JSONTOTOON
100% Client-Side Processing — Your data never leaves your device

Convert JSON to TOON and Save 30-60% Tokens

Transform JSON to Token-Oriented Object Notation (TOON) format instantly. Reduce LLM token usage, cut API costs for GPT-4, Claude, and Gemini — no signup required.

JSON Input

0 tokens

TOON Output

0 tokens

Why Convert JSON to TOON?

Save money on LLM API costs, optimize token usage, and make your AI applications more efficient

30-60% Token Reduction

TOON format eliminates redundant JSON keys, brackets, and punctuation, cutting token usage by 30-60% on average.

Lower LLM API Costs

Save significantly on GPT-4, Claude, Gemini, and other LLM API costs. With 46% fewer tokens on average, you'll see immediate savings.

Completely Free Forever

No account required, no credit card, no limits. Convert unlimited JSON to TOON anytime, anywhere — 100% free.

Your Data Never Leaves Your Device

All conversion happens locally in your browser. Zero data transmission, zero servers, zero tracking. Complete privacy guaranteed.

Lossless Conversion

TOON preserves all your data perfectly. Convert back to JSON anytime with zero data loss.

Instant Conversion

Convert even large JSON files in milliseconds. Real-time processing with immediate results — no waiting.

What is TOON Format?

Token-Oriented Object Notation: A compact data format designed specifically for Large Language Models

Traditional JSON

Repetitive keys, excessive punctuation

{
  "users": [
    {"id": 1, "name": "Alice"},
    {"id": 2, "name": "Bob"},
    {"id": 3, "name": "Carol"}
  ]
}

~45 tokens

TOON Format

Compact, token-optimized

users[3]{id,name}:
  1,Alice
  2,Bob
  3,Carol

~28 tokens (38% savings)

How TOON Saves Tokens

1.

Eliminates repeated keys in arrays of objects

2.

Removes excessive brackets, braces, and quotes

3.

Uses tabular format for uniform data structures

How to Use JSON TO TOON

Converting JSON to TOON is simple and takes seconds

1

Paste Your JSON

Copy your JSON data and paste it into the input box. Works with any valid JSON format.

2

Click Convert

Press "Convert to TOON" and watch instant transformation with real-time token counts.

3

See Token Savings

View exact token reduction percentage and compare original vs TOON token counts.

4

Copy & Use in LLM Prompts

Click copy and use your TOON data in GPT-4, Claude, Gemini, or any LLM prompt.

Ready to Reduce Your LLM Costs by 60%?

Join thousands of developers optimizing their AI workflows with TOON format. Start converting now — it's completely free.

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