AI Social Media Bio Generator

An AI social media bio generator writes the short description on a profile page, the text people read before they decide to follow. You pick the platform and a vibe, describe yourself or your brand, and a language model returns eight numbered bios. Each is kept within that platform's limit, uses emojis sparingly, and some end with a call to action.

It covers six platforms: Instagram, TikTok, X (Twitter), LinkedIn, YouTube and Threads. The limits it writes to are about 150 characters for Instagram, TikTok and Threads, 160 for X, and longer for YouTube and LinkedIn. The five vibes are Professional, Fun, Minimal, Creative and Bold. A bio describes the account as a whole, which is a different job from a caption on one post. On LinkedIn the equivalent spaces are the headline and About section, and those have their own generators.

The model runs on the Toolz server. Your description is sent over HTTPS, the server builds the prompt and runs Gemma 3 1B, a small open model from Google, with Ollama, and the bios stream back within a few seconds. What you write about yourself is used to write the reply and then discarded: it is not stored or logged, not used to train any model, and not sent to any third-party AI company.

The limits: a 1B model miscounts characters and can run over, so check the length in the app. Platforms also change their limits from time to time, and the model has no web access to know. It can also add a detail you did not give, like a city or a job title, so read each bio before you use it.

It is free with no signup, within about 20 runs per 10 minutes. The alternatives are writing your own, copying the shape of bios you like, or a general AI chatbot. This gives you eight options to pick from and trim, and keeps none of what you typed.