Free tool

Bluesky character counter

Check a Bluesky post against the 300-character limit as you type. Your text stays in this browser.

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300 left

0 words · 0 lines

Bluesky character limit

A Bluesky post can have up to 300 characters.

How this counter counts

Bluesky counts graphemes, the characters you see, so an emoji or a flag counts as 1.

Bluesky image sizes

ImageSizeNotes
Post imagesNo size publishedUp to four images per post.

Bluesky does not publish recommended pixel sizes. PostDelegate scales an image down before posting it to Bluesky if the file is larger than about 1 MB.

Source, checked November 2026: Bluesky developer docs: posts

Also for Bluesky: the free Bluesky image resizer.

Schedule Bluesky posts

PostDelegate publishes to Bluesky today. Plan posts on one calendar and schedule them with the Bluesky scheduler, or have your assistant draft them: Claude · ChatGPT · Claude Code · Codex · Cursor · Gemini CLI. Start your 7-day free trial, no card needed.

Questions

What is the Bluesky character limit?
A Bluesky post can have up to 300 characters.
Do emoji and links count on Bluesky?
Bluesky counts graphemes, the characters you see, so an emoji or a flag counts as 1.
Is my text saved anywhere?
No. The count runs in your browser. Nothing you type is sent or stored.
Is this the exact count the platform uses?
It follows the counting rule above and is a close planning estimate. Bluesky checks the final post itself.

More free character counters

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Or check every network at once with the caption checker, and see all free tools.

Try it for 7 days

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