Frequently Asked Questions
Common questions about Regex Playground
Type your regex pattern in the pattern field and paste your test string below. Matches are highlighted instantly as you type. You can toggle flags like global (g), case-insensitive (i), and multiline (m).
Capture groups are parts of a regex enclosed in parentheses (). When your pattern matches, each group captures a specific portion of the match. This tool shows all capture groups with their index and matched value, making it easy to extract specific data from text.
Yes. Once your pattern is working, the tool generates ready-to-use code snippets for JavaScript, Python, Java, and other languages. Copy the snippet directly into your project.
The tool uses JavaScript regex engine (ECMAScript). This covers the vast majority of common regex patterns including lookaheads, lookbehinds, named groups, and Unicode properties.