LLM Payload String Escaper

String Escaper safely converts multi-line code or text into a JSON-safe string by escaping special characters. When you need to embed Python, JavaScript, or any code snippet inside a JSON property — for LLM prompts, API payloads, or configuration files — raw newlines and quotes break the JSON structure. This tool handles the escaping correctly: newlines become \n, quotes are escaped, and backslashes are preserved so they don't accidentally escape your escape sequences.

The escaper processes the input character by character. Newlines become \n, carriage returns become \r, tabs become \t, double quotes become \", and backslashes become \\\\ (doubled to prevent double-escaping). The output is a single-line string safe for use as a JSON property value.