Regex Match Tracer is a tool to compose and debug regular expressions. It provides a visual environment to you. In the pattern edit box, different parts of regular expressions are displayed in different color. While the pattern changing, the tree structure and the capture-group information will be updated synchronously. The current element around the cursor will be highlighted when the caret's position changes. Basic features: 1. Visual Edit Environment, the tree and the group box updates synchronously.. 2. The pattern can be exported into language code. 3. Import pattern from language code, such as C++'s string. 4. Perl regular expression syntax is supported.