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How to Validate TOON Format - Step by Step Guide

Step 1

Input Your TOON Data

Start by inputting the TOON data you want to validate. The validator checks syntax, structure, and format compliance:

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Paste directly: Copy your TOON data and paste it into the validator
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Upload a file: Click "Upload" to select a .toon file from your computer
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Try the sample: Click "Sample" to load valid TOON data as an example
Step 2

Automatic Validation

The validator automatically checks your TOON data in real-time:

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Syntax validation: Checks for proper TOON syntax and structure
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Array length verification: Ensures declared array lengths match actual row counts
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Delimiter consistency: Verifies consistent use of delimiters throughout
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Format compliance: Checks adherence to TOON specification
Step 3

Review Results & Fix Errors

Get detailed validation results with actionable feedback:

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Clear error messages: Detailed descriptions of what's wrong
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Statistics: View line count, array count, and object count
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Common issues help: Guidance on fixing typical TOON format errors

Frequently Asked Questions

What does the TOON validator check?

The validator checks TOON syntax, array length accuracy, delimiter consistency, proper indentation, field header format, and overall compliance with the TOON specification. It provides detailed error messages for any issues found, helping ensure your data is ready for LLM APIs or conversion to JSON, YAML, or other formats.

What are common TOON validation errors?

Common errors include array length mismatches (when [N] doesn't match actual rows), inconsistent delimiters (mixing commas and tabs), missing colons after declarations, incorrect indentation, and malformed field headers.

Can the validator fix errors automatically?

No, the validator identifies errors and provides clear guidance on how to fix them, but it doesn't auto-fix. This ensures you maintain full control over your data and understand the corrections being made.

Does it validate all delimiter types?

Yes! The validator checks TOON data with comma, tab, or pipe delimiters. It also detects if you've accidentally mixed delimiter types, which is a common error.

Is validation performed on my server?

No, all validation happens in your browser. Your TOON data never leaves your computer, ensuring complete privacy and security.

Is the TOON validator free?

Yes, completely free with no limitations. Validate unlimited TOON files with no registration required. Also try our JSON to TOON and TOON to JSON converters.

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