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toon-format/toon

toon

🎒 Token-Oriented Object Notation (TOON) – JSON for LLM prompts at half the tokens. Spec, benchmarks & TypeScript implementation.

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toon-format

toon-format • individual

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23,632

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1,055

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Activity Score

0/100

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Created

Oct 22, 2025

Project creation date

README Summary

TOON (Token-Oriented Object Notation) is a more token-efficient alternative to JSON specifically designed for LLM prompts, reducing token usage by approximately 50%. The repository includes the specification, performance benchmarks, and a complete TypeScript implementation with parsing and serialization capabilities.

AI Dev Skills

Unmapped

Prompt EngineeringToken OptimizationLanguage Model EfficiencyData SerializationLLM Cost Optimization

Taxonomy

AI Trends

Prompt Engineering LLM Cost Optimization Efficient AI Systems

Deployment Context

Cloud API Self-hosted Browser/WASM Serverless

Industries

Developer Tools

Modalities

Text

Skill Areas

Prompt Engineering Token Optimization Language Model Efficiency Data Serialization LLM Cost Optimization

Use Cases

LLM Prompt Optimization API Cost Reduction Structured Data Serialization for AI Token-Efficient Data Exchange

Recent Activity

Updated 5 months ago

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Quality

prototype

Quality: medium
Maturity: prototype

PM Skills

Developer Platform

Languages

TypeScript100.0%

Timeline

Project created: Oct 22, 2025
Forked: Nov 4, 2025
Your last push: 5 months ago
Upstream last push: 13 days ago
Tracked since: Nov 4, 2025

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