Merge Video
Combine multiple clips into a single MP4.
Upload Video
Drop video hereChoose VideoUp to 100MB • MP4, MOV, WEBM, AVI
No signup•Secure processing•Auto-deleted after processing
Supported Input and Output
- Accepted input
- Two or more MP4, MOV, AVI, MKV, or WebM clips
- Output
- One MP4 containing the clips in the selected order
- Upload limit
- Up to 30 files; each video can be up to 100 MB
- Controls
- Drag-to-reorder clip list, Merge action
What This Processing Changes
Clips are normalized before concatenation so mixed containers can be combined. Re-encoding can change codec details and does not create transitions between clips.
How to Check the Result
- Play across the two-second join.
- Expect approximately four seconds total with audio.
Limits and Troubleshooting
- Arrange clips before starting because the output follows the displayed order.
- Very different aspect ratios or frame rates can make joins visually noticeable.
Worked Example: Join two copies of the two-second sample in upload order.
- Upload sample.mp4 from the example below.
- Set .
- Process and download; play the result from beginning to end.
Check Your Download
- Play across the two-second join.
- Expect approximately four seconds total with audio.
Limit: The synthetic samples match dimensions and frame rate. Mixed sources may be normalized and may show visible joins.
Download the example input and repeat the steps above. These are generated test files, not customer uploads.
- Input bytes (all files)
- 271,164
- Output bytes
- 576,627
- Verified result
- 1280 × 720; 4.064 seconds; h264
- Test date
- 2026-10-06
Measurements apply to this sample and these settings. Other inputs and codec versions can produce different sizes and results.