Optimize JSON data for LLMs to reduce tokens. compatible with Windows 10, 11 and older versions.
Token-Oriented Object Notation (TOON) is a compact, human-readable serialization format designed for passing structured data to Large Language Models with significantly reduced token usage. It's intended for LLM input as a lossless, drop-in representation of JSON data.
Paste your large JSON data into the input field.
Choose the level of compression you need.
Get your optimized, token-efficient JSON.
Convert your PDF documents with exceptional accuracy, Native-like performance on Windows operating systems.
Quick conversion of files in seconds with our advanced optimization technology
Maintains text formatting, images, tables, fonts, colors, and all other elements from your original document
All file uploads are processed securely with end-to-end encryption and automatically deleted from our servers after conversion
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Our converter is compatible with Windows 10, 11 and older versions.
Convert files online without downloading any software or plugins. Works directly in your web browser
Works seamlessly on Windows, Mac, Linux, Android, and iOS devices
Forget about installing heavy software like Adobe Acrobat. Our lighter, web-based tool works perfectly on Windows 10 and Windows 11, integrating smoothly with your workflow.
Compatible with Microsoft Edge and Chrome, you can convert files and immediately open them in Microsoft Word for Windows with zero compatibility issues.
Navigate to our converter using your Windows browser.
Click "Upload" to open Windows File Explorer and pick your PDF.
After conversion, the file saves to your specific "Downloads" library location.
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Click "Enable Editing" in the yellow bar at the top of Microsoft Word to make changes.
| Action | Shortcut |
|---|---|
| Open File Dialog | Ctrl + O |
| Print Result | Ctrl + P |
Quickly turn uneditable financial PDF reports into Excel or Word tables.
Edit contracts sent as PDF without retyping everything manually.
No, we preserve the data types, only the representation changes.
Users typically see 30-60% reduction in token usage.
5.0
"This tool is a game-changer for our AI team! We process massive datasets through Claude and TOON format cut our API costs by 45%. The token savings are real and significant."
David Martinez - Lead AI Engineer, TechCorp
5.0
"Perfect for data scientists working with LLMs. The bidirectional conversion gives me confidence that no data is lost. Token stats are incredibly helpful for optimization."
Emily Zhang - Senior Data Scientist
Our free JSON Token Optimizer helps AI developers, data scientists, and businesses dramatically reduce their LLM API costs. By optimizing JSON data into the efficient TOON format, you can achieve 30-60% token reduction while maintaining complete data integrity. This translates directly to lower costs when using ChatGPT, Claude, GPT-4, or any other token-based LLM API.
TOON (Token-Oriented Object Notation) is specifically designed for Large Language Models. It combines YAML's clean indentation structure with CSV's tabular efficiency, creating a format that's both human-readable and token-optimized. The explicit array lengths and field headers also help LLMs parse and validate data more reliably, often resulting in better accuracy than standard JSON.
Whether you're building AI applications, processing large datasets through LLMs, or simply trying to reduce your OpenAI or Anthropic bills, our converter provides instant token optimization with zero learning curve. All conversions happen in your browser for maximum security and privacy.
Optimize LLM prompts, reduce API costs, improve model efficiency, and build more cost-effective AI applications. Perfect for production systems with high token throughput.
Process large datasets efficiently, reduce Claude/GPT API costs, maintain data structure integrity, and improve LLM comprehension with structured tabular formats.
JSON Optimizer, Token Reducer
LLM Cost Saver