Merge videos online
Join several clips into one, right in your browser. Nothing is uploaded to a server.
How it works
- Add two or more clips — they stay on your device.
- Put them in the order you want using the arrows.
- Press Merge videos and download the result.
Limitations
Clips are often shot differently, so merging brings them to a common form: the resolution comes from the first file and the rest are fitted into the frame with black bars. Because of that, merging always re-encodes and takes longer than trimming. Long clips are safer to merge on a computer than on a phone.
Supported formats
| Format | Input | Output | Note |
|---|---|---|---|
| MP4 (H.264 / HEVC / AV1) | Yes | Yes | |
| WebM (VP8 / VP9 / AV1) | Yes | Yes | |
| MOV | Yes | No | Result is saved as MP4 or WebM |
| MKV | Yes | No | Result is saved as MP4 or WebM |
Frequently asked questions
Where do my files get uploaded?
Nowhere. Merging happens in your browser, on your device — files are never sent to a server.
Can I merge videos with different resolutions?
Yes. Clips are automatically scaled to a common size so the final video plays smoothly.
How do I reorder the clips?
Use the arrows in the file list — move clips up and down; merging goes top to bottom.
How many files can I merge at once?
No formal limit — the only constraint is your device's memory. The more and longer the clips, the more memory is needed.
What format will the result be in?
MP4 or WebM — depending on which codec your browser supports. Audio from all clips is kept and mixed into one track.
Is it free?
Yes, completely — no watermarks, no sign-up.
More tools
- Trim video online free — Cut your clip right in the browser — no sign-up, no watermarks, no quality loss. The video never uploads to a server, so even large files are fine.
- Compress video online free — Shrink your video right in the browser — no watermarks, no sign-up. The file never uploads to a server and never leaves your device.
- Extract audio from video — Save the audio track as a separate MP3, M4A or WAV file. The video never uploads to a server.
- Video to MP3 converter — free online — Convert any video to MP3 right in your browser — no sign-up, no watermarks. The file never leaves your device.
- Convert video online — Change a video's format in your browser. When the source codecs are native to the new container (H.264/HEVC/AV1 for MP4 and MOV, VP9/VP8/AV1 for WebM), the file is simply repackaged — no re-encoding, no quality loss.
- Change video resolution online — Rescale your video to 1080p, 720p, 480p and more — right in the browser, free and without watermarks. The video never uploads to a server.
- Audio converter online — Convert audio to MP3, WAV, M4A, OGG or FLAC right in your browser — free, no sign-up. The file never uploads to a server.
- PNG to JPG converter — free online — Convert PNG to JPG, JPG to PNG or WebP right in your browser — in batches, no sign-up. Files never leave your device.
- HEIC to JPG converter — free online — Convert iPhone photos from HEIC to JPG right in your browser — in batches, no sign-up. Files never leave your device.
- Compress photos online without losing quality — Shrink photo file sizes several-fold right in your browser — in batches, with a quality slider. Files never leave your device.
- Resize images online — Shrink or enlarge pictures to exact pixel dimensions right in your browser — in batches, keeping proportions. Files never leave your device.
- Video editor — timeline editing with text and subtitles
Need more than one tool?
Kadrcut is also a full video editor in your browser: timeline, multiple tracks, text, effects and transitions. Free, no sign-up — your files never leave your device.
Try the editor