Character card creator. Your next story starts here.

A free character card creator for your next story. Write their personality and opening scene, preview as you go, then take a V2 or V3 JSON card with you.

Nao · Detective · AI character

Write your character

Only a name is required. Every other field is yours to shape.

No account. Your text is processed in this browser, without an AI service or upload. There is no auto-save: download before refreshing, closing or leaving this page.

Character name Required

One-line introduction

Description

Who are they? Include their adult age, background, appearance and what matters to them.

Personality

Give them motives, values, habits and boundaries. Contradictions make a character feel human.

Scenario

Set the place, the relationship and something that needs to happen next.

First message

Start the scene in their voice. Leave the other person's choices open.

Preview your opening scene

Example dialogue & creator details

Example dialogue

Show how they speak. Use {{char}} for the character and {{user}} for the other person.

Creator notes

Notes for people using the card, such as the intended tone or content boundaries.

Creator credit

Character version

Keep your character

Download an open character card. This starter creates text-only JSON, without a portrait or lorebook.

For a fuller starting point, add description, personality, scenario, first message. You can export with these fields empty.

Card format

V2 works with apps that support Character Card V2, including SillyTavern. Choose V3 when your destination supports it. The one-line introduction uses a Koimo extension; other apps may not display it.

A character, with room to surprise you

Start with what they want, what they value and the choice that makes today different. A few specific details usually give you more to play with than a long list of adjectives.

What is a character card?

A character card is a portable definition: a name, background, personality, scenario, greeting and optional example dialogue. Character Card V2 and V3 are open formats supported by compatible roleplay apps. A card does not contain a chat history or an AI model.

Can I use this with SillyTavern or Koimo?

Download V2 JSON for a destination that accepts Character Card V2, or V3 JSON for an app with V3 support. You can preview and convert your downloaded card in Koimo. Support for optional extensions varies by app.

Is my draft saved?

Your text stays in this page’s browser memory while you work. The creator does not upload it, call an AI service or auto-save it in browser storage. Download your card before leaving; refreshing or closing the page clears the draft.

Koimo is for adults 18+. Create adult characters and follow the content policy. For a deeper walkthrough, read how to create an AI character.