Crosspost from Instagram to Facebook Automatically
Auto post Instagram to Facebook instantly — no downloads, no re-uploads, no manual work. Just publish on Instagram and your content appears on Facebook.
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The reality of posting Instagram Reels to Facebook
! Native crossposting exists but requires Accounts Center setup
+ ! Crossposting toggles per post type (Stories, Posts, Reels) must be configured
+ ! Requires Facebook Page or Profile linked in Meta Accounts Center
+ ! Some content types or music licenses may not transfer
↓ There's an easier way
What You Need to Know
How to set up Instagram-to-Facebook crossposting
The setup is in Meta's Accounts Center, not Instagram's settings directly.
Go to your Instagram profile → Settings → Accounts Center → Sharing across profiles.
You will see your linked Facebook accounts there.
Toggle on the content types you want to crosspost — Posts, Stories, Reels, or all three.
Make your Facebook Reels land with the Facebook audience
Even with native crossposting, a Reel designed for Instagram does not automatically work for Facebook's audience.
Three adjustments improve Facebook performance.
Automate what the native toggle can't do
Meta's native crossposting toggle works well for straightforward Reels from a single Instagram to a single Facebook Page.
Where it falls short: multiple Instagram accounts, multiple Facebook Pages, content filtering (crossposting some Reels but not others based on topic or format), and caption adaptation per platform.
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Features
How PostOnce Handles It
Set up Instagram to Facebook crossposting once. PostOnce automates the rest.
Easy Instagram Crossposting Setup
Connect your Instagram and Facebook accounts, choose your crosspost rules, and you're done.
Setup takes under 60 seconds. After that, everything runs automatically in the background.
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Native Video Upload to Facebook
When you crosspost Instagram to Facebook, PostOnce uploads the actual video file — not a link, not a preview.
Your Instagram content appears as a native Facebook post, indistinguishable from content uploaded directly.
Start your free trialCustom Crosspost Rules
Not every Instagram post belongs on Facebook. Set hashtag filters, content type rules, or account-level controls to choose what gets crossposted.
Only the content you want on Facebook ends up there.
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Auto Post to Multiple Platforms
Don't stop at Instagram to Facebook crossposting. Auto post your Instagram content to YouTube Shorts, Facebook, LinkedIn, Threads, and more — all at once.
One post, everywhere. Each platform gets a native upload with adapted formatting.
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Real-Time Automation
PostOnce monitors your Instagram account and automatically crossposts new content to Facebook.
No scheduling, no batching. Publish on Instagram and it appears on Facebook within minutes — fully automated Instagram to Facebook posting.
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Instagram vs Facebook at a Glance
| Spec | ||
|---|---|---|
| Caption Limit | 2,200 chars | 63,206 chars |
| Max Video Length | 1h | 4h |
| Preferred Aspect Ratio | 9:16 | 16:9 |
| Max Video File Size | 4GB | 10GB |
| Carousel Support | Up to 10 items | Up to 10 items |
| Hashtag Strategy | Up to 30 | Unlimited |
| Link Support | No | Yes |
| Primary Audience | 18-34 | 25-54 |
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Under 60 seconds. Connect both your Instagram and Facebook accounts, choose your filter rules, and you're done. New Instagram posts will automatically appear on Facebook.
PostOnce automatically adapts your 9:16 Instagram videos to Facebook's preferred 16:9 format, ensuring they look native.
Yes. Use hashtag filters to control which posts crosspost. For example, add #crosspost to Instagram captions and only those posts will go to Facebook. Or exclude specific hashtags to skip certain content.
Your captions transfer in full since Facebook supports up to 63,206 characters, which accommodates Instagram's 2,200 character limit.
Start Crossposting Instagram to Facebook
Connect your Instagram and Facebook accounts and start crossposting in minutes. No technical setup required.
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