To loop a video, you repeat a chosen section of it back-to-back until the result reaches the length you want. The fastest way to do that with an exact runtime — 30 seconds, 3 minutes, an hour — is to open LoopVideo, trim the section you want to repeat, type the target minutes and seconds, and export an MP4. Everything runs in your browser, so the clip is never uploaded anywhere.
Step by step
- Open LoopVideo and drop your clip onto the upload area. MP4 and MOV files with H.264 video work best.
- Drag the in and out handles on the timeline to select the part you want to repeat. Shorter, cleanly-cut sections loop better than a whole clip with a fade at the end.
- Play the preview. Playback is restricted to your trim range, so you hear and see the loop seam exactly as it will be exported.
- Set the loop length using the Minutes and Seconds fields. This is the total runtime of the export, not the number of repeats.
- Choose a resolution (Source, 1080p, 1440p or 4K) and a quality preset. Higher presets raise the bitrate and the file size.
- Pick your audio: loop the clip's own audio, upload a separate track, or mute the export.
- Press Export. On Chrome and Edge you can stream the file straight to disk, which matters for long 4K exports.
Why exact duration matters
Most loop tools give you a repeat count, which means the runtime lands wherever the maths puts it. If you need a video to match a 2 minute 30 second slot, a 45-minute event backdrop, or the length of a song, a repeat count forces you to trim afterwards and often cuts mid-frame. LoopVideo works the other way round: you declare the runtime, and the last repeat is cut at exactly the frame that hits it.
Keeping the export smooth
- The export is written at a constant frame rate, so players do not stutter at the loop points.
- Bitrate is calculated from your resolution, frame rate and quality preset rather than a fixed number, so 4K output does not get starved.
- Nothing is re-uploaded or re-compressed by a server, so the only generation loss is the single encode you asked for.
- If a loop looks like it jumps, the trim points are usually the cause rather than the encoder — see the seamless-loop guide below.
Browser support
MP4 (H.264) export uses in-browser video encoding, which is available in Chrome and Edge on desktop. Other browsers can still open the tool and preview, but export may be unavailable. If your file will not decode, re-save it as an H.264 MP4 first.
Open LoopVideo to trim your clip, set an exact loop length in minutes and seconds, and export a high-bitrate MP4 up to 4K — in your browser, with no upload and no watermark.
Frequently asked questions
- Is looping a video free here?
- Yes. LoopVideo is free to use, there is no sign-up, and exports carry no watermark.
- Does my video get uploaded to a server?
- No. Trimming, looping and encoding all happen locally in your browser, so the file never leaves your device.
- How long can the loop be?
- There is no fixed cap. Long 4K exports produce large files, so on Chrome or Edge let the tool write directly to disk instead of buffering in memory.