How does the JSON to TOON converter work?

Our converter parses your JSON data and transforms it into TOON format by removing redundant syntax like braces, brackets, and excessive quotes. The result is a cleaner, more compact representation that maintains full data integrity while reducing token count significantly.

Is my data safe when using this converter?

Absolutely. All conversions happen locally in your browser or on our secure servers without logging. We never store, transmit, or analyze your data. Your JSON and TOON content stays completely private.

How much token reduction can I expect?

Typical token reduction ranges from 30% to 60%, depending on your data structure. JSON with repetitive keys, nested objects, and arrays sees the highest savings. The converter shows real-time token counts so you can see exact savings.

Can I convert TOON back to JSON?

Yes! The conversion is fully reversible. Use the 'TOON → JSON' button to convert TOON format back to standard JSON without any data loss. Both directions maintain complete data integrity.

What file formats are supported?

You can import .json and .toon files directly, or paste content into the editor. Export your converted data as .json or .toon files with one click.

Is there a size limit for conversion?

The browser-based converter handles files up to several megabytes efficiently. For very large files, we recommend using the @toon-format/toon npm package for streaming conversion.

JSON → TOON Converter

Convert JSON to TOON format and reduce LLM token usage by up to 60%. TOON (Token-Oriented Object Notation) is a compact, human-readable format designed for efficient data representation in AI and LLM applications.

Why Use JSON to TOON Converter?

Reduce LLM Costs

Save 30-60% on API costs by sending compact TOON instead of verbose JSON to LLMs.

Instant Conversion

Real-time conversion with live token counting. No waiting, no server delays.

100% Private

All processing happens locally. Your data never leaves your browser.

Bidirectional

Convert JSON to TOON and back. Full data integrity in both directions.

How to Convert JSON to TOON

Step 1

Paste or Import JSON

Enter your JSON data in the left editor or click 'Import' to upload a .json file.

Step 2

Click Convert

Press 'JSON → TOON' button or use Ctrl+Enter keyboard shortcut to convert instantly.

Step 3

Review Token Savings

See the token count comparison and percentage reduction displayed in real-time.

Step 4

Copy or Download

Copy the TOON output to clipboard or download as a .toon file for your projects.

Load JSON via URL

Instantly load and convert any publicly hosted JSON file by adding its URL as a parameter. The converter will fetch the JSON and automatically convert it to TOON format.

How It Works:

Add ?url= followed by the URL of your JSON file. The converter will fetch the data and convert it to TOON automatically.

Example:

https://jsontoontools.cloud/tools/json-to-toon-converter?url=https://jsontoontools.cloud/gist/sample.json

Perfect for sharing pre-loaded links, bookmarking, or integrating with your development workflow.

Converter Features

Real-time token counting for JSON and TOON

Auto-format JSON on paste

Import .json and .toon files

Export to .json or .toon format

Keyboard shortcut (Ctrl+Enter)

Resizable editor panes

Syntax highlighting

Copy to clipboard with one click