Combine MP4 Files Into One Video
To combine MP4 files, upload each MP4 below, put them in playback order, and download one continuous video. Since MP4 is what phones, cameras, and screen recorders produce by default, your files usually join without any conversion step in between.
People end up with stacks of separate MP4s for a reason: recorders split long sessions into chunks, cameras roll new files every few minutes, and downloads arrive as parts. Joining them back into a single file makes the footage watchable, shareable, and editable as one piece.
How it works
- 1
Upload your MP4 files
Add every MP4 chunk you want to join — recorder segments, camera parts, downloaded pieces — each up to 500 MB. Consistent resolution across parts gives the smoothest join.
- 2
Order the segments
Line the files up in the sequence they should play, for example part 1, part 2, part 3. Double-check the order before processing so nothing jumps around.
- 3
Download the joined MP4
Run the merge and the cloud concatenates the segments into one MP4. Download the finished file — it plays start to finish with no gaps between parts.
Why use Video-Matic
Built for MP4 chunks
Recorder and camera segments in the same format join seamlessly — ideal for reassembling split recordings.
One file to manage
A single MP4 is easier to upload, archive, and scrub through than a folder of numbered parts.
No install, any device
Joining happens in the browser with cloud processing — works the same on Windows, Mac, Linux, or a tablet.
Parts purged in 24 h
All uploaded segments and the combined MP4 are auto-deleted within 24 hours, hosted in the EU.
Frequently asked questions
Why is my recording split into multiple MP4 files?›
Many cameras and recorders split long sessions automatically to respect file-size limits on their storage cards, and some capture software rolls a new file at set intervals. Nothing is wrong with the footage — the parts just need to be joined back together, which is exactly what this tool does.
Do the MP4 files need the same settings to combine?›
Segments from the same device or recording session share settings and join perfectly. Files from different sources can differ in resolution or frame rate; for those, resize the odd one out first so all parts match, then combine them for a clean result.
What does it cost to combine MP4 files?›
Each merge job costs 2 credits. You receive 3 free credits when you create an account, which covers your first combination for free. When you need more, one-time credit packs are on the pricing page — you never commit to a subscription.
Are my MP4 files private during the merge?›
Yes. Files are processed on EU servers in Paris, and both the uploaded parts and the merged output are automatically deleted within 24 hours. Downloads go through authenticated links, so nobody else can grab your footage.