video station
Merge Videos Online
Join uploaded video clips into one MP4 in the selected order. Use this to assemble successive recordings into a continuous video file.
Active conversion station
Join Videos
Concatenate video files
How to join video clips
Prepare the source
Select the video clips you want to join.
Review the settings
Review the upload order and use compatible clips where possible.
Check the result
Start Conversion and check each join in the downloaded MP4.
Supported formats and limitations
Input: MP4, AVI, MOV, MKV, WEBM. Output: MP4. Clips with different codecs, dimensions or frame rates may not join cleanly. There are no transitions or multi-track editing controls.
Processing runs on the server after you select Start Conversion. The interface accepts files up to 500 MB; service and connection limits can be lower. No installation or account is required. Read our file processing privacy policy.
Why Use ConvertFast's Join Videos?
- Assemble multiple clips into one file.
- Review source order before joining the videos.
Frequently Asked Questions
Can I add transitions between clips?
No. This workflow joins clips consecutively without a transition editor.
What should I do if a merge fails?
Try converting the clips to matching video and audio settings first, then merge the compatible outputs.
Ready? It's Free.
No account required. Input rules appear before you upload.
Open Join Videos Tool