How to repost your TikToks to Instagram Reels and YouTube Shorts properly

Making a good short video takes hours. Posting it to one platform only leaves a lot of that effort unused. Reposting your own TikToks to Reels and Shorts is one of the easiest ways to reach more people, if you do it with a little care.

Start from the cleanest file you have

The single biggest improvement is starting from a clean file. In order of preference:

1. Your original export from your editing app, before you uploaded it anywhere.
2. A download of the posted version without on-screen app branding. A link downloader such as TT Grab gives you the published file.
3. TikTok's own saved copy, which may carry a moving watermark.

Instagram has said in the past that it may show less of content visibly recycled from other apps, and watermarked clips are the most obvious sign. Even where that isn't enforced, a watermark tells viewers they're seeing a hand-me-down.

Check the shape and the length

All three platforms are built around vertical 9:16 video, typically 1080 × 1920 pixels. If you filmed for TikTok, the shape is already right.

Length is where the platforms differ, and the limits keep changing. Instagram and YouTube have both raised their short-form caps over the past couple of years, and some limits depend on your account. Check each app's current limit when you upload, rather than trusting a number from a blog post, including this one. If your video runs long, a tight cut usually performs better anyway.

Mind the safe zones

Each app lays its buttons, captions and username over different parts of the screen. Text that sits clearly on TikTok can end up hidden behind Instagram's caption or YouTube's subscribe button.

Before reposting, play the video on the new platform's upload preview and check:

• on-screen text isn't covered at the bottom or right edge
• captions aren't cut off
• your face or product isn't hidden behind buttons

If something clashes, move the text up in your editor and export again. Keeping key text in the middle two-thirds of the frame avoids most of the trouble.

Replace the sound if you need to

This is the step people skip, and it matters. If your TikTok uses a track from TikTok's music library, that licence is usually for TikTok. It doesn't follow your video to Instagram or YouTube. The video might be muted, blocked in some countries or claimed by the rights holder.

The safe options are:

• your own voice or original audio
• music from the new platform's own library, added in its editor
• tracks you've licensed for use across platforms

Our explainer on why TikTok music often can't be reused goes into the detail.

Rewrite the caption for each platform

A caption written for TikTok's search and trends won't land the same way elsewhere. Spend two minutes on each:

• Instagram: a strong first line, because only the start shows without tapping "more". A handful of specific hashtags, not thirty.
• YouTube Shorts: a clear title. Shorts are found through search more than you'd expect, so name the thing people would type.

Pace yourself

Posting the same video everywhere within the same hour doesn't do much. A day or two between platforms gives you time to see which hook worked on TikTok and adjust the caption or the opening seconds before reposting.

A reposting checklist

• Clean file, no watermark
• Correct shape, length within the current limit
• Text clear of each app's buttons
• Sound you have the right to use there
• Caption rewritten for the platform

Only your own work

Everything here assumes the video is yours, or that you have permission. Reposting another creator's video, even with credit, isn't the same as having permission. Our guide on downloading someone else's TikTok covers what UK law does and doesn't allow.