Regex Tester

Test and debug regular expressions instantly

Regular Expression Tester

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Common Regex Patterns

Regex Flags

Global (g)

Find all matches, not just the first one

Ignore Case (i)

Case-insensitive matching

Multiline (m)

^ and $ match start/end of lines

Regex Tips

Start Simple

Begin with basic patterns and add complexity

Test Thoroughly

Test with various inputs including edge cases

Use Groups

Capture groups help extract specific parts