Loop Video
Repeat a clip a set number of times, or fill a target length automatically. A copyable clip loops with a stream copy and no quality lost; the tool says up front which case you're in.
Why looping is usually instant
A loop is a merge of one file with itself: the same clip's video packets are copied once per repeat with their timestamps offset, and nothing is decoded to do it. Because every repeat is a clone of the same source, the fingerprint checks that occasionally force a full re-encode on the merge tool — mismatched codecs, sizes or colour spaces between clips — can never trigger here. The only thing that forces a re-encode is the source's own codec not being carried portably by any container at all, which H.264 and HEVC never run into.
Audio is judged on its own, the same three-tier idea behind changing a video's speed and merging clips: the picture can stay a stream copy while the soundtrack is decoded and rebuilt, if that's what it takes to make every loop point land cleanly.
Frequently asked questions
How do I loop a video in the browser?
Drop a clip in, choose how many times to repeat it — or enter a target length and let the tool work out the count — and export. Nothing is uploaded: the whole repeat happens in this browser tab.
Does looping a video re-encode it and lose quality?
Not usually. This tool is the same stream-copy idea behind merging or retiming a clip: the picture's packets are copied for every repeat with nothing decoded, so there's no quality lost and the export finishes in seconds regardless of how long the result plays. The one exception is a video codec that can't be carried portably by MP4, WebM or MOV at all — H.264 and HEVC never hit this, and the tool says plainly when a file does.
How long can I loop a clip for?
There's no fixed repeat-count limit — a short clip can loop hundreds of times to fill an hour. The real ceiling is memory: the looped file is built whole in this tab before it downloads, so the total output is capped at 1 GB. A 10-second clip under a few megabytes can comfortably loop for a long background video; a multi-minute 4K file cannot loop many times before hitting that ceiling.
What happens to the audio when a clip loops?
You choose. Copy carries the original audio through unchanged when the format allows it, rebuild re-encodes it so every loop point lands on an exact sample boundary, and drop removes it entirely — useful for a silent background loop.
What's the difference between looping and merging the same clip twice?
Nothing, under the hood — looping is merging one file with itself, repeated N times with an offset per repeat. This tool exists because entering a repeat count is a faster way to ask for that than dropping the same file into the merge tool N times and reordering nothing.
Does anything get uploaded?
No. The clip is read from disk and repeated inside this browser tab — there is no server, no queue, no account and no watermark.