What is a character card?

A character card is a portable file that stores an AI character's personality, description, dialogue examples, and scenario data. Most common formats include V2 PNG (SillyTavern), CharacterAI JSON, and Voxta JSON.

Is my data secure when using this converter?

Yes. Our converter uses Zero-Server Architecture — all processing happens locally in your browser. Your character files never leave your device. No data is uploaded, stored, or logged.

Which platforms are supported?

We support 10+ platforms including SillyTavern, CharacterAI, Voxta, KoboldAI, PygmalionUI, Text Generation WebUI, TavernAI, and more. Our universal converter handles all major formats.

What is the V3 character card format?

The V3 format is the next-generation character card specification. It adds support for multimodal data including voice, images, and 3D meshes. According to industry experts, V3 will become the standard by 2026.

How do I create a character card from scratch?

Start by defining your character's name, description, personality traits, and scenario. Use our free converter tools to format the data for your preferred platform. We also recommend using bullet points for personality traits to improve token efficiency.

Free & Open Tool

Convert AI Character Cards Instantly

Move your characters between SillyTavern, CharacterAI, KoboldAI, Voxta, and 8 more platforms — privately, in your browser, zero uploads.

🔒 100% Private ⚡ Instant Conversion 🖥️ No Server Upload

⚙️ Explore All Tools ✨ Universal Batch Mode 🧬 Create a New Card

48+ Converters

10 Platforms

0 Data Uploaded

Free Always

Simple Process

Three Steps. Done.

No accounts, no installs, no waiting. Just paste, pick, and download.

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1. Paste Your Card

Drop in a PNG card file, paste JSON, or upload a YAML — we handle all formats.

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2. Choose Target

Pick the platform you want to convert to. All fields are mapped automatically.

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3. Download

Get your converted card as a PNG, JSON, or YAML — ready to import instantly.

Supported Platforms

🍺 SillyTavern 🤖 CharacterAI ⚔️ KoboldAI 🎙️ Voxta 🏡 Backyard AI 🦜 Pygmalion 🌐 Agnai 🖥️ TextGenWebUI

Sister Tool

Need to create a character first?

Character Card Converter stays free for private browser-based format conversion. When you want to build a new Character Card V2 from scratch, use Character Card Generator to create, edit, save, and export a polished roleplay character.

Create with Generator Convert an existing card

Latest Updates

Platform News & Changes

February 15, 2026

Total Conversion Matrix Expansion

We deployed 48 hyper-specific conversion tools for Agnai, Backyard AI (Faraday), Voxta, and TextGenWebUI. Each tool includes deep technical documentation and zero-server processing guarantees.

January 2026

Universal Batch Converter Launched

Convert any character card to multiple formats simultaneously — JSON, YAML, PNG, and Voxta in a single operation. The community's most-requested feature is here.

Conversion Hub

Character Card Conversion Hub

Pick your source platform, pick your destination. Every conversion runs locally — your card never leaves your device.

Universal & Batch Tools Featured

⚡ Universal Batch Converter

Our flagship tool. Convert any card into multiple formats simultaneously — JSON, YAML, PNG, Voxta.

📸 JSON → TavernAI PNG

Embed raw JSON character data directly into a PNG card file.

📄 YAML → SillyTavern

Convert YAML-formatted characters to SillyTavern V2 standard.

🔄 CAI Definition Extractor

Specialized tool for moving CAI legacy behavior definitions across platforms.

🧬 From Character Card V3 (CharX)

To SillyTavern

Unpack a V3 .charx into a SillyTavern-ready V2 PNG card.

To CharacterAI

Unpack a V3 .charx into a CharacterAI definition.

To Voxta

Unpack a V3 .charx into a Voxta companion JSON.

To KoboldAI

Unpack a V3 .charx into a KoboldAI / KoboldCpp card.

To Backyard AI

Unpack a V3 .charx into a Backyard AI (formerly Faraday) JSON.

To Agnai

Unpack a V3 .charx into an Agnai.chat character JSON.

To TextGenWebUI

Unpack a V3 .charx into a TextGenWebUI (Oobabooga) character.

To Pygmalion

Unpack a V3 .charx into a legacy Pygmalion JSON.

Any → V3 (CharX)

Upgrade any card to the V3 schema.

🧬 From RisuAI (CharX)

To SillyTavern

Unpack a RisuAI .charx into a SillyTavern-ready V2 PNG card.

To CharacterAI

Unpack a RisuAI .charx into a CharacterAI definition.

To Voxta

Unpack a RisuAI .charx into a Voxta companion JSON.

To KoboldAI

Unpack a RisuAI .charx into a KoboldAI / KoboldCpp card.

To Backyard AI

Unpack a RisuAI .charx into a Backyard AI (formerly Faraday) JSON.

To Agnai

Unpack a RisuAI .charx into an Agnai.chat character JSON.

To TextGenWebUI

Unpack a RisuAI .charx into a TextGenWebUI (Oobabooga) character.

To Pygmalion

Unpack a RisuAI .charx into a legacy Pygmalion JSON.

🍺 From TavernAI / SillyTavern

To Voxta

Voice-enabled companion integration.

To Backyard AI

Formerly Faraday. Local LLM optimization.

To Agnai

Web-based local frontend migration.

To TextGenWebUI

Oobabooga context optimization.

To CharacterAI

Format for advanced definitions.

To KoboldAI

Legacy JSON and Lite frontend support.

🤖 From CharacterAI (CAI)

To SillyTavern

Move definitions to V2 PNG cards.

To Voxta

Port CAI characters to voice personas.

To Backyard AI

Export CAI bots to local Faraday saves.

To Agnai

Migrate CAI personas to Agnai.chat.

To TextGenWebUI

Convert CAI data for local inference.

To Pygmalion

Classic prefix-based JSON standard.

To KoboldAI

Optimize for KoboldCPP and Lite.

🎙️ From Voxta

To TavernAI / SillyTavern

Embed Voxta profiles into PNG cards.

To Backyard AI

Move voice companions to local LLMs.

To Agnai

Synchronize Voxta data with Agnai.

To TextGenWebUI

Export Voxta metadata for Oobabooga.

To CharacterAI

Upload Voxta definitions to CAI.

To KoboldAI

Convert Voxta JSON to Kobold saves.

To Pygmalion

Down-convert to legacy Pygmalion.

⚔️ From KoboldAI

To SillyTavern

Modernize legacy text-based saves.

To Voxta

Map legacy JSON to voice companion app.

To Backyard AI

Migrate Kobold JSON to Backyard AI.

To Agnai

Convert Kobold saves for Agnai.chat.

To TextGenWebUI

Optimize for Oobabooga context.

To CharacterAI

Port Kobold personas to CAI fields.

To Pygmalion

Convert to classic Pygmalion JSON.

🦜 From Pygmalion

To SillyTavern

Upgrade to current V2 standards.

To Voxta

Add voice to your Pygmalion bots.

To Backyard AI

Move Pygmalion JSON to local Faraday.

To Agnai

Export Pygmalion data to Agnai.chat.

To TextGenWebUI

Clean metadata for Oobabooga.

To KoboldAI

Convert to KoboldCPP-ready saves.

To CharacterAI

Migrate classic JSON to CAI advanced.

🔮 Any Input (JSON / YAML / PNG)

Any → Voxta

Universal entry for voice integration.

Any → TavernAI PNG

Create V2 cards from any raw data.

Any → Backyard AI

Universal Faraday/Backyard import.

Any → Agnai

Generic entry for Agnai character cards.

Any → TextGenWebUI

Universal context file generator.

Any → CharacterAI

Universal CAI definition formatter.

Any → KoboldAI

Universal Kobold JSON generator.

Any → Pygmalion

Universal legacy JSON formatter.

Knowledge Base

Technical Intelligence & Community News

Specifications

The Future of V3 Character Cards

A deep dive into upcoming multimodal standards and dynamic state persistence.

Read Technical Analysis → Community Trends

Why Creators Are Leaving Cloud AI

Analyzing the mass migration from platforms like CharacterAI to local self-hosting.

Under the Hood: PNG Binary Chunks

How character metadata is stored and parsed at the bitwise level.

View Guide →

Explore All Technical Guides

Common Questions

Frequently Asked Questions

🔒 Is this safe to use?

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 with character data embedded inside the file's metadata chunks. The image looks normal — the data hides inside.

❓ Why is my card empty?

Some platforms strip metadata on export. Try our Universal Batch tool with "Extract JSON" mode to verify the card contains data.

View Full Technical FAQ

Guides & Specs

Finish the conversion, then learn how the format actually works.

Repair docs, specification deep dives, and privacy guides for when you need more than a quick export.

Browse All Guides