We built this converter to support
TOON Logo

Token-Oriented Object Notation

Compact, human-readable, schema-aware serialization for LLM prompts

Official GitHub:github.com/toon-format/toon•⭐ 13.8k stars
> CONVERSION_WORKFLOW
JSON
encode()
TOON
LLM
└─ Tokens:
≈30-60% less
TOKEN EFFICIENCY COMPARISON
TOON
73.9%
accuracy
JSON
69.7%
accuracy
└─ avg tokens visualization
BEST FOR
▸repeated structure
▸tables
▸varying fields
▸deep trees

Try the Converter

Paste your JSON and see the TOON format in real-time

OPTIONS.config
JSON Tokens
0
TOON Tokens
0
Saved
0%
INPUT.json
> JSON_INPUT_EDITOR
0 tokens • 0 chars
█ STANDBY
OUTPUT.toon
> TOON_OUTPUT_VIEWER
0 tokens • 0 chars
> AWAITING_INPUT
└─ Paste JSON in left editor
└─ Click CONVERT button
█ STANDBY