Bluesky Character Counter
Bluesky caps posts at 300 characters — slightly more than Twitter's 280, and the same as Reddit titles. Bios are surprisingly generous at 256 characters. The counter below tracks every character in real time.
Bluesky Character Limits Cheatsheet
| Field | Character limit |
|---|---|
| Post | 300 |
| Bio | 256 |
| Display name | 64 |
| Handle | 253 |
Why does Bluesky have this character limit?
Bluesky's 300-character limit was a deliberate nudge above Twitter's 280, set early in the platform's development. The AT Protocol (Bluesky's underlying network) doesn't enforce a hard cap — individual clients can theoretically post longer — but the official Bluesky app enforces 300 to keep the experience consistent.
Tips for Writing Better Bluesky Content
1300 is tight — make every word count
20 characters more than Twitter is not enough to change your writing strategy. Treat Bluesky posts like tight tweets.
2Bluesky handles double as domain names
Your handle can be either bluesky-issued (@username.bsky.social) or a verified custom domain (@you.com). Custom domain handles fit within 253 characters total.
3Bios run to 256 — use the room
Unlike Twitter's 160, Bluesky gives you 256 characters for your bio. Treat it as a mini About page.
4Threads are first-class citizens
Bluesky's UI surfaces threads prominently. If you need more than 300 characters, post a 2–4 post thread.
5No quote-tweet rate limits
Bluesky lets you quote-post freely without the rate limits Twitter has imposed. Use this to add context across multiple short posts.
Need More Than a Character Count?
Our main Character Counter shows word count, sentence count, reading time, and a full statistical breakdown of your text — alongside live character counts for every major platform.
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