Regexer is an interactive AI regex tutor designed to simplify working with regular expressions — a powerful pattern‑matching language used in programming and data processing. The platform provides an intuitive interface where you can generate regex patterns based on descriptions, test them against sample text, and visualize matches and replacements directly in the browser. It also includes an AI tutor feature that explains why patterns work or don’t work and helps you refine them, making Regexer useful for both beginners learning regex and experienced developers debugging complex patterns. With a built‑in code editor and support for real‑time testing and JSON output, Regexer streamlines regex development tasks like validation, extraction, and transformation.