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TOON Token Savings Calculator
Calculate how much you can save on LLM API costs using TOON format
1K1M
Token Savings
117
JSON Tokens
→
55% less
53
TOON Tokens
Monthly Cost Comparison (GPT-4o)
JSON Format$2.92/mo
TOON Format$1.33/mo
You Save$1.60/mo
Annual Savings
$19
per year with TOON format
How TOON Reduces Token Usage
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Tabular Arrays (40-60% savings)
Arrays of objects with same keys use a header row instead of repeating keys for every item.
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Minimal Syntax (20-30% savings)
No quotes around keys, no colons between key-value pairs, minimal punctuation.
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Compact Values
Inline arrays and objects when they fit on one line, reducing whitespace tokens.
Frequently Asked Questions
Is TOON compatible with all LLMs?
Yes! GPT-4, Claude, Gemini, and other modern LLMs can understand TOON format when given a brief explanation in the system prompt.
What data types work best with TOON?
Arrays of objects with consistent keys see the biggest savings (40-60%). Simple objects save 20-30%. Deeply nested structures with varying keys save less.
Can I convert TOON back to JSON?
Yes! TOON is a lossless format. Our converter supports bidirectional conversion with no data loss.