Post OnceConnect Instagram to Facebook
Connect your Instagram account as the source and your Facebook Page as a destination in Post Once. From then on, the Reels and longer videos, photos and carousels you post on Instagram go to Facebook on their own, with your caption. Stories go too, once you switch them on.
Before you start
- An Instagram Business or Creator account. Instagram only lets apps read posts from professional accounts. Switching is free in the Instagram app (Settings, then Account type and tools), and your posts and followers stay as they are.
- A Facebook Page you manage. Facebook only lets apps post to Pages, not personal profiles.
- A Post Once account. The free plan includes 10 reposts, with no card needed.
How to connect Instagram to Facebook
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Create a free account at app.postonce.com. After two short intro screens, Post Once asks where you post.
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Under Where do you post first?, pick Instagram and press Continue.
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Under Where else should it land?, pick Facebook. Add any other apps, or a backup, then press Continue.
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On Connect your accounts., press Connect on the Instagram row. Instagram’s sign-in page opens. If you have more than one account, choose the one you post on, then allow access.
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Press Connect on the Facebook row. Sign in with Facebook. In the permissions dialog, make sure the Page you want is selected. Back in Post Once, pick it in the Post to Page list on the Facebook row. With only one Page, it is picked for you. Nothing is posted to Facebook until a Page is picked.
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When both rows say Connected, press Go to dashboard.
From then on, keep posting on Instagram as usual. Post Once checks it about every minute and reposts each new post to Facebook.
Already using Post Once?
If Instagram is already the source of your bridge, open Bridge and press Connect next to Facebook in the Destinations card, or press Add destination on the dashboard. Then pick the Page in the Post to Page list.
If your bridge reads from another account, add a second bridge with Instagram as its source from the bridge switcher. Free and Solo include 1 bridge, Studio 3 and Agency as many as you need. See bridges.
What each Instagram post becomes on Facebook
| On Instagram | On Facebook |
|---|---|
| A Reel or video up to 3 minutes, vertical or square | A Reel if it runs up to 90 seconds, otherwise a Page video. |
| A Reel or video over 3 minutes, or a landscape one | A Page video, up to 2 hours, titled with the first line of your caption. |
| A photo | A photo post. |
| A carousel (its video slides are left out) | One photo post with up to 10 photos. |
| A Story | A Page Story, once you switch Stories on. |
A skipped post shows the reason on your dashboard and still goes to your other destinations. See long videos for how Post Once tells short from long.
How your caption carries over
Your Instagram caption goes with each repost.
Facebook gets the caption up to 2,200 characters. A long video is titled with the first line of the caption.
Choose what goes to Facebook
On the Bridge page, the Facebook row has two settings.
- What to post has a switch for Videos, Photos and Stories. Stories start off, so they are not posted twice if you already share them another way. Switch a kind off and those posts skip Facebook, though you can still send one there by hand. Switching every kind off pauses Facebook.
- Rewrite caption changes the caption for Facebook only: Remove comment, DM and link in bio prompts, Remove hashtags and mentions, Rewrite with AI to suit Facebook, and Add your own text at the start or end. Each one is off until you turn it on.
Your Instagram row also has Include trial reels. When it is off, the default, a trial reel waits until you share it with your followers, then reposts like a new post. Post Once checks for that every 30 minutes for up to 7 days. Turn it on to repost trial reels right away.
Check that it works
Post something on Instagram as usual. Within a minute or two it shows up under Your posts on the dashboard, then goes to Facebook. Each post shows where it went, what was skipped and why.
If a repost fails, Post Once tries again up to 5 times over about half an hour. If it still fails, you get an email, and Retry sends it again to just the accounts it missed. See a post did not repost.
Only posts published after you connect are reposted on their own. Older ones are listed in Your posts, where you can send any of them by hand.
Frequently asked questions
Is it free to repost Instagram to Facebook?
Every account gets 10 free reposts, with no card and no watermark. One repost is one post sent to all your destinations, so it counts once however many apps it goes to. After that, paid plans start at $9 a month. See pricing.
How fast do Instagram posts reach Facebook?
Post Once checks Instagram about every minute, then reposts straight away. Long videos take a few more minutes to fetch and upload.
What are the limits of reposting from Instagram to Facebook?
Post Once sends at most 50 posts per Page per day. Extra posts wait and go out once the limit resets. Videos can run up to 2 hours, at up to 4K.
Why are my Instagram Stories not reposted to Facebook?
The Stories switch on the Facebook row is off by default, because Instagram can share Stories to Facebook on its own. Turn it on under What to post if you want Post Once to do it instead. Only Stories posted after that are reposted.
Are the reposts lower quality than my Instagram post?
Post Once fetches Reels at 1080p where Instagram makes that version available, and falls back to the 720p file Instagram's API provides.
Why did a Reel with music not repost?
Instagram sometimes withholds the file for Reels with licensed music. If Post Once cannot get it another way, the post shows "Instagram did not provide the video file for this reel, usually because it uses licensed audio". Other reasons are in a post did not repost.
Can Post Once post to my personal Facebook profile?
No. Facebook only allows apps to post to Pages. Pick a Page you manage.
I get "No Facebook Page chosen". What do I do?
Facebook is connected but no Page is picked yet. Open Bridge and choose one in the Post to Page list on the Facebook row. New posts then go to that Page.