JSON ⇄ TOON Converter
Convert between JSON and TOON (Token-Oriented Object Notation) format. TOON reduces LLM token usage by 30-60% for structured data while maintaining readability.
Switch between JSON to TOON or TOON to JSON conversion
JSON Input
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Options
Tab delimiter often saves more tokens
TOON Output
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JSON TOKENS
0
TOON TOKENS
0
SAVED
0%
About TOON Format
TOON (Token-Oriented Object Notation) is a compact, human-readable format designed for LLM prompts. It achieves 30-60% token savings compared to JSON while maintaining structure and readability.
- Token Efficient: Removes redundant punctuation and declares array structures once
- LLM-Friendly: Explicit lengths and fields enable better validation
- Tabular Arrays: Perfect for uniform data structures like user lists or analytics
- Indentation-Based: YAML-like structure with minimal syntax