Mastodon Hashtag Tool

How to use the Mastodon Hashtag Tool

Clean a set of subject keywords into deduplicated hashtag suggestions, then decide whether hashtags or ordinary topic words suit the destination. The useful starting point for Mastodon is the reader: readers across federated servers with different local cultures and rules. Explain the subject clearly and choose the appropriate audience visibility before posting. Hashtags can help people find public posts across the network. Use readable CamelCase for multiword tags and choose a few relevant subjects rather than a wall of unrelated terms.

1. 1

   List the real subjects

   Enter a few specific topics, locations, or community terms separated by commas or new lines. Include only terms that accurately describe the content. For Mastodon, a practical example is an accessible content template: include descriptive alt text with every example image.

2. 2

   Generate a clean shortlist

   The tool removes unsupported punctuation and spaces and avoids repeated tags. Check the combined words for accidental ambiguity before copying them.

3. 3

   Select for the destination

   Keep only the suggestions that match how the platform uses tags. Some services use topic tags, channel mentions, community categories, or ordinary keywords instead of social hashtags.

4. 4

   Review in the actual post

   Add the selected terms to the draft, check the current composer rules, and read the post without them. The core message should still be complete and useful. Hashtags can help people find public posts across the network. Use readable CamelCase for multiword tags and choose a few relevant subjects rather than a wall of unrelated terms.