JSON String

In JSON, a string is a fundamental data type used to represent human-readable text, such as names, messages, or file paths. A valid JSON string:

• Must be enclosed in double quotes (").
• May contain Unicode characters (e.g., emojis or non-Latin scripts).
• Must escape special characters using the backslash (\\).
• Cannot contain unescaped control characters such as newlines, tabs, or quotes.

Common escape sequences in JSON strings include:

• \\ — Backslash
• \" — Double quote
• \n — New line
• \t — Tab
• \b — Backspace
• \f — Form feed
• \uXXXX — Unicode character (e.g., \u2764 = ❤️)

Example of Escaping

{
    "message": "He said, \"Hello, JSON!\" This is a valid string.",
    "path": "C:\\Users\\JohnDoe",
    "emoji": "I \u2764 JSON"
  }

Improperly formatted strings are a common source of syntax errors in JSON. Always use a linter or JSON Validator tool to ensure correctness.

Strings in JSON cannot span multiple lines directly. If a line break is needed inside a string, use the \n escape character.

In JavaScript and most programming languages that handle JSON, string encoding and decoding are handled automatically — but understanding these basics helps when manually writing or debugging JSON data.