Bluesky limitations
Bluesky's open protocol enforces a 300-character limit and modest media caps. Engagement data is public, but there are no view counts at all.
Publishing limits
The limits Bluesky applies to posts published through its official API. Posty checks every one of these while you compose.
| Limit | Value |
|---|---|
| Text length | 300 characters |
| Images | up to 4 per post, 1.9 MB each |
| Video | one MP4 up to 95.4 MB (no mixing with images) Bluesky caps videos around 3 minutes in its apps. |
Rows marked Posty are current Posty product choices rather than hard platform rules.
Analytics
Likes, reposts, quote posts, replies and bookmarks per post, plus follower counts.
LikesCommentsSharesSaves
- Bluesky exposes no views, impressions or reach - to any tool. Engagement counts are the only signals that exist.
Inbox & messaging
Replies are public posts; Bluesky has no DM API for tools.
Good to know
- Bluesky has no native scheduling at the protocol level - Posty's scheduler is what publishes your post on time.
These limits apply to every tool
They come from Bluesky's official API, so no scheduler can exceed them. Posty validates against every limit on this page while you compose - if your post passes, Bluesky will accept it.
Try Posty free