Crosspost from Reddit to Threads Automatically
Auto post Reddit to Threads instantly — no downloads, no re-uploads, no manual work. Just publish on Reddit and your content appears on Threads.
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Reddit and Threads: same format, different cultures
! Threads requires an Instagram account, which Reddit users often do not have
+ ! Both platforms are text-first, making format adaptation easy
+ ! Reddit's community culture is very different from Threads' casual social feel
+ ! IFTTT supports Reddit-to-Threads integration
↓ There's an easier way
What You Need to Know
How creators move Reddit content to Threads
The basic workflow: take a well-performing Reddit post, strip the subreddit-specific formatting (no 'EDIT:', no lengthy context threads), and write the core idea as a Threads post.
Threads supports up to 500 characters — enough room for a concise take with some context.
IFTTT has a Reddit-to-Threads applet for automation, though it pushes raw content without reformatting.
For manual crossposting: summarize the key point of your Reddit post in 1-3 sentences and post it on Threads with a link to the full Reddit thread for anyone who wants the discussion.
Adapting Reddit tone for Threads audiences
Reddit readers are used to upvoting detailed, well-sourced responses.
Threads users are more accustomed to casual opinions and quick takes.
Strip the subreddit context, anonymous hedging, and 'throwaway account' caveats.
Write directly and personally — Threads works better with 'I think...' than 'Many people in r/X believe...' If the Reddit post was a question, reframe it as a statement or a hot take on Threads.
Engagement there comes from replies and reposts, not upvotes.
PostOnce handles Reddit-to-Threads distribution automatically
Connect Reddit and Threads in PostOnce and your posts flow between platforms without manual copying.
PostOnce picks up your Reddit content and distributes it to Threads automatically.
Stay in your posting flow — PostOnce handles the cross-platform reach.
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Features
How PostOnce Handles It
Set up Reddit to Threads crossposting once. PostOnce automates the rest.
Easy Reddit Crossposting Setup
Connect your Reddit and Threads 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 Threads
When you crosspost Reddit to Threads, PostOnce uploads the actual video file — not a link, not a preview.
Your Reddit content appears as a native Threads post, indistinguishable from content uploaded directly.
Start your free trialCustom Crosspost Rules
Not every Reddit post belongs on Threads. Set hashtag filters, content type rules, or account-level controls to choose what gets crossposted.
Only the content you want on Threads ends up there.
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Auto Post to Multiple Platforms
Don't stop at Reddit to Threads crossposting. Auto post your Reddit 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 Reddit account and automatically crossposts new content to Threads.
No scheduling, no batching. Publish on Reddit and it appears on Threads within minutes — fully automated Reddit to Threads posting.
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Reddit vs Threads at a Glance
| Spec | Threads | |
|---|---|---|
| Caption Limit | 40,000 chars | 500 chars |
| Max Video Length | 15min | 5min |
| Preferred Aspect Ratio | 16:9 | 9:16 |
| Max Video File Size | 1GB | 1GB |
| Carousel Support | Up to 20 items | Up to 20 items |
| Hashtag Strategy | Not used | Up to 1 |
| Link Support | Yes | Yes |
| Primary Audience | 18-39 | 18-34 |
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Under 60 seconds. Connect both your Reddit and Threads accounts, choose your filter rules, and you're done. New Reddit posts will automatically appear on Threads.
PostOnce automatically adapts your 16:9 Reddit videos to Threads's preferred 9:16 format, ensuring they look native.
Yes. Use hashtag filters to control which posts crosspost. For example, add #crosspost to Reddit captions and only those posts will go to Threads. Or exclude specific hashtags to skip certain content.
PostOnce intelligently adapts your captions from Reddit's 40,000 character limit to fit Threads's 500 character limit, preserving your key message.
Start Crossposting Reddit to Threads
Connect your Reddit and Threads accounts and start crossposting in minutes. No technical setup required.
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