Automatically Post Threads to LinkedIn: Complete Guide
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Threads reaches Instagram users looking for text-based discussion while LinkedIn connects with Professionals and B2B decision-makers, letting you expand to a new audience segment. Your Threads content format works on LinkedIn, so you can share without creating entirely new content. Whether you want to auto-post everything or filter by hashtag, this guide covers everything about Threads to LinkedIn automation. Learn how to crosspost from Threads to LinkedIn or repurpose your content for maximum reach.
Threads to LinkedIn Content Compatibility
Video
Needs Adaptation
Images
Direct Transfer
Text/Captions
Direct Transfer
Threads vs LinkedIn: Platform Specs
| Spec | Threads | |
|---|---|---|
| Caption Limit | 500 chars | 3,000 chars |
| Max Video Length | 5min | 10min |
| Preferred Aspect Ratio | 9:16 | 16:9 |
| Max Video File Size | 1GB | 5GB |
| Carousel Support | Up to 20 items | Up to 20 items |
| Hashtag Strategy | Up to 1 | Unlimited |
| Link Support | Yes | Yes |
| Primary Audience | 18-34 | 25-45 |
Why Automate Threads to LinkedIn?
Expand short Threads clips into longer LinkedIn content for deeper audience engagement
Repurpose Threads content for your professional LinkedIn audience to build industry authority
Accompany your Threads visuals with text-driven posts on LinkedIn for storytelling
Manual Posting vs Automated Distribution
Manual Method
- ✗Upload the same video to LinkedIn after posting to Threads
- ✗Copy and reformat captions for each platform
- ✗Constantly context-switch between apps
- ✗Risk forgetting to post to LinkedIn
- ✗Spend 10-15 minutes per post managing distribution
- ✗Miss peak posting times on LinkedIn
PostOnce Automation
- ✓Post to Threads like normal—we handle LinkedIn
- ✓Captions automatically adapted for LinkedIn
- ✓Stay in your favorite platform's workflow
- ✓Every Threads post automatically appears on LinkedIn
- ✓Set up once in under 60 seconds
- ✓Consistent posting schedule maintained automatically
Manual posting might work when you're just starting out, but as your content volume grows, automation becomes essential. The difference isn't just time saved—it's the ability to maintain a consistent multi-platform presence without burning out.
How to Set Up Threads to LinkedIn Automation
Connect Threads and LinkedIn
Link both social accounts to PostOnce using secure OAuth authorization.
Threads uses standard OAuth and LinkedIn requires standard authorization. Both connect in seconds.
Configure your automation rules
Choose to crosspost everything or filter by hashtags, content type, or custom rules.
Your Threads captions fit within LinkedIn's limits, so default settings work great.
Post on Threads as usual
Create content on Threads and PostOnce handles LinkedIn distribution.
Your 9:16 Threads content is automatically reformatted to 16:9 for LinkedIn.
Flexible Automation Options
Control exactly how your Threads content gets distributed to LinkedIn with powerful automation rules.
Post Everything
Every Threads post automatically goes to LinkedIn
Filter by Hashtag
Use specific hashtags to control what gets crossposted to LinkedIn
Custom Rules
Set advanced filters based on your Threads to LinkedIn workflow needs
Most creators use hashtag filtering to maintain control over their crossposting workflow. For instance, you might want all your Threads tutorials to go to LinkedIn, but keep personal content separate. Simply add a specific hashtag like #autopost to your Threads caption, and only those posts will be distributed.
If you want to repurpose content from Threads to LinkedIn, you can also customize how captions, formats, and media are adapted for each platform's unique audience and requirements.
What to Expect
Works Well
- ✓Photos and images work well on both platforms
- ✓Carousel/multi-image posts are supported on both platforms
- ✓Text-based posts work natively on both platforms
- ✓Captions fit within the destination's character limit without truncation
- ✓Links in posts are supported on both platforms
Needs Adaptation
- ~Video aspect ratio needs to change from 9:16 to 16:9
- ~Hashtag strategy differs between Threads and LinkedIn
Doesn't Transfer
- ✗Most content elements transfer successfully
Known Limitations
- ⚠Most Threads content works well on LinkedIn with minor formatting adjustments
Frequently Asked Questions
LinkedIn supports videos up to 10 minutes long, 5GB file size, in 16:9, 1:1, 9:16 aspect ratios. Captions can be up to 3,000 characters. Your Threads videos will fit within these limits.
Yes. PostOnce works with both personal and business accounts on both Threads and LinkedIn. Connect via OAuth authorization—your credentials are never stored.
Threads's peak engagement is 7-9 AM, 12-2 PM, 6-9 PM, while LinkedIn's peak is 7-8 AM, 12 PM, 5-6 PM (weekdays). PostOnce can publish to LinkedIn at optimal times regardless of when you post on Threads.
Hashtag-like topics supported; one topic tag per post. For LinkedIn: 3-5 industry-relevant hashtags recommended for reach. PostOnce lets you customize hashtag handling—keep them, remove them, or set platform-specific hashtag strategies.
PostOnce handles unlimited crossposting within your plan's limits. Every time you post on Threads, it's automatically shared to LinkedIn—no per-post limits on automation.
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