TOON Format Guides

Master Token-Oriented Object Notation - the efficient data format designed specifically for LLM prompts and AI applications.

Why TOON Format?

TOON (Token-Oriented Object Notation) is a revolutionary data format that reduces token usage by approximately 50% compared to JSON. This translates to significant cost savings when working with LLM APIs like GPT-4, Claude, or other language models.

By using explicit length markers and compact field definitions, TOON maintains readability while maximizing efficiency - perfect for AI applications, chatbot prompts, and data-intensive LLM workflows.

Articles & Tutorials

TOON BasicsStart Here

What is TOON Format? Complete Introduction & Basics

Learn what TOON format is, how it works, and why it uses 50% fewer tokens than JSON for LLM applications.

8 min readRead Article →

TOON vs JSON: Complete Comparison - Token Savings for LLMs

Detailed comparison showing how TOON achieves 50% token reduction. Includes cost analysis, performance metrics, and real-world examples.

10 min readRead Article →

TOON Format Specification - Syntax and Structure Guide

Complete technical specification for TOON format. Learn syntax rules, data types, array notation, and validation requirements.

12 min readRead Article →

TOON for LLM Prompts - Best Practices and Optimization

Master TOON format for AI applications. Best practices for GPT-4, Claude, RAG systems, chatbots, and prompt engineering.

11 min readRead Article →

Converting JSON to TOON - Step-by-Step Guide

Learn how to convert JSON to TOON format with detailed examples. Covers arrays, objects, nested data, and optimization techniques.

10 min readRead Article →

TOON Format Examples - Real-World Use Cases

Practical TOON examples from customer analytics, e-commerce, fraud detection, RAG systems, healthcare, sales, chatbots, and DevOps.

12 min readRead Article →

TOON Error Handling & Troubleshooting Guide

Fix common TOON validation errors. Complete guide to debugging syntax issues, field mismatches, and parsing problems.

11 min readRead Article →

TOON Minification Guide - Maximum Token Efficiency

Advanced minification techniques to achieve 60-70% token reduction. Optimize TOON for production LLM applications.

13 min readRead Article →

Quick Start with TOON

Ready to start using TOON format? Here's what you need to know:

  1. 1.Learn the basics with our What is TOON? guide
  2. 2.Try converting your JSON data using JSON to TOON
  3. 3.Validate your TOON syntax with the TOON Validator
  4. 4.Optimize further with the TOON Minifier