Merge Videos Online
Join clips in any order into one MP4. Mixed sizes and formats are fine.
How it works
How to merge videos?
Add your videos
Drop two or more files onto the box, or pick them together from your device. They are read straight off your disk, so there is no upload bar and no file-size ceiling.
Put them in order
The list is the timeline: move a clip up or down with the arrows, take one out, or add more. Each row shows its length, size and whether it carries sound.
Pick the frame
The output uses the first clip’s shape. Clips that do not match either keep their whole picture with bars or get cropped to fill — your call, along with the resolution.
Merge and download
The file saves as "yourclip-merged.mp4". It encodes on your graphics hardware, so it is far quicker than the clips are long — and you can switch tabs while it works.
Spec sheet
Features
As many clips as you like
Two videos or twenty — there is no cap on the count and no quota on the length, because there is no server doing the work. Your own hardware is the only limit.
Reorder before you commit
Arrows move a clip up or down the running order — they work one-handed on a phone, where drag-and-drop does not. Remove a clip or add more at any point.
Mixed sizes welcome
A vertical phone clip and a widescreen recording can go in the same list. Everything is conformed to the first clip’s frame — with bars, or cropped to fill it.
Audio that stays in sync
Each clip contributes exactly its own length of sound, and a clip with no audio track gets silence written in its place — so the soundtrack never drifts against the picture.
Source, 1080p, 720p or 480p
Keep the first clip’s resolution or step the merged file down to a smaller one — useful when the clips are big and the destination is a chat message.
MP4 download, no watermark
Whatever mix goes in, the download is one clean H.264 MP4 with AAC audio. No logo in the corner, no signup, and nothing uploaded while it works.
Questions