Post to Bluesky from your Mac and iPhone
Post to Bluesky from a real Mac app, threads included.
Live Free for your first account
What PostOnly enforces for Bluesky
| Character limit | 300 |
|---|---|
| Images per post | 4 |
| Auto-threading | Yes, over-limit posts are split into a sequence of posts |
| Title field | No |
| Image required | No |
Image rules
- Up to 4 images per post
- Each image under 1 MB
- Images are resized and recompressed to JPEG to fit the 1 MB cap
Posting to Bluesky with PostOnly
Bluesky is one of the networks PostOnly was built around: a 300-character limit, four images, and real reply threads. Write past the limit and PostOnly splits the post into a thread where you tell it to, with the break marker visible as you type.
Links are posted as rich facets, so they stay clickable.
How to connect Bluesky
- In PostOnly choose Add Account → Bluesky.
- Enter a display name and your handle (for example
you.bsky.social). - Enter an app password. Create one in the Bluesky app under Settings → Privacy and Security → App Passwords. Never your main password.
- Save. The account appears in the Destinations sidebar.
Good to know
- App passwords can be revoked from Bluesky at any time; PostOnly will ask you to reconnect.
- Custom domains as handles work. Enter the full handle.
- Bluesky counts graphemes, not bytes; PostOnly's counter matches it.
Bluesky questions
Do I have to use an app password?
Yes. PostOnly asks for an app password, which you create in Bluesky under Settings → Privacy and Security → App Passwords. App passwords can be revoked without changing your main password.