Regex Tester

Regular Expression Pattern

Flags: g (global), i (ignore case), m (multiline), s (dotall), u (unicode), y (sticky)

Valid regex - 2 matches

Common Patterns

Test String

Highlighted Result

Match Details (2)

Match 1:support@example.com

Position: 14

Match 2:sales@company.org

Position: 37

About Regex Tester

What is a Regular Expression?

A Regular Expression (regex or regexp) is a sequence of characters that define a search pattern. It's used for pattern matching within strings. Regex is powerful for tasks like validation (email, phone), searching, and text manipulation.

Features

Real-time Testing: See matches highlighted instantly as you type.

Detailed Match Info: View each match with its position and captured groups.

Flag Support: Test with different flags (global, case-insensitive, multiline, etc.).

Common Patterns: Quick-access buttons for frequently used regex patterns.

FAQ

What are regex flags?

Flags modify how the regex works: 'g' finds all matches, 'i' ignores case, 'm' enables multiline mode, etc.

How do I learn regex?

Start with simple patterns and use this tool to experiment. The common patterns provided are great examples to learn from.