Convert between JSON and TOON (Token-Oriented Object Notation) formats
TOON (Token-Oriented Object Notation) is a compact, human-readable serialization format designed to reduce token usage by 30-60% compared to JSON when working with Large Language Models (LLMs) and AI applications. It uses tabular arrays and indentation-based structure for maximum efficiency.
Simply paste your JSON in the input field, select "JSON → TOON", and click Convert. The tool will instantly convert your JSON to the more token-efficient TOON format. You can also validate your JSON before converting.
Yes! Click the "Validate" button to check if your input is valid JSON or TOON format without converting it. This is useful for debugging and ensuring your data is correctly formatted.
TOON reduces token usage by 30-60% compared to JSON, which saves costs and allows you to send more data to LLMs within token limits. It's especially useful for API responses, structured data, and tabular data where you need to maximize information density.
Yes, TOON Converter is completely free to use. No registration required, no API keys needed, and no usage limits. You can use it as much as you need for both personal and commercial projects.
Yes! The tool has a RESTful API that you can use programmatically. Visit /api/docs for documentation, or check /api/ai-tools for AI-friendly tool descriptions.