Reels become video pins
Reels post as video pins, up to Pinterest's 5 minutes. Longer Reels don't post.
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Auto post Instagram to Pinterest
To auto-publish Instagram to Pinterest, open Pinterest Settings, choose Link to Pinterest, click Instagram and allow access; new posts then become Pins on one board, though Pinterest says they can take up to 24 hours. PostOnce pins each new post, carousel and Reel within minutes, with AI titles for Pinterest search if you want.
- No credit card
- 3 min setup
Reel on Instagram
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How to connect Instagram to Pinterest with PostOnce
Of the Instagram posts PostOnce sent to Pinterest right away in the last 30 days, half were live within 4 minutes.
Connect Instagram
Use an Instagram Business or Creator account.
Connect Pinterest
Sign in to the Pinterest account you pin to.
Turn on the workflow
Add the AI rewrite for search-friendly pin titles.
Pinterest's Instagram linking vs PostOnce
Pinterest's linking
- Free, set up in Pinterest's settings.
- Covers posts, Reels and carousels.
- New Pins can take up to 24 hours.
With PostOnce
- Pins go live within minutes.
- Optional AI titles for Pinterest search.
- The same post can reach TikTok, YouTube and more.
Instagram to Pinterest: what becomes a Pin
Carousels become carousel pins
Carousels post as carousel pins of up to 5 photos of the same shape. Pinterest doesn't mix photos and video, so a mixed carousel posts whichever comes first.
A title made for search
Rewrite caption with AI writes a keyword-first pin title. Your caption becomes the description, up to 500 characters.
No hashtags or “link in bio”
The AI rewrite drops hashtags and “link in bio”, which don't work on Pinterest.
Pin and post everywhere
The same workflow can send each Instagram post to Pinterest, TikTok, YouTube and more.
Instagram to Pinterest questions
Can I link my Instagram to my Pinterest?
Yes. In Pinterest, open Settings, then Link to Pinterest, and link Instagram; Pinterest then turns new Instagram posts into Pins on one board. It needs an Instagram professional account.
Why isn't Pinterest's auto-publish working?
Pinterest says new Pins can take up to 24 hours, so check again later and confirm your Instagram is still linked in Pinterest's settings. PostOnce doesn't depend on that link: it pins each new post within minutes.
Do Instagram Reels and carousels go to Pinterest?
Yes. Reels post as video pins up to 5 minutes, and carousels as carousel pins of up to 5 photos.
Do I need a Pinterest business account?
PostOnce doesn't ask for one: connect the Pinterest account you pin to. On Instagram, you need a Business or Creator account.
Which board do my pins go to?
The board you pick in the workflow's settings. If you don't pick one, they go to your board named PostOnce, or your first board if there isn't one. Each pin links back to your Instagram post.
Can I post my older Instagram posts?
Yes. Turn on existing posts, on paid plans and the free trial.
Does pinning my Instagram posts hurt their reach on Instagram?
No. PostOnce only reads from Instagram, so nothing changes there. It posts to Pinterest through Pinterest's official posting API, the same one schedulers use. How a pin does depends on your Pinterest account and the pin.
More ways to crosspost Instagram and Pinterest
Start pinning your Instagram posts
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