Convert CharacterAI to Pygmalion | Legacy AI Schema Migration Tool

CharacterAI to Pygmalion JSON Conversion

Bridge the gap between cloud and classic. The name, description, personality, scenario, first message and example dialogue are mapped one-to-one from the CharacterAI data to Pygmalion.

Zero-Server Processing Philosophy

Privacy Shield: Your character definitions never leave your device. All extraction and schema translation logic is executed client-side via your browser's RAM, ensuring your creative digital digital personas remain private.

1. Upload or Paste CharacterAI Data

Pygmalion JSON Result

Technical Documentation: Mapping Cloud Personas to Foundational Standards

The migration from **CharacterAI (c.ai)** to **Pygmalion** JSON is a process of porting modern cloud-based character logic into the foundational "Prefix-Based" schema that helped define the early AI roleplay community. While CharacterAI uses a monolithic definition structure, Pygmalion relies on explicit, flattened keys that provide a clear roadmap for inference models.

1. Deconstructing the Definition Monolith

CharacterAI primarily stores character behavior in its Definition (Advanced) field. This field often contains a mixture of W-style descriptions, roleplay cues, and dialogue examples.

2. Key Mapping and Prefix Standardization

The Pygmalion schema is defined by its foundational keys: char_name, char_persona, char_greeting, and world_scenario.

3. Dialogue and Greeting Fields

We extract the "Greeting" from CharacterAI and map it directly to the Pygmalion char_greeting field. The converter maps fields only; apart from the small changes listed below, it does not edit, clean up or reformat the text inside them. This normalization is critical because different model frontends interpret dialogue cues differently. The converter maps fields only; apart from the small changes listed below, it does not edit, clean up or reformat the text inside them.

4. Privacy and Data Sovereignty

Character development represents a significant creative investment. We honor this by performing all extractions and mapping locally. By running the conversion logic entirely in your browser's RAM, we ensure that your proprietary character definitions are never transmitted to our server or any third party. This provides a secure, private bridge for users who want to move their creations to a more self-sovereign, local-first roleplay ecosystem.

5. Identity and Legacy Compatibility

By outputting a standardized Pygmalion JSON, we ensure that your CharacterAI personas are compatible with the broadest possible range of AI tools. This conversion process isn't just about moving data; it's about future-proofing your digital characters and ensuring they remain accessible, editable, and compatible with the broader community standards, regardless of the evolving landscape of cloud-based AI services.