Merge Videos
100% private — runs on your device, never uploaded. Works offline once loaded.
Put several clips end to end into one file. The hard part of joining video is that the pieces rarely agree — different sizes, frame rates, audio sample rates, sometimes different codecs — and a naive join either refuses outright or produces something with the sound drifting out of step. Every clip here is first normalised to a common frame size, frame rate and audio format, padded rather than stretched so nothing is distorted, and only then joined. Reorder the clips before you start by dragging them in the strip. Nothing is uploaded.
Frequently asked questions
Do the clips have to be the same format?
No. Each one is scaled into the output frame, padded to fit without distortion, and re-encoded to a common format before joining, so mismatched sources still produce a clean result.
How many clips can I join?
Ten at a time. Beyond that the browser tab tends to run out of memory, since every clip has to be held at once.
Is my video uploaded?
No — the join happens entirely in your browser.
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