Crosspost from Facebook to YouTube Automatically
Auto post Facebook to YouTube instantly — no downloads, no re-uploads, no manual work. Just publish on Facebook and your content appears on YouTube.
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Moving Facebook videos to YouTube: manual every time
! No native Facebook-to-YouTube integration or crosspost button exists
+ ! Facebook videos must be downloaded as MP4 before uploading to YouTube
+ ! Facebook Live recordings are available for download from your page's video library
+ ! Facebook Reels cannot be directly pushed to YouTube — manual download required
+ ! YouTube requires title, description, tags, and a thumbnail — Facebook posts don't have these
↓ There's an easier way
What You Need to Know
How to get Facebook videos onto YouTube
For a regular Facebook video or Reel: go to the video on your page, click the three-dot menu, and select Download.
This gives you the MP4.
For Facebook Live: in your page's Publishing Tools, go to Video Library, find the Live recording, and download it.
Once you have the file: upload it to YouTube Studio.
Write a proper YouTube title with keywords (not your Facebook post caption), write a description with chapters if it's long, add tags, and upload a custom thumbnail.
YouTube's algorithm needs all of this metadata to distribute the video.
Without it, the upload sits invisible.
Adapting Facebook content for YouTube's format
Facebook videos are often horizontal (16:9 or 1:1) which translates fine to YouTube.
The bigger adjustment is pacing and style: YouTube audiences expect slightly longer intros and clearer content structure than Facebook's quick-scroll format.
If your Facebook video has a call-to-action telling viewers to 'like this page,' swap it for 'subscribe.' Add YouTube end screens and cards after upload — Facebook has none of these.
If the original video is short-form (under 60 seconds), upload it as a YouTube Short instead of a regular video for better reach.
PostOnce automates Facebook-to-YouTube uploads
PostOnce monitors your Facebook page and uploads new videos to YouTube automatically — with a properly formatted title, description, and tags generated from your Facebook post content.
Facebook Reels get uploaded as YouTube Shorts.
You post on Facebook once, and YouTube gets a complete, properly structured upload without any manual work.
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Features
How PostOnce Handles It
Set up Facebook to YouTube crossposting once. PostOnce automates the rest.
Easy Facebook Crossposting Setup
Connect your Facebook and YouTube 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 YouTube
When you crosspost Facebook to YouTube, PostOnce uploads the actual video file — not a link, not a preview.
Your Facebook content appears as a native YouTube post, indistinguishable from content uploaded directly.
Start your free trialCustom Crosspost Rules
Not every Facebook post belongs on YouTube. Set hashtag filters, content type rules, or account-level controls to choose what gets crossposted.
Only the content you want on YouTube ends up there.
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Auto Post to Multiple Platforms
Don't stop at Facebook to YouTube crossposting. Auto post your Facebook 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 Facebook account and automatically crossposts new content to YouTube.
No scheduling, no batching. Publish on Facebook and it appears on YouTube within minutes — fully automated Facebook to YouTube posting.
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Facebook vs YouTube at a Glance
| 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 |
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Under 60 seconds. Connect both your Facebook and YouTube accounts, choose your filter rules, and you're done. New Facebook posts will automatically appear on YouTube.
Yes, both platforms use 16:9 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 Facebook captions and only those posts will go to YouTube. Or exclude specific hashtags to skip certain content.
PostOnce intelligently adapts your captions from Facebook's 63,206 character limit to fit YouTube's 5,000 character limit, preserving your key message.
Start Crossposting Facebook to YouTube
Connect your Facebook and YouTube accounts and start crossposting in minutes. No technical setup required.
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