Crosspost from Bluesky to Threads Automatically
Auto post Bluesky to Threads instantly — no downloads, no re-uploads, no manual work. Just publish on Bluesky and your content appears on Threads.
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Bluesky and Threads: the most natural crosspost pair
! Both are text-first microblogging platforms, making them the most compatible pairing
+ ! Bluesky (decentralized, AT Protocol) vs Threads (Meta/Instagram-connected) — different philosophies
+ ! Threads requires an Instagram account; Bluesky does not
+ ! Character limits: Bluesky 300, Threads 500
↓ There's an easier way
What You Need to Know
How creators keep Bluesky and Threads in sync
Tools like OpenVibe, Croissant, Nuelink, and Fedica all support simultaneous posting to Bluesky and Threads.
The workflow: write once, publish to both.
For manual cross-posting: copy the skeet text, paste into Threads, adjust if needed.
Threads has a 500-character limit (versus Bluesky's 300), so you have room to add context.
Hashtags work differently on Threads — they are functional but not as central to discovery.
Mentions do not carry over between platforms.
Each platform's followers are distinct communities even if the content is the same.
Adapting your Threads posts to feel less like reposts
Threads audiences are often Instagram-native and may not know or care about Bluesky.
Avoid referencing AT Protocol, decentralization, or Bluesky-specific culture in your Threads posts — it reads as inside baseball.
Keep the core idea but strip the platform context.
Threads tends to reward personal, opinion-driven posts and genuine back-and-forth in replies.
If your skeet was a hot take or a concise observation, it will likely perform well on Threads with zero modification.
PostOnce keeps your Bluesky and Threads accounts in sync
Post on Bluesky and PostOnce automatically pushes your content to Threads.
No manual copy-paste.
PostOnce handles the distribution in real time so both audiences see your posts without you managing two platforms separately.
Connect once, post everywhere.
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Features
How PostOnce Handles It
Set up Bluesky to Threads crossposting once. PostOnce automates the rest.
Easy Bluesky Crossposting Setup
Connect your Bluesky and Threads 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 Threads
When you crosspost Bluesky to Threads, PostOnce uploads the actual video file — not a link, not a preview.
Your Bluesky content appears as a native Threads post, indistinguishable from content uploaded directly.
Start your free trialCustom Crosspost Rules
Not every Bluesky post belongs on Threads. Set hashtag filters, content type rules, or account-level controls to choose what gets crossposted.
Only the content you want on Threads ends up there.
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Auto Post to Multiple Platforms
Don't stop at Bluesky to Threads crossposting. Auto post your Bluesky content to YouTube Shorts, Facebook, LinkedIn, Threads, and more — all at once.
One post, everywhere. Each platform gets a native upload with adapted formatting.
Start your free trialReal-Time Automation
PostOnce monitors your Bluesky account and automatically crossposts new content to Threads.
No scheduling, no batching. Publish on Bluesky and it appears on Threads within minutes — fully automated Bluesky to Threads posting.
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Bluesky vs Threads at a Glance
| Spec | Bluesky | Threads |
|---|---|---|
| Caption Limit | 300 chars | 500 chars |
| Max Video Length | 1min | 5min |
| Preferred Aspect Ratio | 16:9 | 9:16 |
| Max Video File Size | 50MB | 1GB |
| Carousel Support | Up to 4 items | Up to 20 items |
| Hashtag Strategy | Unlimited | Up to 1 |
| Link Support | Yes | Yes |
| Primary Audience | 20-40 | 18-34 |
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Frequently Asked Questions
Under 60 seconds. Connect both your Bluesky and Threads accounts, choose your filter rules, and you're done. New Bluesky posts will automatically appear on Threads.
PostOnce automatically adapts your 16:9 Bluesky videos to Threads's preferred 9:16 format, ensuring they look native.
Yes. Use hashtag filters to control which posts crosspost. For example, add #crosspost to Bluesky captions and only those posts will go to Threads. Or exclude specific hashtags to skip certain content.
Your captions transfer in full since Threads supports up to 500 characters, which accommodates Bluesky's 300 character limit.
Start Crossposting Bluesky to Threads
Connect your Bluesky and Threads accounts and start crossposting in minutes. No technical setup required.
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