mp4.
- Cost
- Free, runs in your browser
- Memory
- high
- Install group
- ffmpeg
Common uses
- Build a before/after comparison of an edit, color grade, or product change
- Create a split-screen reaction video with the source clip on one side
- Show two camera angles of the same moment next to each other
- Stack a vertical talking-head over gameplay or screen footage for a social clip
- Compare two takes of a performance side by side for review
- Put a tutorial demo and the presenter on screen at the same time
Frequently asked questions
Can I stack the videos vertically as well as horizontally?
Yes. You can place them side by side horizontally or stack them one above the other.
How many videos can I combine?
Two — the tool composites a pair of clips into a single frame.
What happens if the two clips are different lengths?
They play together from the start; the combined clip runs to fit both, so the shorter side ends while the longer one continues.
What format does it output?
An MP4 video.
Are my videos uploaded to make the composite?
No. The side-by-side render happens in your browser and both files stay on your device.
Keywords
- video
- side by side
- hstack
- vstack
- compare
- split screen
- stack
- grid