Convert AI Character Cards Instantly
Free, instant, and private conversion for AI character platforms and visual novels. No data is ever uploaded to a server.
Try Converter NowPlatform Updates & AI News
Major Engine Hardening Deployment
We have successfully deployed a major update to our conversion engine. This update includes native browser decompression support, allowing for 100% compatibility with compressed TavernAI V2 cards. We have also expanded our metadata key scanning to support the latest platforms in the AI companion space.
Site Launch & Universal Mode
Character Card Converter is officially live! Our flagship Universal Mode allows creators to batch-convert characters into multiple formats simultaneously, streamlining the workflow for developers and power-users.
AI Character Intelligence Hub
The Evolution of AI Character Cards
In the early days of large language models, character "definitions" were often just long text prompts pasted into a chat window. As the community grew, tools like TavernAI and SillyTavern revolutionized the space by introducing the Character Card concept. These are not just images; they are data-carrying containers. By embedding JSON metadata directly into the auxiliary chunks of a PNG file, creators enabled a seamless way to share complex personalities, backstories, and even physical descriptions in a single, portable asset.
Understanding the V2 PNG Specification
The transition from V1 to V2 specifications was a major milestone for the AI character community. While V1 cards held basic fields like name and description, the V2 spec added support for advanced features such as scenario logic and example dialogues. Our converter is built to handle these nuances, ensuring that your character’s "soul" remains intact across platforms. We leverage the Web Decompression API to handle compressed zTXt chunks without server-side processing.
The Importance of Local, Browser-Based Conversion
Privacy is the most significant concern in the modern AI era. Character Card Converter solves this by using a "Zero-Server" architecture. The entire conversion process happens inside your browser's memory. Your files are never uploaded, never cached on a server, and never seen by anyone but you. This ensures absolute data sovereignty for your digital creations.
Why Use Character Card Converter?
Multiple Formats
Comprehensive support for TavernAI, SillyTavern, CharacterAI, TextGenerationWebUI, and raw JSON/YAML standards.
Instant & Secure
All conversions happen in your browser using local JavaScript. Your character data never leaves your device.
100% Free
No subscriptions, no hidden limits. Convert as many cards as you need, whenever you need them.
How It Works
1. Upload or Paste
Drag and drop your PNG character card or paste the JSON/YAML code into the secure input area.
2. Select Format
Choose your target platform (e.g., TavernAI V2, Voxta JSON, or Pygmalion) for optimized output.
3. Export Results
Receive your converted character file instantly for local use. No wait times or server generation.
Character Card Conversion Hub
Universal & Batch Tools
From CharacterAI (CAI)
CharacterAI to SillyTavern
Move your CAI definitions into standard V2 PNG cards for SillyTavern.
CharacterAI to TavernAI
Export your CAI personas directly into TavernAI-compatible metadata.
CharacterAI to Voxta
Port CAI characters to the voice-enabled Voxta companion format.
CAI to JSON / JB
Convert proprietary CAI definitions into clean, portable JSON files.
CAI to Pygmalion
Move CAI bots to the classic prefix-based Pygmalion JSON standard.
CAI to KoboldAI
Optimize CAI characters for use with KoboldCPP and Lite frontends.
To SillyTavern / TavernAI Cards
Any to TavernAI PNG
Embed any character data into a compliant V2 PNG card instantly.
JSON to TavernAI PNG
Convert raw character JSON metadata into visual PNG character cards.
YAML to SillyTavern
Transform readable YAML personas into metadata-rich SillyTavern cards.
KoboldAI to SillyTavern
Migrate text-based Kobold character saves to modern V2 PNG cards.
Pygmalion to SillyTavern
Upgrade legacy Pygmalion JSON characters to current TavernAI standards.
Specialized Formats
Any to Voxta
Standard tool for adapting any card format for Voxta voice integration.
SillyTavern to Voxta
Specialized mapping for moving local Tavern cards into the Voxta ecosystem.
Any to CharacterAI
Format your local cards for the CharacterAI advanced definition fields.
Any to Pygmalion
Convert modern cards to the classic Pygmalion JSON standard.
Any to KoboldAI
Prepare your character metadata for KoboldCPP and Lite frontends.
Frequently Asked Questions
Is this safe?
Yes. All conversions happen locally in your browser using JavaScript. Your character files are never uploaded to any server.
What is a V2 Character Card?
V2 cards are PNG images that hide character data (name, personality, etc.) inside the file's metadata. This allows you to share a character just by sharing an image.
Why is my card empty?
Some platforms strip metadata from images. If your card doesn't work, try using the "Extract JSON" tool to see if any data is left inside.
Can I convert CharacterAI chats?
No, this tool converts Character Definitions (the card itself), not chat history logs.
What formats are supported?
We support TavernAI (V1/V2), SillyTavern, CharacterAI, Pygmalion, Voxta, KoboldAI, and raw JSON/YAML.
How do I use these in Voxta?
Use the "Any to Voxta" tool to generate a JSON file, then import that file directly into your Voxta profiles folder.
Stay Updated
Subscribe to our newsletter to receive the latest updates on AI character formats and digital persona technology.