Merge Videos Online — Join Several Clips Into One
Merge videos online for free in your browser. Join several MP4, MOV or WebM clips into one MP4 — reorder them, nothing uploaded, files stay local.
MP4, MOV, WebM — add several
Drag and drop your file here or click to select
About merging videos online
Add two or more clips and this tool joins them into a single MP4, one after another. The clips play in the order shown in the list — drag them up or down to arrange the sequence before you merge. Everything is processed in your browser with ffmpeg.wasm.
Merging is cleanest when the clips share the same resolution, frame rate and codec — for example videos shot on the same phone. When they differ, the tool normalizes them to a common H.264 format so they concatenate smoothly into one continuous file.
Nothing is uploaded: your clips are combined locally and never leave your device. On the first run the browser downloads the ~32 MB engine once and caches it, so later merges begin instantly.
When it helps
Combine phone clips
Turn a handful of short videos from your camera roll into one shareable file instead of sending them one by one.
Join parts of a recording
Stitch a screen recording or lecture that was captured in several segments back into a single, continuous video.
Assemble a simple video
Line up an intro, main clip and outro in the right order and export them as one MP4 — no editor needed.
Stitch together cuts
Combine separate takes or trimmed cuts into one final clip ready to post or send.
FAQ
How do I merge several videos into one?
1) Add your clips (MP4, MOV or WebM). 2) Put them in the order you want using the Up and Down arrows. 3) Click "Merge videos" and download the single combined MP4 when it's ready.
How many videos can I merge?
You can merge several clips at once. There's no fixed limit — the practical ceiling is your browser's available memory, so very many large files on a low-memory device may fail.
Are files uploaded to a server?
No. The clips are merged directly in your browser and never leave your device, which keeps your footage completely private.
Can I reorder the clips?
Yes. Each clip in the list has Up and Down arrows — the final video follows the top-to-bottom order shown before you merge.
What is the output format?
The merged result is a single MP4 encoded with H.264, so it plays on almost any device, player or website.