Make a looping tweet video

Anywhere video autoplays — Reels, Shorts, TikTok, an embedded WebM — it loops, and a clip that animates in and then stops has a visible jolt every time it restarts. Continuous motion hides the seam because there is no static end state to snap away from.

Paste a link above to see the preview here.

The card keeps the author's name, handle and timestamp so your export credits them. The post itself still belongs to whoever wrote it, so check you have the right to reuse it before you publish.

The Ken Burns preset is the one that loops most cleanly here, drifting and zooming throughout rather than settling. Combined with the loop flag, that gives a clip which can play indefinitely without an obvious cut point.

Questions

Which motion preset loops best?
Ken Burns, because it never comes to rest. Presets that animate in and hold have a visible jump at the loop point.
Does the loop flag matter for MP4?
For GIF it is written into the file. For MP4 looping is decided by the player, so social platforms loop it regardless.
How long should a looping clip be?
Long enough to read the tweet at least once, around 8 seconds. Shorter loops get repetitive quickly.