Bluesky Post Formatter & Splitter
Compose posts within Bluesky's official 300-character limit, inspect AT Protocol facets, and preview live feed typography.
What is the Character Limit on Bluesky?
The official character limit on Bluesky is 300 characters (graphemes) per post. Powered by the open AT Protocol (Authenticated Transfer Protocol), Bluesky structures clickable elements like @handles, web links, and #tags as facets with byte offsets. While links and handles count towards the 300-character ceiling in the standard composer, keeping text within 280-300 characters ensures seamless cross-posting across both X (Twitter) and Bluesky.
Key Capabilities & Features
300-Char Grapheme Meter
Real-time meter tracking character length with color alerts when you exceed the 300-character boundary.
Rich Facet Detection
Automatically parses AT Protocol mentions (@name.bsky.social), URLs, and hashtags for syntax compliance.
Thread Auto-Splitter
Splits long essays into sequential, numbered 300-character posts without cutting sentences in half.
Frequently Asked Questions (FAQ)
What is the difference between Bluesky and Twitter limits?
Twitter/X allows 280 characters for standard users, whereas Bluesky allows 300 characters. Posts crafted within 280 characters can be cross-posted between both networks without modification.
Can I use custom domains as a Bluesky handle?
Yes! The AT Protocol natively supports DNS verification, allowing creators and businesses to use custom domains (e.g. @nextools.org) as their verified username.
Does Bluesky support hashtags?
Yes, Bluesky supports clickable hashtags (#buildinpublic). They function as custom feed queries across the network.
Is this tool free?
Yes, 100% free with no registration or API keys required.