Loop video

Repeat a video a fixed number of times, or loop it until it reaches a target length, by copying its packets end to end. A packet-level copy with no decoding, so this runs in Node, the CLI and MCP as well as the browser.

Loop video repeats a clip a set number of times, three by default, or copies it end to end until the output hits a length you choose in seconds. Nothing decodes during the copy, so a partial final repeat trims by timestamp instead of a re-encode. This works in Node, the CLI, or MCP, no browser required.

Questions

What is the difference between times and seconds mode?

times repeats the clip a whole number of times you set, three by default. seconds repeats it until the output reaches a target length, cutting the final repeat short if needed.

Does looping re-encode the video?

No. Packets are copied end to end with their timestamps shifted, with no decoding, so quality matches the source exactly across every repeat.

What happens to the audio when looping?

It loops along with the video using the same packet copy approach, when the source has an audio track. A source with no audio produces a silent looped video.

Why did it refuse my seconds value?

Because the target length has to be greater than the source clip's own duration; asking for a shorter target than the original makes no sense to loop toward.

Does this run outside the browser?

Yes. Since nothing is decoded, it runs in Node, on the command line and through MCP as well as on the web page.

Related Video tools

n→nConvert videoChange videos between MP4 and WebM, in the browser only. It encodes with WebCodecs, which Node has no equivalent of, so the CLI and MCP surfaces refuse it. Nothing is uploaded. AVI, WMV and FLV files use a 32MB ffmpeg fallback engine instead, once you consent.n→nCompress videoShrink a video by re-encoding it at a lower quality, in the browser only, like video-convert, because mediabunny encodes through WebCodecs, which Node has no equivalent of. Always outputs MP4.n→nTrim / cut videoCut a video down to a start-to-end range without decoding a single frame. Packets are copied straight from the source into a new MP4, so this runs in Node, the CLI and MCP as well as the browser. The cut snaps back to the nearest keyframe before the start you asked for, the same trade-off ffmpeg -c copy makes.n→1Merge videosConcatenate two or more videos, one after another, into a single MP4. A packet-level copy with no decoding, so this runs in Node, the CLI and MCP as well. Every input must share the same video codec (and audio codec, if present); mixed-codec inputs need re-encoding first, which this tool deliberately does not do.n→nResize / crop videoResize and/or crop a video, in the browser only, like video-convert, because mediabunny decodes and re-encodes through WebCodecs, which Node has no equivalent of. Always outputs MP4.n→nRotate videoRotate a video by a multiple of 90° by writing rotation metadata into the container, the same trick phones use for orientation, rather than re-encoding every frame. A packet-level copy, no decoding, so this runs in Node, the CLI and MCP as well as the browser. Most players honour this metadata; a player that ignores it will show the original orientation.n→nChange video speedSpeed a video up or down by rescaling the timestamp on every packet. A packet-level copy, no decoding, so this runs in Node, the CLI and MCP as well as the browser. Audio speeds up with the video and its pitch shifts along with it, the same trade-off most simple speed-change tools make; correcting pitch back to normal needs decoding and resampling the audio, which this tool deliberately does not do.n→nVideo metadataRead a video container apart without decoding a frame: format, duration, every stream's codec, resolution, frame rate, bitrate and language, plus rotation and creation time where the file carries them. Runs in Node, the CLI and MCP as well as the browser.