Decode JSON escaped strings and validate whether the input can be parsed as a strict JSON string, object, or array value.
JSON String Unescape transforms text for safer use in web, API, configuration, spreadsheet, or serialized-data workflows. It reports conversion counts, output size, syntax issues, and a data integrity score.
Escaping improves format safety, but it does not replace input validation, authentication, authorization, or contextual security review.
Example input: "John \"Kim\"\nSeoul". The result area shows the converted value plus integrity, size, and validation metrics.
Processing happens locally in the browser. The tool calculates character analysis, syntax validation, output byte size, expansion, and format-specific warning signals.
Escaping improves format safety, but it does not replace input validation, authentication, authorization, or contextual security review.
Paste a valid JSON string value and decode escaped quotes, newlines, tabs, and Unicode sequences.
The string may be missing quotes, contain invalid escapes, or include broken control characters.
JSON Unicode escapes such as backslash-uAC00 are decoded into their corresponding characters.
Yes, when the decoded value is a JSON object or array, the tool can pretty-print the structure.
Use parse diagnostics to find broken quotes, invalid backslashes, or truncated Unicode escape sequences.
| Module | Purpose |
|---|---|
| Conversion Engine | Applies the selected escape, unescape, encoding, or parsing rules. |
| Syntax Validation | Detects malformed entities, invalid escapes, quote errors, or parser failures. |
| Data Integrity Score | Scores whether the output is safe and complete for the selected context. |
| Security Notes | Highlights XSS, injection, parser, and spreadsheet import risks. |
| Export Tools | Copies or downloads TXT, CSV, and JSON reports. |