About T3Toon

What is T3Toon?

T3Toon (Token-Optimized Object Notation) is a compact, human-readable, and token-efficient data format designed specifically for AI and LLM integrations in TYPO3 CMS.

It transforms large JSON or PHP arrays into a format that:

Reduces token usage by up to 70% compared to JSON
Maintains human readability (YAML-like structure)
Preserves complete data structure and key order
Supports bidirectional conversion (JSON ⇄ TOON)

Use Cases

T3Toon is perfect for:

AI Prompt Engineering: Compress structured data for LLMs (ChatGPT, Gemini, Claude, Mistral)
Token Optimization: Reduce token usage and API costs
Data Preprocessing: Streamline complex structured inputs
Logging & Debugging: Store compact, readable structured logs
Database Storage: Reduce JSON storage size while preserving structure
Developer Tools: Perfect for previews and compact dashboards

Why T3Toon?

When working with AI APIs, every token counts. Traditional JSON format includes:

Redundant quotes around keys and string values
Verbose syntax (braces, brackets, commas)
Repeated structural markers

T3Toon eliminates this overhead while maintaining:

Complete data fidelity
Human readability
Easy parsing and conversion
Support for complex nested structures

Example Comparison

JSON Format (7.7 KB, 1,930 tokens):

{
  "user": "ABC",
  "message": "Hello, how are you?",
  "tasks": [
    {"id": 1, "done": false},
    {"id": 2, "done": true}
  ]
}

TOON Format (2.5 KB, 640 tokens):

user: ABC
message: Hello\, how are you?
tasks:
  items[2]{done,id}:
    false,1
    true,2

Result: 67% size reduction and 66.8% fewer tokens while retaining complete data accuracy.