How do I repost on TikTok, and can I undo a repost if I tap it by accident?

Tap the Share arrow on the right of the video and hit the 'Repost' button at the top of the share sheet. That's it, no re-download, no watermark. Where it shows up: a repost does NOT go on your profile grid. Instead it appears in your followers' For You feeds with a 'you reposted' label, like a retweet. To undo one, tap the same Share arrow on that video again and hit 'Remove repost'. On newer versions you can add a note when reposting. No Repost button? Update the app, it rolled out gradually.

Key thing people miss: reposts don't appear on your own profile, only in your followers' feeds. So if you go looking for it on your grid later, it's not there, undo it from the video itself.

To remove an accidental repost, go back to that exact video, tap Share again, and it now says 'Remove repost'. Instant undo, and nobody gets notified.

Repost is different from Duet or Stitch. Repost just pushes the original to your followers as-is; Duet and Stitch create a new video with your reaction. Don't mix them up.

No watermark and no download with repost, it shares the creator's original video directly, so they keep all the credit and the views. Much cleaner than saving and re-uploading.