Merge Videos Online
Merge videos online even when clips use different resolutions, codecs, frame rates, or audio tracks. Add clips, reorder them, and download one normalized MP4 processed locally.
How to merge videos online
- 01Open the online video merger, upload two or more videos, and drag to set their order.
- 02Click Merge - every clip is normalized to a shared resolution, frame rate and audio layout.
- 03Download the combined MP4 when processing finishes.
Merging features
Different resolutions, codecs, frame rates or missing audio tracks are all normalized before concatenation - no error-prone raw concat.
Clips without audio get a silent track so playback stays smooth across the join points.
Move any clip up or down in the queue before merging; the output follows your exact sequence.
Related free tools
Frequently asked questions
How do I merge videos online?+
Open the online video merger, upload two or more clips, drag them into the desired order, click Merge, and download the combined MP4 in your browser.
How is the output resolution chosen?+
The first clip sets the target (capped at 1920x1080); later clips are scaled and center-cropped to match it.
Is there a limit on clip count?+
Up to 8 clips and 500 MB total are accepted. Every clip is re-encoded locally, so processing time grows with the number and length of clips.
Do all videos need the same format?+
No. Each input is re-encoded to a common profile (matching resolution, 30fps, AAC stereo) before being joined, so mixed sources merge reliably.
Can I merge MP4 videos with different sizes?+
Yes. The first clip sets the output target up to 1920x1080, while later clips are scaled and normalized before they are joined.