How to post to Instagram and TikTok at the same time

Instagram and TikTok do not take quite the same post. Both cap a post at 2,200 characters, and the media or thread rules differ too.

Instagram vs TikTok: what's different

	Instagram	TikTok
Character cap	2,200	2,200
Images per post	10	4
Needs media	an image or a video	a video
Long text becomes a thread	No	No
Comments inbox in fanout	Yes	No
Analytics in fanout	Yes	Yes

What fits both

Text: while both networks use the master draft, the counter holds you to the stricter cap, 2,200 characters (Instagram). Give TikTok its own tab to use its full 2,200.
Images: the lower cap wins, so 4 (TikTok) for a shared set, against 10 on Instagram.
Media: Instagram needs an image or a video and TikTok needs a video. A text-only post is flagged for both. A video cannot be mixed with images in one post.
Over-limit text: neither network threads, so text over a cap is flagged on that network and has to be shortened.

Post to both in fanout

Connect Instagram and TikTok. Each login happens on the network's own permission screen.
Open the composer, write the master draft and select both accounts.
Check each tab. Both inherit the master text until you edit one; AI tailoring suggests a version for each, which you review before anything is published.
Attach media once. The same files go to both networks that accept them.
Publish now, or pick a date and time to schedule it to both.

Tips for this pair

Instagram needs an image or a video, so every post to both needs media attached.
TikTok only takes video, so a text-only or image post cannot go to it. Add a video to reach it.
Replies from Instagram land in the fanout inbox; TikTok replies stay on the network.

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Frequently asked questions

Can I post the same thing to Instagram and TikTok?

Yes, if it fits both. Write one master draft, select both accounts, and fanout publishes a native post to each. The master text must fit the stricter cap of 2,200 characters, or you give TikTok its own version.

What's the character limit when posting to Instagram and TikTok?

Instagram allows 2,200 characters and TikTok allows 2,200. While they share the master text, the composer uses the lower one, 2,200.

Do Instagram and TikTok need images?

Instagram needs an image or a video and TikTok needs a video. Image caps are 10 on Instagram and 4 on TikTok.

Can I schedule to Instagram and TikTok at once?

Yes. Pick a date and time in the composer and the post is scheduled to both accounts together, or publish now instead.

Schedule posts to Instagram · Schedule posts to TikTok · Instagram character counter · TikTok character counter · Cross-post to multiple social networks

More pairs: Instagram and Threads · Instagram and Facebook · TikTok and YouTube

Last updated 2026-10-25.