String Escape / Unescape

What is String Escaping?

String escaping is the process of modifying characters in a string to ensure they are treated as literal text rather than executable code or structural markup by a parser. When inserting user data or variable text into different contexts (like HTML documents, SQL queries, or JSON structures), special characters can break the syntax and lead to errors or security vulnerabilities.

Why Escape Strings?

• Prevent Injection Attacks: Escaping special characters is a crucial defense against attacks like SQL Injection and Cross-Site Scripting (XSS). For instance, unescaped HTML can execute malicious JavaScript if rendered directly in a browser.
• Preserve Data Integrity: When converting objects to JSON or text to CSV, failing to escape quotation marks or commas can corrupt the data structure, making it unreadable by the receiving system.
• Ensure Syntax Validity: Different languages use specific characters for syntax. If a string contains those characters, it must be escaped to tell the parser, "treat this as part of the string value, not as a command."

Common Escape Formats Supported

• JSON: Converts backslashes, double quotes, and control characters (like newlines) into their escaped representations (e.g., \", \\n). Note: The tool processes string values, not entire objects.
• HTML: Converts &, <, >, ", and ' into HTML entities (e.g., <) to render safely on web pages.
• SQL: Escapes single quotes by doubling them (''), which is the standard method for safely inserting literal string values into SQL queries without breaking the syntax.
• URL: Uses standard URL encoding to safely pass parameters in web addresses.
• CSV: Wraps fields containing commas or quotes in double quotes, and escapes internal double quotes by doubling them, adhering to standard RFC 4180 rules.

Privacy & Security

This string escape/unescape tool runs completely offline. All processing happens locally in your web browser using JavaScript. We do not transmit your input data to any server, making this tool entirely safe for sensitive information, credentials, or proprietary code.