Mastodon Caption Generator
Free forever, no sign-up, no watermark
Generate engaging Mastodon toots with AI. Create compelling content for the Fediverse community.
Tips for Mastodon Captions
- Mastodon toots have a 500 character limit (varies by instance).
- Content warnings (CW) are a Fediverse best practice.
- Hashtags are essential for discoverability.
- Be genuine, the Fediverse values authenticity.
- Alt-text for images is strongly encouraged.
Or skip the copy-paste entirely
Compose once. Ship to 30 platforms from one editor.
FoPost handles line breaks, character limits, hashtags, image crops, and per- platform overrides automatically. Every plan starts with a 7-day free trial.