Crosspost from Threads to Instagram Automatically
Auto post Threads to Instagram instantly — no downloads, no re-uploads, no manual work. Just publish on Threads and your content appears on Instagram.
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Threads to Instagram: Meta actually built this natively
! Meta has a native cross-posting toggle between Threads and Instagram — this is built in
+ ! Threads posts can now be shared directly to Instagram Stories without leaving the Threads app
+ ! The reverse is also available: Instagram posts can be shared to Threads
+ ! Some users want to control which content crosses over and which stays platform-specific
↓ There's an easier way
What You Need to Know
How creators manage the Threads-Instagram crosspost toggle
The in-app workflow: in Threads, tap the share icon on any post and select 'Share to Instagram Story.' For new posts, the 'Also share on...' option appears in the post composer.
You can set it to auto-crosspost or decide per post.
Many creators choose selective crossposting — keeping casual Threads discussions on Threads only, and sharing polished takes or announcements to their Instagram Story for broader reach.
Instagram Stories disappear after 24 hours, so Threads content shared there is inherently temporary — which works well for timely posts.
Making your Instagram Story feel intentional, not automated
Instagram Story audiences expect visual-first content.
A Threads post shared as a Story appears as text on a plain background — which can feel sparse.
Add a reaction sticker, a poll, or a question box to make it interactive.
Pair it with a visual element from your camera roll.
Keep the Threads text short — long posts in Stories require multiple taps and lose viewers.
The best Threads-to-Instagram crosspost moments are punchy opinions or questions that naturally invite a Story response.
PostOnce gives you additional control over Threads-Instagram distribution
Meta's native toggle handles the basic crosspost, but PostOnce gives you more automation options and flexibility across your full content calendar.
PostOnce connects Threads and Instagram alongside your other platforms, so you can manage all cross-posting from one place.
Post on Threads, reach Instagram — automatically and consistently.
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Features
How PostOnce Handles It
Set up Threads to Instagram crossposting once. PostOnce automates the rest.
Easy Threads Crossposting Setup
Connect your Threads and Instagram 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 Instagram
When you crosspost Threads to Instagram, PostOnce uploads the actual video file — not a link, not a preview.
Your Threads content appears as a native Instagram post, indistinguishable from content uploaded directly.
Start your free trialCustom Crosspost Rules
Not every Threads post belongs on Instagram. Set hashtag filters, content type rules, or account-level controls to choose what gets crossposted.
Only the content you want on Instagram ends up there.
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Auto Post to Multiple Platforms
Don't stop at Threads to Instagram crossposting. Auto post your Threads 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 Threads account and automatically crossposts new content to Instagram.
No scheduling, no batching. Publish on Threads and it appears on Instagram within minutes — fully automated Threads to Instagram posting.
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Threads vs Instagram at a Glance
| Spec | Threads | |
|---|---|---|
| Caption Limit | 500 chars | 2,200 chars |
| Max Video Length | 5min | 1h |
| Preferred Aspect Ratio | 9:16 | 9:16 |
| Max Video File Size | 1GB | 4GB |
| Carousel Support | Up to 20 items | Up to 10 items |
| Hashtag Strategy | Up to 1 | Up to 30 |
| Link Support | Yes | No |
| Primary Audience | 18-34 | 18-34 |
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Under 60 seconds. Connect both your Threads and Instagram accounts, choose your filter rules, and you're done. New Threads posts will automatically appear on Instagram.
Yes, both platforms use 9:16 as their preferred format, so your videos transfer without any reformatting.
Yes. Use hashtag filters to control which posts crosspost. For example, add #crosspost to Threads captions and only those posts will go to Instagram. Or exclude specific hashtags to skip certain content.
Your captions transfer in full since Instagram supports up to 2,200 characters, which accommodates Threads's 500 character limit.
Start Crossposting Threads to Instagram
Connect your Threads and Instagram accounts and start crossposting in minutes. No technical setup required.
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