Loop a video

To loop a video, choose the part you want to repeat, set how many times it plays or how long the result should be, and save it as one file. Here, that's four steps:

1. Choose your video (MP4, MOV, WebM or MKV), or try it on the example first.
2. Choose the part. Drag the two ends of the timeline, or type the start and end. The player plays just that part, over and over, so you can see where it jumps.
3. Choose how long. A number of times (2 to 20), or a length: 15 seconds, 30 seconds, 1 minute, 3 minutes or your own, up to 10 minutes. Add a crossfade or make it a boomerang if you like, and keep the sound or turn it off.
4. Press Loop video and download it: an MP4, or a WebM in a browser that can't make MP4s.

For a step-by-step on looping in other apps too (on a phone, in a video editor, or on YouTube itself), read how to loop a video.

Looping to a length repeats the part as many whole times as fit, then cuts the last time round short, so the video lands exactly on the length you chose. A crossfade shortens each time round by its length, since the end plays over the start; a boomerang roughly doubles it. Some examples:

Looping a whole video works the same way: leave the ends of the timeline where they are. To join different clips one after another instead of repeating one, use merge videos.

Short videos usually play again as soon as they end in the apps' feeds, so a clip that loops cleanly feels like one continuous video. Make the loop here, then post the file as you would any other. What each app takes, from its own help pages:

The apps show vertical 9:16 video full screen. If your loop is wide, make it vertical with the vertical video converter, and check the length, size and format with the video size checker.

A loop jumps where the end of the part meets its start, unless they happen to match. There are two ways to hide it:

With a crossfade, the video starts on the frame that follows its last one, partway through the fade, so it also loops without a jump when it's replayed. For a loop that plays without sound in a website or a message, a GIF may suit better: it loops on its own everywhere.

Without a crossfade or a boomerang, a part that starts on a key frame (the frames a video can be cut at without re-encoding; the start of a video is always one) is copied as it is, so the loop is ready in seconds and the picture is the original's. Otherwise one time round is drawn and encoded at about the original's quality, then repeated, so even a 20-times loop takes about as long as the part plays, not 20 times as long.

The sound is decoded once and laid down again each time round, crossfaded or faded at each join. Everything happens in your browser, so the video is never uploaded.