# Character backstory generator for your OCs

> Headcanon Generator AI is a character backstory generator for original characters. Describe your OC in up to 200 words, such as name, age, role, setting and a trait or two, and the OC backstory type writes where they come from, the events that shaped them, what they want and fear, and a secret. Pick a short list, detailed paragraphs or a story snippet of a key moment. A run costs 1 credit with Claude Haiku 5.5 or 8 credits with Claude Sonnet 5.

Give your original character a name, a role and a world, and get a backstory with an origin, turning points, wants, fears and a secret that explain who they are now.

## At a glance

- **Covers:** Origin, family, turning points, wants, fears, a secret, habits
- **Price per run:** 1 credit with Claude Haiku 5.5, 8 credits with Claude Sonnet 5
- **Account:** Free to sign up (no credits included); runs use purchased credits
- **Brief:** From one character name up to 200 words
- **Lengths:** Short list, detailed, or a 350 to 600-word story snippet

- Fits the details you give
- Hooks you can use
- Free backstory checklist

[Generate a backstory](https://headcanongeneratorai.app/create)

## A backstory that explains your character

- **Uses what you already know**: The instructions ask the model to build around every detail in your brief instead of replacing it.
- **Turning points, not trivia**: The events that shaped the character, with concrete names and places you can reuse.
- **Wants, fears and a secret**: The parts that drive a story: what they are after, what stops them and what they hide.
- **Past that shows today**: Habits and reactions in the present that come from their history, so readers can see it.

## How to generate a character backstory

1. **Describe your OC**: Name, age, role, setting and one or two traits are enough to start.
2. **Choose a length**: A short list for quick hooks, detailed for a full history, a story snippet for one key moment.
3. **Keep what fits**: Copy the parts you like into your character sheet and run again for alternatives.

## What makes a character backstory useful

A useful backstory is not a biography. It explains the character's present: why they want what they want, why they flinch at certain things, and what could break or change them. A few strong turning points beat a complete timeline.


## A free backstory checklist

Answer these yourself, or put the ones you already know into the brief:

- Where did they grow up, and who raised them?
- What happened that they still think about?
- What do they want, and what do they need instead?
- What are they afraid people will find out?
- Which habit today comes from their past?
- Who from their past could walk back into the story?

## Backstories for games, comics and role-play

The same type works for a tabletop or video game hero, a comic character or a role-play persona. For a whole party and its NPCs, the AI RPG generator page starts with a found-family setup. Keep characters fictional: the generator does not write about real, living people.


## Simple pricing, by the run

- Starter: $7.99 / month, 1,000 credits
- Pro: $19.99 / month, 3,000 credits
- Studio: $49.99 / month, 8,000 credits
- Mini: $4.99, 500 credits
- Plus: $14.99, 2,000 credits
- Max: $34.99, 5,000 credits

## Character backstory generator FAQ

### How much detail should my brief have?

A name, an age, a role and a setting are enough. Add a trait, a relationship or an event you already decided on, and the backstory will build around it.

### Can it write a backstory for an existing character?

Yes, as a headcanon: the model fills gaps that the source leaves open and is asked not to contradict known canon. Use the Character type for personality and the OC backstory type for history.

### Is the character backstory generator free?

The checklist on this page is free, and so is signing up (no credits included). Generating a backstory uses purchased credits: 1 credit with Claude Haiku 5.5 or 8 credits with Claude Sonnet 5.

## Give your OC a past worth writing about

Describe them in a few lines and choose a length. Credit packs start at $4.99.

_Last updated 2026-10-29_