AI Mastodon Post Generator — Free Tool

Turn a one-line brief into ready-to-post Mastodon copy, written to the platform’s length and tone.

Real examples

Actual output from the assistant for Mastodon.

Mastodon norms matter more than reach: describe your images, use content warnings, and don't write like an ad.

Brief
releasing a new version of our CLI
v2.1 of the CLI is out. Biggest change: it no longer needs a config file for the common case — flags cover everything, and `--help` finally lists them all. Changelog in the reply.

Take this straight into a post

Add your text above, then bring it across.

Open in BulkPublish

Input

What is the post about?

Free to use

3 generations a day with no account, then 50 free generations a month

Features

  • Written for Mastodon, not copy-pasted between platforms
  • Several variants per brief so you choose rather than edit
  • Improve, shorten, expand, or retone an existing draft
  • Generate in the composer and schedule it in the same place

How it works

  1. Write a short brief — one line describing what you want. Specific beats broad: "winter blend, 20% off this week" gives a better result than "coffee promo".
  2. Press Generate. It runs right here — no account, no card, three times a day.
  3. Need more? A free account raises the limit to 50 AI generations a month.
  4. It also moves generation into the composer, next to your channels and schedule — several variants per platform, then edit and schedule without leaving the page.

What you get free

Three generations a day on this page, with no account at all. Signing up is free and raises it: the Free plan includes 50 AI generations a month, Pro includes 300 and Business includes 1000 — and you can buy credits on any plan if you run out.

The reason to sign in isn't the limit, it's the workflow: generations happen where your drafts, channels, and schedule already are, so you go from brief to scheduled post without copying text between tabs. This page gives you one variant; the composer gives you several, plus improve, shorten, expand, and tone.

Getting better output

  • Put one concrete detail in the brief — a number, a name, a place. Generic briefs produce generic output.
  • Use the per-platform page, not the general one. The platform changes the length, the register, and in some cases the rules the result has to obey.
  • Run it more than once. Each run is independent, and the second attempt on a sharper brief usually beats editing the first.
  • Treat it as a first draft. The fastest workflow is generate, then change one line — not generate and paste.

Frequently asked questions

What makes a good Mastodon post?

Mastodon norms matter more than reach: describe your images, use content warnings, and don't write like an ad. Mastodon posts allow 500 characters by default; bios allow 500.

Do I need an account?

No — you get 3 free generations a day right on this page, no signup. A free account lifts the limit: the Free plan includes 50 AI generations a month, Pro includes 300 and Business includes 1000, or you can buy credits on any plan.

Schedule Mastodon posts

Done writing? Schedule and bulk publish it to Mastodon with BulkPublish.

Schedule Mastodon posts