Merge Videos
Combine multiple video clips into one
Your files are processed on your device. The first use downloads a processing engine, which your browser then keeps.
Drop videos to mergeTap to choose videos to merge
or click to browseor tap to choose
Combine multiple video clips
Large files (over 5 GB) may take longer or run out of browser memory
About Merge Videos
Combines two or more video clips into a single video file, played back to back in the order you add them. Runs entirely in your browser — your videos never leave your device.
Upload your video clips in the order you want them to play, then download the combined video. Use the arrow buttons next to a clip to change the order. Each clip shows its length and size, so you can spot the odd one out.
When all clips already match they are joined without re-encoding (fast, no quality loss). Otherwise they are re-encoded to one size and frame rate, with black bars (or cropped edges if you tick "Fill the frame") instead of stretching — choose the output shape above. Tick "Fade between clips" for a short crossfade at each join instead of a hard cut. Clips of very different quality may still look uneven where they join. The size limit applies to all clips added together, not each one separately. Some phone-recorded videos (particularly .mov files) use a codec this tool can't read — if processing fails right away, try re-exporting the video from your phone's own share options first.
Watch: Merge Videos in Action
- Can I merge clips with different resolutions or frame rates?
- Yes. Clips that differ are re-encoded to one size and one frame rate, so a mismatch won't break the merge. Under the clip list the page says which clips differ from the output size, and after merging it tells you if frame rates were converted. Clips with very different original qualities may still look uneven where they join.
- Can I reorder clips after adding them?
- Yes. Each clip has up and down arrow buttons; the clips play in the order they are listed.
- What happens to clips of different shapes, such as a phone clip held upright and a landscape one?
- Choose the Output shape: same as the first clip, landscape 1920 x 1080, portrait 1080 x 1920 or square 1080 x 1080. Clips that do not match are scaled to fit with black bars, or, if you tick Fill the frame, scaled up and cropped at the edges. They are never stretched.
- Can I fade between clips?
- Yes. Tick Fade between clips for a 0.5 second crossfade of picture and sound at each join. The overlap makes the result 0.5 second shorter per join (a very short clip gets a shorter fade). It is a simple fade, not a choice of transition styles.
How to use Merge Videos
Upload your video clips in the order you want them to play — each clip appears in a list with its length and size, and the arrow buttons move it earlier or later. Pick an Output shape (same as the first clip, landscape, portrait or square), tick Fill the frame to crop instead of adding black bars, and tick Fade between clips for a 0.5 second crossfade at each join. Once your clips are arranged correctly, click merge and download the combined video. During merging, each clip is re-encoded to a consistent format, which is specifically what allows clips with different original resolutions or frame rates to merge into one coherent file without the merge simply failing on a mismatch.
When to use it
Useful for combining multiple short clips into one continuous video — stitching together several phone-recorded clips from an event into one shareable video, combining an intro clip with the main content, or assembling a few short recordings into a single file for uploading somewhere that expects one video rather than several separate files.
When not to use it
If you need to actually edit within or between clips — trimming specific sections, choosing between transition styles, overlaying text or music — this tool only joins clips end to end in the order you set, with a hard cut or one simple crossfade; a fuller video editor is needed for those kinds of edits. For combining a very large number of clips or working with professional-grade footage where precise frame-accurate editing matters, dedicated video editing software offers control this straightforward merge tool doesn't.
Tips for best results
If a specific clip fails to process right when you upload it, try re-exporting or re-saving that clip from your phone or camera app's own share options before re-uploading — this often resolves codec-compatibility issues without needing to find alternative software. For the most visually consistent result, use clips recorded at similar resolution and quality settings where possible, since re-encoding smooths over format differences but can't fully mask an underlying quality gap between a high-resolution clip and a low-resolution one merged together.
Limitations
Because all clips are re-encoded during merging, clips with very different original quality levels can still look visually uneven where they join, even though the technical merge itself succeeds — re-encoding solves the format-compatibility problem, not an underlying quality mismatch between source clips. Some phone-recorded videos, particularly certain .mov files, use a codec this tool can't read; if a specific clip fails to process, re-exporting it from your phone's own share/export options first usually resolves it. There's also an overall size limit that applies to all clips combined, not to each clip individually.
Privacy
Merging happens entirely in your browser — your video clips are never uploaded to a server at any point in the process, which is also why merging longer or higher-resolution clips takes real, noticeable processing time on your own device rather than happening instantly on a server.
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