Compare a before and after, react to a clip, or show two angles at once. Combine two videos next to each other or one above the other, choose whose sound plays, and get one video to share.
Side-by-side video at a glance
| Price | Free, no sign-up, no watermark, no daily limit |
|---|---|
| Accepts | MP4 · MOV · WebM · MKV |
| Largest file | 1 GB per file, several files at once |
| Where it runs | In your browser: files are never uploaded |
| Works on | Chrome and Edge, Safari 17+, Firefox 130+ on iPhone, Android, Windows, Mac and Linux |
| Send the result | Download it, or send it free with a link or by email (up to 20 GB) |
How to make a side-by-side video
- Choose two videos; the first goes left (or on top).
- Pick Side by side, Top and bottom, or Picture-in-picture.
- Choose fill or whole picture, the quality, the length and the sound.
- Press Combine videos, watch the result, then download or send it.
Layouts
| Layout | Result from two 1080p landscape clips | Good for |
|---|---|---|
| Side by side | 1920 × 540 | Before/after, comparisons, two angles |
| Top and bottom | 1080 × 1216 | Reactions and duets for vertical feeds |
| Picture-in-picture | 1920 × 1080 | Facecam over a screen recording |
Both panels take the first clip's shape. If the second clip has another shape, “Fill” crops its edges and “Whole picture” adds bars.
Length and sound
Choose whether the result lasts as long as the longer clip, the shorter clip or clip 1. When one clip ends first, its last frame stays on screen. For sound, pick both clips mixed (a limiter prevents clipping), just one of them, or none.
Heavy work, done on your device
Both videos are decoded frame by frame, drawn into one picture and encoded as H.264 MP4 with your device's video hardware. On a computer that is usually faster than real time; on a phone it takes about as long as the video, so phones use 720p and allow up to 5 minutes (computers 30). Trim long clips first with Trim video. Nothing is uploaded.
How this compares
| This tool | Online converters (e.g. Clideo, FreeConvert or CloudConvert) | Desktop apps (e.g. HandBrake) | |
|---|---|---|---|
| Your file is uploaded | No | Yes, to their servers | No |
| Install or account | None | Account for some features | Install needed |
| Watermark or daily limits | None | Common on free plans | Depends on the app |
Plans of other services change; check their sites. More video tools.
Frequently asked questions
How do I put two videos side by side?
Choose both videos, keep “Side by side” and press Combine videos. Use the arrows to swap left and right.
Can I combine videos of different lengths?
Yes. Choose the length; the shorter clip freezes on its last frame when it ends.
Does it work on a phone?
Yes, at 720p and up to 5 minutes, since two videos are decoded and one encoded at the same time. A computer is faster.
Is there a watermark?
No. No watermark, no sign-up.
Are my videos uploaded?
No. They are combined in your browser.
Need to send a big file?
Send files up to 20 GB with a download link or by email. Free, no account needed, original quality.
Send large files free