Crosspost from Pinterest to TikTok Automatically
Auto post Pinterest to TikTok instantly — no downloads, no re-uploads, no manual work. Just publish on Pinterest and your content appears on TikTok, with captions and media adapted for the destination when needed.
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Features
How PostOnce Handles It
Set up Pinterest to TikTok crossposting once. PostOnce automates the rest.
Easy Pinterest Crossposting Setup
Connect your Pinterest and TikTok 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 TikTok
When you crosspost Pinterest to TikTok, PostOnce uploads the actual video file — not a link, not a preview.
Your Pinterest content appears as a native TikTok post, indistinguishable from content uploaded directly.
Start your free trialCustom Crosspost Rules
Not every Pinterest post belongs on TikTok. Set hashtag filters, content type rules, or account-level controls to choose what gets crossposted.
Only the content you want on TikTok ends up there.
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Auto Post to Multiple Platforms
Don't stop at Pinterest to TikTok crossposting. Auto post your Pinterest 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 Pinterest account and automatically crossposts new content to TikTok.
No scheduling, no batching. Publish on Pinterest and it appears on TikTok within minutes — fully automated Pinterest to TikTok posting.
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Pinterest vs TikTok at a Glance
| Spec | TikTok | |
|---|---|---|
| Caption Limit | 500 chars | 4,000 chars |
| Max Video Length | 15min | 10min |
| Preferred Aspect Ratio | 2:3 | 9:16 |
| Max Video File Size | 2GB | 4GB |
| Carousel Support | Up to 5 items | Up to 35 items |
| Hashtag Strategy | Up to 20 | Unlimited |
| Link Support | Yes | No |
| Primary Audience | 18-44 | 16-34 |
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Under 60 seconds. Connect both your Pinterest and TikTok accounts, choose your filter rules, and you're done. New Pinterest posts will automatically appear on TikTok.
PostOnce automatically adapts your 2:3 Pinterest videos to TikTok's preferred 9:16 format, ensuring they look native.
Yes. Use hashtag filters to control which posts crosspost. For example, add #crosspost to Pinterest captions and only those posts will go to TikTok. Or exclude specific hashtags to skip certain content.
Your captions transfer in full since TikTok supports up to 4,000 characters, which accommodates Pinterest's 500 character limit.
Related Crossposting Workflows
Crosspost Pinterest to Instagram
Set up automatic crossposting from Pinterest to Instagram.
Crosspost Pinterest to YouTube
Set up automatic crossposting from Pinterest to YouTube.
Crosspost Pinterest to Facebook
Set up automatic crossposting from Pinterest to Facebook.
Repurpose Pinterest for TikTok
Adapt this workflow for clips, captions, and content reuse.
Crosspost TikTok to Pinterest
Go the other direction.
Pinterest crossposting guides
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All crosspost guides
Browse every platform workflow
Start Crossposting Pinterest to TikTok
Connect your Pinterest and TikTok accounts and start crossposting in minutes. No technical setup required.
Get Started FreeFree 7-day trial · Cancel anytime