TOON Fixer - Fix Broken TOON Format Data, Repair Token-Optimized Notation Errors Online Free
Free online TOON fixer tool to detect, repair, and fix TOON format errors, malformed delimiters, and broken row structures automatically.
How to Fix TOON Format Errors - Step by Step Guide
Paste Your Broken TOON Data
Got broken TOON (Token-Optimized Notation) data that's causing parsing errors? TOON is designed to reduce token usage in language model prompts by using compact delimiters. After fixing, use our TOON validator, TOON formatter, or TOON to JSON converter. Paste your problematic TOON data:
Paste broken TOON: Copy error-prone TOON data from your prompt pipelines, data processing scripts, or token optimization workflows
Fix common errors: Automatically repairs mismatched delimiters, broken pipe headers, missing tilde separators, and column alignment issues
Try sample TOON: Click "Sample" to load broken TOON data and see the tool in action
Common TOON format issues include mismatched column counts, mixed delimiter usage (pipes vs tildes), missing header rows, and empty field values.
Review Common TOON Errors
1. Mismatched Column Count Between Header and Rows
Wrong:
name|age|email|role [email protected]
Correct:
name|age|email|role [email protected]~admin
2. Mixed Delimiters (Pipes in Data Rows)
Wrong:
name|age|email Alice|28|[email protected]
Correct:
name|age|email [email protected]
3. Missing Header Row
Correct:
name|age|email [email protected] [email protected]
4. Empty or Missing Field Values
Wrong:
name|age|email [email protected] Eva~31~~
Correct:
name|age|email [email protected] Eva~31~N/A
Apply Fixes and Validate Your TOON Data
Click the "Fix TOON!!" button to automatically repair your TOON data. The tool will fix delimiter issues, align columns, and ensure proper TOON format structure.
TOON Format Best Practices
Use pipes for headers only: Headers use pipe (|) delimiters while data rows use tilde (~) separators — never mix them. See the TOON syntax specification for details
Validate before using in prompts: Always validate TOON data with our TOON validator before sending to language model APIs
Keep column counts consistent: Every data row must have the same number of values as the header has columns
Use TOON for token savings: TOON can reduce token usage by up to 50% compared to JSON — use our JSON to TOON converter to optimize your data. Learn about prompt optimization techniques
Frequently Asked Questions
What is TOON format and why do I need a fixer?
TOON (Token-Optimized Notation) is a compact data format that uses pipe-delimited headers and tilde-separated row values to minimize token usage in language model prompts. A TOON fixer helps you quickly repair malformed data so your language model pipelines process data correctly.
How do I fix broken TOON data online?
Simply paste your broken TOON data into the editor above. The tool will automatically detect errors such as mismatched column counts, mixed delimiters, missing headers, and empty fields. Click the fix button to apply corrections and get valid TOON data instantly.
Can the fixer handle multi-table TOON documents?
Yes! The fixer can process TOON documents containing multiple tables. It will detect and repair each table's header and data rows independently, ensuring proper delimiter usage and column alignment across all tables. For complex data, consider using JSON as an intermediate format.
What TOON errors can this fixer repair?
The fixer handles common issues including mismatched column counts between headers and data rows, mixed pipe/tilde delimiters, missing header rows, empty field values, extra delimiters, and whitespace problems. It preserves your original data while fixing structural issues.
Is the TOON fixer free to use?
Yes, completely free with unlimited usage and no registration required. Fix as many TOON data issues as needed with full error detection and auto-correction features at no cost.
Can I convert fixed TOON to other formats?
Absolutely! Once your TOON data is fixed, you can use our TOON to JSON converter to transform it into JSON, convert it to CSV format, or validate it with our TOON validator for further processing.
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