Regex Tester
Our web & development tool computes regex accurately. Enter your inputs for detailed analysis and optimization tips. Free to use with no signup required.
Reviewed by Daniel Agrici, Founder & Lead Developer
Reviewed by Daniel Agrici, Founder & Lead Developer
Formula
JavaScript RegExp: new RegExp(pattern, flags)
Tests a regular expression against a string and shows all matches. Common: \d (digit), \w (word char), . (any), * (0+), + (1+), ? (0-1).
Worked Examples
Example 1: Find phone numbers
Problem:Pattern: \\d{3}-\\d{4}, Text: \"Call 555-1234 or 555-5678\"
Solution:2 matches: 555-1234, 555-5678
Result:2 matches found
Reviewed by Daniel Agrici, Founder & Lead Developer · Editorial policy