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Free tool

Bluesky caption generator

To write a Bluesky caption, type what the post is about and this generator gives several caption starters, each built as a casual line similar to X, without any character-limit urgency. They come from templates, not AI, so pick the one closest to your voice, add your own details and links, then post or schedule it. Bluesky posts take up to 300 characters.

Template-based suggestions, not AI-written — pick one and edit it to fit.

Type a topic above to see caption suggestions.

How do you use the Bluesky caption generator?

  1. Describe what you’re posting about. Type a short topic or product description related to your Bluesky post — a few words is enough.
  2. Read the Bluesky captions. Each result fills your topic into a different caption formula built for Bluesky’s tone and typical caption length.
  3. Pick the closest match. Scan the list for the hook and structure closest to what you actually want to say on Bluesky.
  4. Edit before you post. These are starting points, not finished captions — add your own specifics, links and voice before publishing.
  5. Copy and schedule. Copy the caption in one click, then paste it into SkedCast’s composer and schedule your Bluesky post.

What are the Bluesky rules to know?

The limits SkedCast’s composer checks for Bluesky before a post goes out, read from the same rules table the composer uses.

Text limit300 characters
How length is countedAs you see it: one emoji or accented letter counts as one character
HashtagsNo hashtag cap enforced
Where the caption is cut off in the feedNot truncated in the feed
Text-only postsAllowed
Links in the textA pasted URL shows a link-preview card
First commentSupported: SkedCast can post a first comment right after publishing
Imagesup to 4 per post · JPEG, PNG, WEBP · max 1 MB each
Videoup to 1 per post · MP4, MPEG, WEBM, MOV · up to 3 minutes · max 300 MB · 9:16, 16:9 or 1:1 recommended

Good to know

  • Bluesky has no polls.
  • Bluesky has no Stories, Reels, or Shorts.
  • Bluesky has no document/PDF attachments.
  • Bluesky posts have no title field.
  • Bluesky has no native post scheduling — SkedCast schedules and publishes at the chosen time.

What does it look like in practice?

A long post on Bluesky

Bluesky does not fold the text behind "…more", so a 280-character post shows in full; the hard stop is 300 characters.

Filling in one topic several ways

Type a topic like "spring collection launch" once and get 6 to 8 different Bluesky caption starters built from that same topic — a question hook, a bold claim and more.

Bluesky caption generator FAQ

Which caption formulas does the Bluesky generator use?
A mix of hooks, statements and calls-to-action shaped for Bluesky — a casual line similar to X, without any character-limit urgency — pulled from common caption patterns rather than written fresh by a language model.
Can I post text only on Bluesky?
Yes. Bluesky accepts a text-only post, up to 300 characters.
Will Bluesky cut off a long caption?
Bluesky does not truncate the text in the feed, so the whole post shows; the limit that matters is the 300-character maximum.
How many hashtags can a Bluesky post have?
SkedCast enforces no hashtag cap for Bluesky; the practical limit is the 300-character text limit and what reads well.
What happens to a link in a Bluesky post?
The link counts at its real length, and Bluesky shows a link-preview card for it.
Does this Bluesky caption generator use AI?
No. It fills your topic into a set of proven Bluesky caption templates entirely in your browser — no language model writes or personalizes the text, so treat every result as a starting point to edit.

Ready to broadcast everywhere?

Sign up free — no credit card. You land on the Free plan, and you can start a one-time 7-day Studio trial from your workspace whenever you are ready. Connect your first accounts, import a batch, and watch one post fan out across every platform.