What is TOON to JSON Converter?

TOON to JSON Converter is a tool for converting TOON data into JSON. It is useful when you want to inspect LLM output or reuse TOON-based data in tools that expect standard JSON.

The conversion updates in real time, and you can choose the JSON indentation width.

How to Use

1. Paste TOON data into the input area.
2. Review the JSON output.
3. Adjust JSON indentation width if needed.
4. Use the result as JSON in your target workflow.

If the TOON input is invalid, the tool shows an error message instead of JSON output.

Main Settings

JSON Indent Width

You can choose 2, 4, 6, or 8 spaces for the JSON output. A smaller indent is useful for compact review, while a larger indent can be easier to read when sharing the result.

Use Cases

• Reviewing TOON returned by an LLM as JSON
• Passing TOON-based data to existing JSON-focused tools
• Checking the output from json-to-toon by converting it back
• Debugging TOON structure before reuse

Input and Output Example

users[2]{id,name,role}:
  1,Alice,admin
  2,Bob,user

An input like this becomes JSON like the following:

{
  "users": [
    {
      "id": 1,
      "name": "Alice",
      "role": "admin"
    },
    {
      "id": 2,
      "name": "Bob",
      "role": "user"
    }
  ]
}

Things to Keep in Mind

• Some TOON patterns may not restore exactly as expected depending on how they are written
• Dot-style keys are treated as literals and are not expanded into nested structure
• Before reusing the output, it is worth checking whether the structure matches what the next tool expects