Regular Expressions are patterns used to match character combinations in strings. In JavaScript, regular expressions are represented by /pattern/flags. This tool uses new RegExp(pattern, "g") for global matching.

• 🔍 Enter a regular expression (without slashes) and test text, then click "Test" to view all matches.
• ⚡ The g flag is used by default for global searching, returning an array of all matches.
• 📌 If the regular expression is invalid, an error message will be displayed in the results box.
• 💡 Click the "Example" button to pre-fill an email matching example.
• 📊 Real-time character counts are shown below the input and result boxes.