About JSON Repair
This tool is inspired by josdejong/jsonrepair and uses the jsonrepair library with additional custom repair logic.
It can automatically fix common JSON syntax errors:
- Missing quotes around keys
- Single quotes instead of double quotes
- Trailing commas in arrays and objects
- JavaScript-style comments
- Unquoted string values
- Missing commas between elements
- Stray quotes in keys
- Missing closing brackets and braces
- JavaScript concatenated strings
- Hexadecimal numbers
- JavaScript special values (NaN, Infinity)
- Unescaped newlines in strings
- Python constants (None, True, False)
- JSONP notation (callback functions)
- Fenced code blocks (\`\`\`json ... \`\`\`)
- Ellipsis in arrays and objects ([...])
- MongoDB data types (NumberLong, ISODate)
- Special whitespace and quote characters
- Newline delimited JSON (NDJSON)
- Double-escaped JSON strings
- Markdown code blocks with language specifiers
- JSON with non-JSON prefix text