Crosspost from Threads to TikTok Automatically
Auto post Threads to TikTok instantly — no downloads, no re-uploads, no manual work. Just publish on Threads and your content appears on TikTok.
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Threads posts and TikToks live in different universes
! Threads is text-first; TikTok is video-only — major format incompatibility
+ ! No native integration between Threads and TikTok
+ ! Threads posts can inspire TikTok content but cannot be directly uploaded
+ ! IFTTT supports Threads-TikTok integration for text notifications, not video posting
↓ There's an easier way
What You Need to Know
How creators use Threads to fuel their TikTok output
The workflow that actually works: post a take or question on Threads, gauge the reply engagement, then turn the most-responded-to idea into a TikTok video.
Your Threads audience validates the topic before you invest time filming.
Some creators film a TikTok reaction to one of their own Threads posts — holding up the phone to show the text, then riffing on it.
Others screenshot Threads posts and use them as B-roll text overlays in a talking-head video.
Every version requires creating video content separately — there is no shortcut around that.
Making your TikTok feel native, not like a Threads screenshot
TikTok viewers scroll past static screenshots.
If you are adapting Threads content, lead with the spoken hook in the first two seconds — say the key line out loud before any visual appears.
Keep the video under 60 seconds.
Use TikTok's captions and on-screen text to reinforce key points, not to reproduce the whole Threads post.
The tone should feel like you are telling someone the idea, not reading them a post.
TikTok rewards personality and delivery, not text density.
PostOnce connects Threads and TikTok automatically
PostOnce monitors your Threads account and distributes your posts to TikTok without manual effort.
Post on Threads — PostOnce handles the TikTok side.
No app switching, no copy-paste, no missed cross-posting.
Set it up once and keep your focus on creating.
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Features
How PostOnce Handles It
Set up Threads to TikTok crossposting once. PostOnce automates the rest.
Easy Threads Crossposting Setup
Connect your Threads 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 Threads to TikTok, PostOnce uploads the actual video file — not a link, not a preview.
Your Threads content appears as a native TikTok post, indistinguishable from content uploaded directly.
Start your free trialCustom Crosspost Rules
Not every Threads 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 Threads to TikTok crossposting. Auto post your Threads 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 Threads account and automatically crossposts new content to TikTok.
No scheduling, no batching. Publish on Threads and it appears on TikTok within minutes — fully automated Threads to TikTok posting.
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Threads vs TikTok at a Glance
| Spec | Threads | TikTok |
|---|---|---|
| Caption Limit | 500 chars | 4,000 chars |
| Max Video Length | 5min | 10min |
| Preferred Aspect Ratio | 9:16 | 9:16 |
| Max Video File Size | 1GB | 4GB |
| Carousel Support | Up to 20 items | Up to 35 items |
| Hashtag Strategy | Up to 1 | Unlimited |
| Link Support | Yes | No |
| Primary Audience | 18-34 | 16-34 |
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Under 60 seconds. Connect both your Threads and TikTok accounts, choose your filter rules, and you're done. New Threads posts will automatically appear on TikTok.
Yes, both platforms use 9:16 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 Threads 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 Threads's 500 character limit.
Start Crossposting Threads to TikTok
Connect your Threads and TikTok accounts and start crossposting in minutes. No technical setup required.
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