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Crosspost from Reddit to Bluesky Automatically

Auto post Reddit to Bluesky instantly — no downloads, no re-uploads, no manual work. Just publish on Reddit and your content appears on Bluesky.

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Reddit and Bluesky share an audience — but not a bridge

! Both platforms appeal to similar tech-forward, independent-minded audiences

+ ! Bluesky has no built-in Reddit integration

+ ! Reddit's crosspost feature only works within Reddit

+ ! Subreddit rules still apply — self-promotional posts from Bluesky accounts may be removed

= too much manual work

↓ There's an easier way

What You Need to Know

01

How active users keep Reddit and Bluesky content aligned

The straightforward approach: write your Bluesky skeet, then adapt the core idea into a Reddit text post for the relevant subreddit.

Or post on Reddit first, then skeet the link with a one-line take on Bluesky.

Bluesky's link preview renders Reddit posts reasonably well.

For crossposting automation, IFTTT can trigger a Bluesky post when you post on Reddit, though the formatting requires testing.

Manual crossposting between these two platforms is faster than you think — the tone is often more compatible than any other pairing.

02

Making your Reddit posts feel native on Bluesky (and vice versa)

Reddit text posts tend to be longer and more detailed.

A skeet is 300 characters.

When moving Reddit content to Bluesky, extract the sharpest sentence or the key question and make that the skeet.

Add the Reddit link.

Bluesky followers who are also Reddit users will appreciate the source.

When moving Bluesky skeets to Reddit, expand them into proper subreddit posts — add context, a clear question or argument, and make sure you are posting to a subreddit where the topic is actually relevant.

03

PostOnce syncs your Reddit activity to Bluesky automatically

PostOnce connects Reddit and Bluesky and handles cross-platform posting so you are not manually managing both.

Post on Reddit, and PostOnce pushes the content to your Bluesky account.

Same idea, both communities, no duplication effort.

Skip the manual work

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Features

How PostOnce Handles It

Set up Reddit to Bluesky crossposting once. PostOnce automates the rest.

Easy Reddit Crossposting Setup

Connect your Reddit and Bluesky 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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Setup flow

Native Video Upload to Bluesky

When you crosspost Reddit to Bluesky, PostOnce uploads the actual video file — not a link, not a preview.

Your Reddit content appears as a native Bluesky post, indistinguishable from content uploaded directly.

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Screenshot: Native post

Custom Crosspost Rules

Not every Reddit post belongs on Bluesky. Set hashtag filters, content type rules, or account-level controls to choose what gets crossposted.

Only the content you want on Bluesky ends up there.

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Filter rules

Auto Post to Multiple Platforms

Don't stop at Reddit to Bluesky 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 Bluesky.

No scheduling, no batching. Publish on Reddit and it appears on Bluesky within minutes — fully automated Reddit to Bluesky posting.

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Automation

Reddit vs Bluesky at a Glance

SpecRedditBluesky
Caption Limit40,000 chars300 chars
Max Video Length15min1min
Preferred Aspect Ratio16:916:9
Max Video File Size1GB50MB
Carousel SupportUp to 20 itemsUp to 4 items
Hashtag StrategyNot usedUnlimited
Link SupportYesYes
Primary Audience18-3920-40

Frequently Asked Questions

Under 60 seconds. Connect both your Reddit and Bluesky accounts, choose your filter rules, and you're done. New Reddit posts will automatically appear on Bluesky.

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 Reddit captions and only those posts will go to Bluesky. Or exclude specific hashtags to skip certain content.

PostOnce intelligently adapts your captions from Reddit's 40,000 character limit to fit Bluesky's 300 character limit, preserving your key message.

Start Crossposting Reddit to Bluesky

Connect your Reddit and Bluesky accounts and start crossposting in minutes. No technical setup required.

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