Automatically Post Facebook to YouTube: Complete Guide
Set up once and automatically upload, share, and post your Facebook content to YouTube forever.
Stop manually posting to multiple platforms. Let automation handle your YouTube distribution while you focus on creating great content.
7-day free trial • Cancel anytime
Facebook reaches Millennials and Gen X while YouTube connects with Broad demographic, skews male 18-34, letting you expand to a new audience segment. While the content formats differ, repurposing Facebook content for YouTube helps you reach audiences who prefer a different medium. Whether you want to auto-post everything or filter by hashtag, this guide covers everything about Facebook to YouTube automation. Learn how to crosspost from Facebook to YouTube or repurpose your content for maximum reach.
Facebook to YouTube Content Compatibility
Video
Direct Transfer
Images
Not Supported
Text/Captions
Truncated
Facebook vs YouTube: Platform Specs
| Spec | YouTube | |
|---|---|---|
| Caption Limit | 63,206 chars | 5,000 chars |
| Max Video Length | 4h | 12h |
| Preferred Aspect Ratio | 16:9 | 16:9 |
| Max Video File Size | 10GB | 256GB |
| Carousel Support | Up to 10 items | No |
| Hashtag Strategy | Unlimited | Up to 60 |
| Link Support | Yes | Yes |
| Primary Audience | 25-54 | 18-49 |
Why Automate Facebook to YouTube?
Build a consistent brand presence across Facebook and YouTube with automated distribution
Grow your YouTube following by consistently sharing your best Facebook content
Manual Posting vs Automated Distribution
Manual Method
- ✗Upload the same video to YouTube after posting to Facebook
- ✗Copy and reformat captions for each platform
- ✗Constantly context-switch between apps
- ✗Risk forgetting to post to YouTube
- ✗Spend 10-15 minutes per post managing distribution
- ✗Miss peak posting times on YouTube
PostOnce Automation
- ✓Post to Facebook like normal—we handle YouTube
- ✓Captions automatically adapted for YouTube
- ✓Stay in your favorite platform's workflow
- ✓Every Facebook post automatically appears on YouTube
- ✓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 Facebook to YouTube Automation
Connect Facebook and YouTube
Link both social accounts to PostOnce using secure OAuth authorization.
Facebook uses standard OAuth and YouTube requires standard authorization. Both connect in seconds.
Configure your automation rules
Choose to crosspost everything or filter by hashtags, content type, or custom rules.
Since Facebook allows longer captions (63,206 chars) than YouTube (5,000 chars), you may want to review caption truncation settings.
Post on Facebook as usual
Create content on Facebook and PostOnce handles YouTube distribution.
Both platforms use 16:9 format, so your content transfers seamlessly.
Flexible Automation Options
Control exactly how your Facebook content gets distributed to YouTube with powerful automation rules.
Post Everything
Every Facebook post automatically goes to YouTube
Filter by Hashtag
Use specific hashtags to control what gets crossposted to YouTube
Custom Rules
Set advanced filters based on your Facebook to YouTube workflow needs
Most creators use hashtag filtering to maintain control over their crossposting workflow. For instance, you might want all your Facebook tutorials to go to YouTube, but keep personal content separate. Simply add a specific hashtag like #autopost to your Facebook caption, and only those posts will be distributed.
If you want to repurpose content from Facebook to YouTube, you can also customize how captions, formats, and media are adapted for each platform's unique audience and requirements.
What to Expect
Works Well
- ✓Both platforms prefer 16:9 video, so no reformatting needed
- ✓Links in posts are supported on both platforms
Needs Adaptation
- ~Captions may need shortening (63,206 chars to 5,000 chars)
- ~Hashtag strategy differs between Facebook and YouTube
- ~Carousels from Facebook need to be converted to single images or video
Doesn't Transfer
- ✗Stories format doesn't exist on YouTube
Known Limitations
- ⚠Captions over 5,000 characters will be shortened for YouTube
- ⚠Facebook Stories cannot be crossposted to YouTube
- ⚠Facebook carousels will be posted as single images on YouTube
Frequently Asked Questions
YouTube supports videos up to 12 hours long, 256GB file size, in 16:9, 9:16, 1:1 aspect ratios. Captions can be up to 5,000 characters. Your Facebook videos will fit within these limits.
Yes. PostOnce works with both personal and business accounts on both Facebook and YouTube. Connect via OAuth authorization—your credentials are never stored.
Facebook's peak engagement is 1-4 PM, 6-9 PM, while YouTube's peak is 12-4 PM, 8-11 PM. PostOnce can publish to YouTube at optimal times regardless of when you post on Facebook.
Hashtags have minimal impact; 1-2 relevant hashtags max. For YouTube: Up to 60 hashtags allowed; 3-5 relevant hashtags recommended in description. 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 Facebook, it's automatically shared to YouTube—no per-post limits on automation.
Ready to Automate Your Facebook to YouTube?
Join thousands of creators who've automated their social media distribution. Set up once, post forever.
7-day free trial • No credit card required • Cancel anytime