TOON (Token-Oriented Object Notation) is a data serialization format designed specifically for LLM prompts to be highly efficient. It dramatically reduces token usage by 30-60% compared to JSON while remaining structured and human-readable. By using a tabular format for arrays and minimal syntax for objects, TOON makes your data cheaper and faster to process with AI models.

What's the difference between TOON and JSON?

The key difference is token efficiency. JSON is verbose, with brackets, quotes, and commas that consume tokens. TOON is a more compact syntax designed for LLMs, representing arrays as tables with headers and using minimal punctuation. This efficiency directly translates to significant cost savings on your LLM API bills, especially for large or repeated datasets.

How much can I save with TOON?

You can typically expect to save 30-60% on LLM tokens compared to using JSON. For large datasets or frequent API calls, this translates directly into significant cost savings. Data with repeated structures, like API responses or database results, often sees savings at the higher end of this range (40-60%).

Is TOON compatible with all LLMs?

Yes. TOON is a simple text format that works flawlessly with all major large language models, including those from OpenAI (GPT-4), Anthropic (Claude), Google (Gemini), and Meta (LLaMA). Since any LLM can process plain text, they can all be instructed to understand and parse the TOON format with a simple instruction in your prompt.

Can I convert TOON back to JSON?

Absolutely. TOON is fully and losslessly reversible. Our converter tool supports bidirectional conversion, meaning you can convert TOON back to the exact original JSON structure without any data loss. This allows you to use TOON for efficiency and then convert back to JSON for compatibility with other tools.

What types of data work best with TOON?

TOON can represent any valid JSON data, but it delivers the highest token savings (40-60%) on uniform tabular data. This includes database query results, API responses with lists of objects, analytics data, or product catalogs. While TOON fully supports nested objects and arrays, the token reduction is most dramatic with flatter, more repetitive data structures.

Is my data safe when using this converter?

100% safe. All conversion from JSON to TOON (and back) happens locally in your browser. Your data is never sent to any server, never stored, and never seen by us. The converter even works offline once the page has loaded, guaranteeing your information remains private.

Yes, completely free. Both this TOON converter and the underlying TOON format specification are open and free to use without any limits, file size restrictions, or premium features. It's an open-source effort to make working with LLMs more efficient for everyone.

वापराच्या अटी

शेवटचे अपडेट: 12/27/2025

1. अटी स्वीकारणे

JSON ते TOON कनव्हर्टर ("सेवा") मध्ये प्रवेश करून आणि वापरून, तुम्ही या कराराच्या अटी आणि तरतुदींना बांधील असल्याचे स्वीकारता आणि सहमत आहात.

2. सेवेचे वर्णन

सेवा JSON आणि TOON फॉरमॅटमध्ये डेटा रूपांतरित करण्यासाठी क्लायंट-साइड टूल प्रदान करते. सेवा "जशी आहे तशी" प्रदान केली आहे आणि ती तुमच्या वैयक्तिक आणि गैर-व्यावसायिक वापरासाठी आहे.

3. हमींचा अस्वीकरण

सेवा कोणत्याही प्रकारच्या वॉरंटीशिवाय प्रदान केली जाते. सेवा तुमच्या गरजा पूर्ण करेल, त्रुटीमुक्त असेल किंवा सेवेच्या वापराचे परिणाम अचूक किंवा विश्वासार्ह असतील याची आम्ही कोणतीही हमी देत नाही. कन्व्हर्टरचे आउटपुट प्रमाणित करण्यासाठी तुम्ही जबाबदार आहात.

4. दायित्वाची मर्यादा

कोणत्याही परिस्थितीत JSON ते TOON कनव्हर्टर, त्याचे निर्माते किंवा सहयोगी सेवेच्या वापरामुळे किंवा वापरण्यात अक्षमतेमुळे उद्भवलेल्या कोणत्याही प्रत्यक्ष, अप्रत्यक्ष, आनुषंगिक, विशेष किंवा परिणामी नुकसानीसाठी जबाबदार असणार नाहीत.

5. अटींमध्ये बदल

आम्ही आमच्या विवेकबुद्धीनुसार वेळोवेळी या अटींमध्ये सुधारणा करण्याचा अधिकार राखून ठेवतो. म्हणून, आपण वेळोवेळी या पृष्ठाचे पुनरावलोकन केले पाहिजे. अशा कोणत्याही बदलानंतर तुम्ही सेवेचा सतत वापर केल्यास नवीन अटींची तुमची स्वीकृती आहे.