json●repair

Fix Invalid JSON

Locate the fault. Repair the structure. Restore the payload.

Precise pointer + auto-fix + formatted output.

Client-side processing

No data leaves your browser.

Before (Raw JSON)

After (Fixed + Formatted)

Before / After

Before

After

Quick guide

Paste invalid JSON and let the parser identify the exact failure point. Use the pointer to locate issues such as trailing commas, missing quotes, or mismatched brackets. Apply Auto-Fix for common repairs, then review the result.

The output is formatted and ready for API requests, configuration files, or test fixtures.

Real example

Input:
{name:"Jane", "age":31,}

Output:
{"name":"Jane","age":31}

Recommended flow

Error Explainer → understand the error
JSON Fixer → repair syntax
JSON Validator → confirm validity
JSON Formatter → improve readability

FAQ

Can it fix every error?

No. It handles common syntax issues safely, then you refine edge cases.

Why show line and column?

It removes guesswork and points directly to the failing character.

Should I trust auto-fix blindly?

Use it as a first pass, then validate and review.

Learn more

How to Fix Invalid JSON Step-by-step debugging workflow.
Common JSON Errors Real broken examples and fixes.
JSON Formatting Guide Readable structure and debugging tips.

Learn how it works

Privacy

All processing happens locally. No uploads, no tracking, no external calls.

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