Technical SEO utility · Free browser-based tool
SEO regex
tester.
Test URL patterns against real examples, inspect matching lines and capture groups, and export the results. Useful for URL classification, filtering, and pattern QA.
Pattern and test data
Test JavaScript regular expressions against a list of URLs or text lines. Each non-empty line is evaluated independently.
Enter the pattern without surrounding / delimiters.
Supported JavaScript flags: g, i, m, s, u, y. Do not repeat flags.
Maximum 2,000 lines and 4,000 characters per line.
Matching results
This tester uses the browser's JavaScript RegExp engine. It is useful for testing patterns for JavaScript-based workflows and URL filtering, but regex syntax and behavior can differ across tools such as RE2, PCRE, Google Analytics, and Google Search Console.