Regex Tester

Write a regular expression, paste test strings, and see matches highlighted in real time. Inspect capture groups, get explanations, and export match results.

Features

• Real-time match highlighting
• Capture group inspection
• Flag toggles (g, i, m, s, u, v)
• Export match results as JSON

Frequently Asked Questions

Does the tester support capture groups?

Yes. Named and numbered capture groups are listed alongside each match so you can inspect extracted values.

Which regex flavors are supported?

The tool uses JavaScript's regex engine, including ES2024 features like the v flag and named groups.