mastodonaibio generator

AI Mastodon Bio Generator — Free Tool

Write a Mastodon bio that fits the character limit and actually says something. Several options per brief.

Real examples

Actual output from the assistant for Mastodon.

Mastodon bios can be long enough to actually explain yourself, and the culture rewards specificity over polish.

Brief
sysadmin, self-hosting, runs a small instance
Sysadmin by trade, self-hoster by temperament. I run a small instance for friends, break it regularly, and write up the fixes. Mostly posts about: Linux, backups nobody tests, and why your uptime monitoring is lying to you.

Features

  • Fits Mastodon’s bio limit exactly
  • Multiple registers per brief
  • Works for personal and brand profiles
  • Pairs with the Mastodon character counter to check the fit

Input

Who is the bio for?

Free to use

3 generations a day, no account — then 50 free generations/month

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 bio?

Mastodon bios can be long enough to actually explain yourself, and the culture rewards specificity over polish. Mastodon bios allow 500 characters; display names allow 30.

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.