Convert JSON to TOON

Reduce your LLM token usage by 30% to 60% on average

Free plan available
No credit card

What is Convert JSON to TOON?

Convert JSON to TOON is a tool designed to compress JSON data into a more token-efficient format, reducing the size of prompts sent to language models. By converting standard JSON structures into a compact TOON format, users can significantly decrease token consumption when working with APIs like OpenAI, Anthropic, or other LLM providers. This is particularly useful for applications that process large amounts of structured data repeatedly, as smaller prompts mean lower API costs and faster response times. The tool works as a freemium service, making it accessible for testing and light usage whilst offering paid options for teams and high-volume users.

Key features

JSON to TOON conversion

Automatically transforms standard JSON into a compressed format

Token usage analytics

Shows estimated token savings before and after conversion

Batch processing

Convert multiple JSON files or objects at once

Reverse conversion

Convert TOON format back to standard JSON when needed

API access

Integrate conversion directly into your applications via REST API

Pros & cons

Advantages

Reduces API costs significantly by lowering token usage on each request
Maintains data integrity whilst compressing structure and formatting
Free tier available for testing without upfront investment
Works with any JSON structure without requiring manual configuration

Limitations

Requires an additional conversion step in your workflow, adding some complexity
Effectiveness depends on JSON structure; sparse data may see lower compression rates
Both sender and receiver must support TOON format for end-to-end implementation