Crosspost from TikTok to Facebook Automatically
Auto post TikTok to Facebook instantly — no downloads, no re-uploads, no manual work. Just publish on TikTok and your content appears on Facebook.
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The reality of posting TikToks to Facebook Reels
! TikTok watermark reduces reach on Facebook Reels too
+ ! TikTok has a native share button to Facebook but it only shares a link, not native video
+ ! Facebook and TikTok are separate logins with no automatic sync
+ ! Facebook audience skews older than TikTok
↓ There's an easier way
What You Need to Know
How creators crosspost TikToks to Facebook today
Most creators handle this the same way they handle TikTok-to-Instagram: download the watermark-free version of the TikTok (from drafts before publishing, or via a tool like SnapTik), then manually upload it to Facebook as a Reel.
Make your Facebook Reels look native
Facebook Reels that perform well share three characteristics that differ from TikTok defaults.
Skip the manual work with PostOnce
PostOnce connects TikTok to Facebook and automates the native video crosspost.
When you post a TikTok, PostOnce downloads the watermark-free version and uploads it directly to your Facebook page as a Reel — not a link, not a preview card.
A real Reel that plays in the feed.
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Features
How PostOnce Handles It
Set up TikTok to Facebook crossposting once. PostOnce automates the rest.
Easy TikTok Crossposting Setup
Connect your TikTok and Facebook 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 Facebook
When you crosspost TikTok to Facebook, PostOnce uploads the actual video file — not a link, not a preview.
Your TikTok content appears as a native Facebook post, indistinguishable from content uploaded directly.
Start your free trialCustom Crosspost Rules
Not every TikTok post belongs on Facebook. Set hashtag filters, content type rules, or account-level controls to choose what gets crossposted.
Only the content you want on Facebook ends up there.
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Auto Post to Multiple Platforms
Don't stop at TikTok to Facebook crossposting. Auto post your TikTok 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 TikTok account and automatically crossposts new content to Facebook.
No scheduling, no batching. Publish on TikTok and it appears on Facebook within minutes — fully automated TikTok to Facebook posting.
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TikTok vs Facebook at a Glance
| Spec | TikTok | |
|---|---|---|
| Caption Limit | 4,000 chars | 63,206 chars |
| Max Video Length | 10min | 4h |
| Preferred Aspect Ratio | 9:16 | 16:9 |
| Max Video File Size | 4GB | 10GB |
| Carousel Support | Up to 35 items | Up to 10 items |
| Hashtag Strategy | Unlimited | Unlimited |
| Link Support | No | Yes |
| Primary Audience | 16-34 | 25-54 |
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Frequently Asked Questions
Under 60 seconds. Connect both your TikTok and Facebook accounts, choose your filter rules, and you're done. New TikTok posts will automatically appear on Facebook.
PostOnce automatically adapts your 9:16 TikTok videos to Facebook's preferred 16:9 format, ensuring they look native.
Yes. Use hashtag filters to control which posts crosspost. For example, add #crosspost to TikTok captions and only those posts will go to Facebook. Or exclude specific hashtags to skip certain content.
Your captions transfer in full since Facebook supports up to 63,206 characters, which accommodates TikTok's 4,000 character limit.
Start Crossposting TikTok to Facebook
Connect your TikTok and Facebook accounts and start crossposting in minutes. No technical setup required.
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