JSON Repair
JSON Repair
Automatically fix common JSON errors - trailing commas, single quotes, missing quotes, and more.
How to Use JSON Repair
- 1.Paste broken JSON Paste the invalid JSON - it can have trailing commas, single-quoted strings, unquoted keys, or other common issues.
- 2.Click Repair The tool analyses the JSON and applies targeted fixes to produce valid JSON output.
- 3.Review the result Check the repaired JSON in the output panel. The changes applied are listed so you know what was fixed.
- 4.Copy the fixed JSON Copy the repaired JSON and use it in your project.
JSON Repair & JSON Developer Standards
JSON is the standard format for web APIs and modern applications. Using the JSON Repair helps you check syntax, catch formatting errors, and keep your data clean and readable.
Zero-Server Security
All data entered into JSON Repair runs directly inside your browser sandbox. Nothing is ever sent across the network or saved on remote servers.
Clean & CI/CD Ready
Well-formatted JSON prevents runtime syntax bugs, makes code reviews easier, and ensures smooth API data exchange.
JSON Repair Frequently Asked Questions
What types of JSON errors can be repaired?
JSON Repair handles: trailing commas after the last item in objects or arrays, single-quoted strings (converts to double-quoted), unquoted object keys (adds double quotes), missing commas between items (attempts to insert them), stray quotes, and some truncated JSON structures.
Can it repair completely garbled JSON?
The repair tool works best on JSON that has common human or tool-introduced errors. Fundamentally garbled or corrupted text (such as binary data labelled as JSON) cannot be repaired, as there is no correct structure to recover.
Does repair change my data values?
No. Repair only fixes structural and syntax issues - punctuation, quote types, and bracket matching. Your key names, string values, numbers, and booleans are not modified.
Is JSON5 or JavaScript object syntax supported as input?
JSON Repair can handle several JS-style patterns (unquoted keys, single quotes, trailing commas) that are common when copying from JS source files. Full JSON5 with comments is also handled by stripping comment lines.
Can this tool handle large, complex JSON payloads?
Yes. Because the tool operates directly inside modern V8 JavaScript execution engines, it easily processes complex multi-megabyte payloads containing thousands of nested keys with negligible latency.
Are my proprietary payloads or secrets stored or cached?
No. BeYourTools implements zero tracking, zero telemetries, and zero database persistence. Everything stays strictly inside your browser memory and disappears the moment your tab is closed.