AI character cards define the personality, background, and behavior of your AI character. HammerAI makes it really easy to bring them into your app, even if you originally downloaded or created them somewhere else.

Whether you got a character card from a community like Chub.ai, Reddit, TavernAI, or SillyTavern, you can import it into HammerAI and start using it right away with full offline access and full control over editing.

Here’s a simple guide you can follow.

What You Need Before You Start

You only need two things:

• A character card file. The most common formats are JSON, PNG, or TXT
• HammerAI installed on your computer

HammerAI works best with JSON cards, but PNG cards with embedded character data usually work too. TXT cards may need some small adjustments before importing, depending on how they were exported.

Step-by-Step: How to Import a Character Card

1. Open HammerAI
   Launch the app. You will be taken to the character selection page.
2. Click “Import Character”
   There’s a button in the top right of the character list that lets you import new characters.
3. Choose the card file
   Pick the JSON or PNG file from wherever you saved it. HammerAI will automatically read the character name, personality, description, example dialogue, and avatar if the card has one.
4. Save and start chatting
   Once you save the card, it will appear in your character list. You can start chatting immediately or add them to Story Mode.

Editing the Card After Import

Once the character is in your list, you can customize it however you want. For example:

• Change the character’s description or personality
• Upload a new avatar
• Add Lorebook entries to give them deeper memory and world knowledge
• Export the updated card and share it with other people

It only takes a few clicks to change how a character behaves.

Where To Get More Character Cards

If you don’t have any cards yet, there are many places to find them:

• Chub.ai has a huge collection of AI characters made by the community
• Discord servers for HammerAI, TavernAI, and SillyTavern often share downloadable cards
• Some GitHub repositories offer open-source character packs
• Or you can create your own directly inside HammerAI

Why Import Cards at All?

Importing a card saves time. You don’t need to write personality details from scratch and you can load fully prebuilt characters instantly. It’s also a good way to learn how other creators design their cards, so you can improve your own.

Pro Tip

After importing a card, pair it with HammerAI’s Lorebook. The Lorebook gives characters long-term memory, lets you define relationships, store world facts, and make interactions feel more realistic.

Final Thoughts

Importing AI character cards in HammerAI only takes a few seconds, but it opens up a huge world of possibilities. Whether you’re roleplaying, storytelling, worldbuilding, or just chatting with interesting AI personalities, character cards give you a head start — and HammerAI gives you the privacy, customization, and offline control that other apps don’t.

If you already have cards, drop them in and start chatting. If not, download the desktop app and explore the community — there are thousands waiting.