AI Mastodon Comment Generator — Free Tool

Draft Mastodon replies that sound like a person — for FAQs, objections, and polite disagreement.

Real examples

Actual output from the assistant for Mastodon.

Mastodon replies are read by people who dislike marketing voice — be direct and cite things.

Brief
someone asking whether your tool is open source
Partly — the scheduling engine is MIT, the hosted app isn't. Repo link in my bio if you want to self-host the engine on its own.

Take this straight into a post

Add your text above, then bring it across.

Open in BulkPublish

Input

What are you replying to?

Free to use

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

Features

  • Drafts Mastodon replies in the tone you pick
  • Keeps replies short enough to be read
  • Handles FAQs, complaints, and disagreement
  • Nothing posts automatically — you edit and send

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 comment?

Mastodon replies are read by people who dislike marketing voice — be direct and cite things. Mastodon posts allow 500 characters.

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