Combine multiple video files into one MP4 — browser-based, no upload needed.
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Add video files to merge
Up to 5 videos — MP4, MKV, AVI, MOV, WebM
Combine multiple video files into a single MP4. Merge up to 5 videos in order. Works entirely in your browser.
Upload up to 5 video files, arrange them in the order you want, and click Merge. FFmpeg uses the concat demuxer to join them seamlessly.
Upload your videos
Drop two or more video files onto the upload area. Add them in the order you want them joined.
Reorder clips
Drag the clip thumbnails to rearrange the playback order before merging.
Check compatibility
For best results, merge videos with the same resolution and frame rate. The tool will re-encode if needed.
Merge
Click "Merge & Download". FFmpeg concatenates the clips in the browser and produces a single video file.
Download
Save the merged video to your device. No subscription required — sign up free to increase your file size limit.
Video Compilations
Join multiple clips together into a single highlights reel or compilation video.
Course Assembly
Combine separately recorded lecture segments into one continuous course video.
Event Recap
Merge footage from different cameras or attendees into a single event recap video.
Music Videos
Concatenate scene clips filmed at different times into a single music video file.
Reel Creation
Join short clips back-to-back to create Instagram Reels or TikTok videos from multiple takes.
Split File Joining
Rejoin a video that was split into multiple parts for storage or transfer back into one file.
100% Private
FFmpeg WebAssembly joins videos entirely in your browser — no clip is ever uploaded to a server.
Up to 5 Videos
Combine up to five separate video files into one seamless output in a single operation.
Stream Copy (No Quality Loss)
The concat demuxer copies video and audio streams without re-encoding, preserving original quality.
Custom Order
Reorder clips using the up/down arrows before merging so the final video plays in exactly the sequence you want.
MP4 Output
The merged result is saved as an MP4 file compatible with every modern device and media player.
Free to Start — Sign Up for More
Use free with no account for standard file sizes. Sign up free to raise your limit to 80 MB, or upgrade to Pro for 250 MB per file.
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