JSON Tools

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JSON Formatter

Format & Validate JSON

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Convert to CSV format

JSON to XML

Convert to XML format

JSON to YAML

Convert to YAML format

Table Viewer

View as interactive table

Tree Viewer

Browse tree structure

Schema Validator

Validate against schema

Auto FixCurrent

Fix common errors

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Generate API requests

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JSON Auto Fix

Automatically repair broken JSON with intelligent error detection. Fix trailing commas, single quotes, unquoted keys, and comments instantly with customizable repair strategies.

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How to Use JSON Auto Fix

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Case Study: JSON Auto Fix for Legacy Data Migration

During a legacy system migration, the team used the best JSON repair tool for developers to clean up thousands of malformed JSON records. With the JSON auto fix with examples feature, they identified and corrected trailing commas, single quotes, and unquoted keys, reducing manual cleanup time by 90% and ensuring data integrity throughout the migration process.

Frequently Asked Questions

What types of JSON errors can be automatically fixed?

The tool can fix four common errors: trailing commas, single quotes instead of double quotes, unquoted property keys, and comments in JSON. These cover most syntax issues found in broken JSON.

Can I choose which fixes to apply?

Yes! Use the strategy checkboxes to enable or disable specific fix types. This gives you full control over the repair process.

Is this JSON auto fix tool free?

Absolutely! All repair features are completely free with no usage limitations, making it an ideal free JSON repair tool online.

What if auto fix cannot repair my JSON?

If auto fix fails, the tool will display the specific error. You may need to manually correct structural issues like mismatched brackets or severely malformed syntax.

Are there JSON auto fix examples for beginners?

Yes! Click Load Example to see sample broken JSON and how each repair strategy works on common error patterns.

How does it handle nested JSON structures?

The tool recursively processes nested objects and arrays, applying fixes at all depth levels to ensure complete repair.

Can it fix JSON from API responses?

Yes, it's perfect for cleaning up malformed API responses, especially from legacy systems or improperly configured endpoints.

Does it preserve my original data?

Yes, the tool only fixes syntax errors and preserves all data values, structure, and formatting intent.

Can I use this for batch processing?

Currently supports single JSON documents. Batch processing for multiple files is available in our premium plan.

How fast is the repair process?

Repairs are instant for most JSON sizes. Very large documents (>1MB) may take a few seconds to process.

Does it work offline?

No, this is a web-based tool requiring an internet connection. However, all processing happens client-side for privacy.

Can I use this on mobile devices?

Yes! The interface is fully responsive and works smoothly on smartphones and tablets for quick JSON repairs on the go.