Tweets fit Bluesky
Bluesky allows 300 characters, so most tweets post as they are. Links count in full once expanded. Premium posts over 300 are cut; turn on Rewrite caption with AI to shorten them instead.
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Crosspost Twitter to Bluesky automatically
There's no built-in way to post to X and Bluesky at the same time. PostOnce posts each new tweet to Bluesky for you, photos and videos included, with no code to run.
- No credit card
- 3 min setup
Tweet on XBlueskyPosted
Updated
How to crosspost from Twitter to Bluesky
No script or extension to keep running. Of the tweets PostOnce sent right away in the last 30 days, half were on Bluesky within 17 minutes.
Connect X
Sign in to the X account you tweet from.
Connect Bluesky
Use your handle and a Bluesky App Password, not your main password.
Turn on the workflow
Pick text posts, photos, videos or all three.
2 ways to post on X and Bluesky at the same time
By hand, for every tweet
- Post the tweet on X.
- Copy the text and save any photos or video.
- Paste it into Bluesky and upload the media again.
With PostOnce, once
- Connect X and Bluesky.
- Tweet as usual.
- Each new tweet posts to Bluesky within minutes.
What goes from Twitter to Bluesky
Photos and videos
Up to 4 photos, or one video up to 10 minutes, so standard X videos fit. Premium videos over 10 minutes can't post to Bluesky.
Real, clickable links
PostOnce swaps t.co links for the real URL, and links and hashtags are clickable on Bluesky. @mentions of X handles post as plain text.
Your tweets, not the noise
Only your own new tweets go. Replies and retweets stay on X, and quote tweets go only if you turn them on. A thread posts its first tweet.
Only the posts you pick
Send only posts with a hashtag or keyword, or skip the ones that have one.
Older posts too
Turn on existing posts to send older tweets, on paid plans and the free trial. Tweets from old threads can arrive as separate posts.
Twitter to Bluesky crossposting questions
Can you post to X and Bluesky at the same time?
Not from X or Bluesky themselves. With PostOnce you keep tweeting as usual and each new tweet posts to Bluesky within minutes.
Do I need to code or run a script to crosspost tweets to Bluesky?
No. Scripts and browser extensions can crosspost, but you have to keep them running. PostOnce runs in the cloud: connect both accounts once and it keeps posting.
Can I move my old tweets to Bluesky?
Yes. Turn on existing posts and PostOnce sends your older tweets, on paid plans and the free trial. Your followers don't move with them.
What happens to my threads?
PostOnce posts the first tweet of each new thread. The replies under it stay on X.
What happens to tweets longer than 300 characters?
They're cut at 300 characters. Turn on Rewrite caption with AI and PostOnce shortens them to two clean sentences instead.
How do I connect Bluesky?
Sign in with your Bluesky handle and an App Password, which you create in Bluesky's settings. PostOnce never needs your main password.
How fast do tweets show up on Bluesky?
PostOnce checks X about every 25 minutes when you've tweeted in the last 3 days, and less often when you're quiet. Of the tweets sent right away in the last 30 days, 97% were live on Bluesky within 30 minutes.
More ways to crosspost X and Bluesky
Start posting your tweets to Bluesky
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