What is an invalid escape character in JSON?

A backslash followed by a character that JSON does not recognise as an escape sequence. JSON only supports: \\ \" \n \r \t \b \f \uXXXX. A Windows path like C:\Users\Alice contains \U and \A which are invalid.

Why do Windows file paths break JSON?

Backslash is the escape character in JSON. A path like C:\Users must be written as C:\\Users in JSON — the backslash itself must be escaped. Copying paths directly without escaping always fails.

Does JSONBlitz fix regex patterns in JSON strings?

Yes. Regex patterns contain backslash sequences like \d or \w that are not valid JSON escapes. JSONBlitz escapes the backslashes so they are preserved correctly as string content.

Will escaping change the actual value?

No. C:\\Users in JSON represents the string C:\Users — the data is identical. Only the JSON representation changes.

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Frequently Asked Questions

What is an invalid escape character in JSON?: A backslash followed by a character that JSON does not recognise as an escape sequence. JSON only supports: \\ \" \n \r \t \b \f \uXXXX. A Windows path like C:\Users\Alice contains \U and \A which are invalid.
Why do Windows file paths break JSON?: Backslash is the escape character in JSON. A path like C:\Users must be written as C:\\Users in JSON — the backslash itself must be escaped. Copying paths directly without escaping always fails.
Does JSONBlitz fix regex patterns in JSON strings?: Yes. Regex patterns contain backslash sequences like \d or \w that are not valid JSON escapes. JSONBlitz escapes the backslashes so they are preserved correctly as string content.
Will escaping change the actual value?: No. C:\\Users in JSON represents the string C:\Users — the data is identical. Only the JSON representation changes.