How to post to X and Bluesky at the same time

X and Bluesky do not take quite the same post. X stops text at 280 characters while Bluesky allows 300.

X vs Bluesky: what's different

	X	Bluesky
Character cap	280	300
Images per post	4	4
Needs media	No	No
Long text becomes a thread	Yes	Yes
Comments inbox in fanout	Yes	Yes
Analytics in fanout	Yes	No

What fits both

Text: while both networks use the master draft, the counter holds you to the stricter cap, 280 characters (X). Give Bluesky its own tab to use its full 300.
Images: both take up to 4, so the same set goes to both.
Media: neither network requires it, so text-only posts are fine. One video per post, and it cannot be mixed with images.
Over-limit text: it becomes a reply thread on both, up to 10 posts each. Because the caps differ, the part counts differ too.

Post to both in fanout

Connect X and Bluesky. Each login happens on the network's own permission screen.
Open the composer, write the master draft and select both accounts.
Check each tab. Both inherit the master text until you edit one; AI tailoring suggests a version for each, which you review before anything is published.
Attach media once. The same files go to both networks that accept them.
Publish now, or pick a date and time to schedule it to both.

Tips for this pair

A 1,000-character text becomes 4 posts on X and 4 posts on Bluesky, split at sentence breaks.
Analytics cover X but not Bluesky.

Try fanout free for 3 days.

Card required, cancel anytime, no charge during the trial.

Start free trial

Frequently asked questions

Can I post the same thing to X and Bluesky?

Yes, if it fits both. Write one master draft, select both accounts, and fanout publishes a native post to each. The master text must fit the stricter cap of 280 characters, or you give Bluesky its own version.

What's the character limit when posting to X and Bluesky?

X allows 280 characters and Bluesky allows 300. While they share the master text, the composer uses the lower one, 280.

Do X and Bluesky need images?

Neither requires media. Image caps are 4 on X and 4 on Bluesky.

Can I schedule to X and Bluesky at once?

Yes. Pick a date and time in the composer and the post is scheduled to both accounts together, or publish now instead.

Schedule posts to X · Schedule posts to Bluesky · X character counter · Bluesky character counter · Cross-post to multiple social networks · Thread splitter

More pairs: X and Threads · Bluesky and Threads · LinkedIn and X · Telegram and X

Last updated 2026-10-25.