Bluesky hashtag generator

1. 1

   Describe the post

   Enter a keyword, topic or short version of your Bluesky post, for example "fantasy book review" or "launching our open source CLI".

2. 2

   Generate

   Click Generate Bluesky hashtags now.

3. 3

   Pick one or two

   Choose the most specific tags that match your post and the community you want to reach.

4. 4

   Check them on Bluesky

   Tap or search each tag on Bluesky to see if people are actively using it.

5. 5

   Add them to your post

   Put the tags at the end of the post and check you are still under 300 characters.

Yes. Bluesky supports hashtags. A hashtag on Bluesky is a word or phrase that starts with #. It becomes a clickable link that opens search results for posts using that tag. Hashtags are used for topic discovery, custom feed curation and joining community conversations.

Bluesky hashtags work a little differently from hashtags on Instagram or TikTok. There is no single algorithmic feed that pushes tagged posts to strangers. Instead, people find tagged posts through search, through the hashtag page and through custom feeds that collect posts with certain tags. That makes choosing the right, specific tag more important than using many.

• Clickable topic links. Any # word in a Bluesky post becomes a clickable link. Tapping it shows recent and top posts using that tag, and you can choose to see that tag's posts from one account only.
• Custom feed integration. Many Bluesky custom feeds are built around specific hashtags or keywords. Feed creators decide which tags a feed tracks. Using a tag a feed tracks can get your post into that feed, even if you have few followers.
• Muting. People can mute a hashtag in their muted words settings, so tags tied to spam or spoilers can hide your post from some users.
• They count toward the 300-character limit. Each hashtag, including the # symbol, counts toward the post limit. A single tag is also widely reported to be limited to 64 characters. Keeping tags short matters more on Bluesky than on networks with longer posts.

Not in the way you follow an account. As of October 2026, the official Bluesky app has no widely documented button to follow a hashtag into your Following feed. There are two good workarounds:

1. 1Pin a custom feed built around the tag. Search for the topic in the Feeds section. Many communities run feeds that collect posts with their hashtag. Open the feed and pin it, and it shows up as a tab on your home screen.
2. 2Open the tag directly. Tap any hashtag in a post, or search for it, to see the latest posts that use it. Bookmark or revisit that search when you want to catch up.

For creators, this means the real reach of a hashtag depends on which feeds track it. Before you rely on a tag, check whether a popular feed collects it.

Bluesky added a Trending Topics feature in late 2024. It shows in search and Explore on mobile and in the sidebar on desktop. It lists topics people are talking about right now, which are not always hashtags. Users can turn it off in settings, and muted words also apply to it.

To find currently active hashtags for your niche:

• Search your topic. Type a broad term into Bluesky search and look at which hashtags appear in recent, popular posts.
• Browse topic custom feeds. Feeds in the Feeds tab are often built around active communities. Read through them to see which tags people use.
• Watch community tags. Tech, journalism, science, books and art communities on Bluesky have established tags, such as #OpenSource, #SciComm, #BookSky and #IndieWeb.

The generator suggests tags based on your topic. Check them against Bluesky search before posting to confirm people are using them.

One to two hashtags per post is the community norm. Bluesky's audience favors conversational, substantive posts. Heavy hashtag use reads as out of character. Many well-performing posts use one specific tag or none.

Specific hashtags outperform broad ones. #Tech has lots of competition and little targeted reach. #IndieHackers or #OpenSource reaches a clearer audience where a relevant post has a real chance to be seen. When the generator returns tags at different levels, pick the more specific ones.

Place hashtags at the end. Inline hashtags interrupt the sentence. Put them after the main text to keep the post readable. Example: "Just shipped a new feature for our API. Two weeks of iteration to get the error handling right. #OpenSource #IndieHackers"

Use CamelCase for multi-word tags. #IndieHackers is easier to read than #indiehackers, and screen readers can pronounce it correctly.

Starting points to show the style. Run your own topic through the generator for tags that fit your post.

• BooksCopy

  #BookSky #AmReading

• AcademiaCopy

  #AcademicSky #PhDLife

• ScienceCopy

  #SciComm #Astronomy

• Tech and devCopy

  #OpenSource #WebDev

• Indie gamesCopy

  #IndieDev #GameDev

• ArtCopy

  #Illustration #DigitalArt

• PhotographyCopy

  #Photography #StreetPhotography

• Small businessCopy

  #SmallBusiness #ShopSmall

A hashtag can help the right people find a post, but it can't make a weak post interesting. Write the post first, then choose one or two tags for it. If you are stuck on the words, the Bluesky post generator can turn your idea into a draft with hashtags included.

Posting the same update on X too? X has its own hashtag habits, so use the X (Twitter) hashtag generator for that version instead of copying your Bluesky tags.