URLs have a surprisingly complex structure: protocols, subdomains, ports, paths, query parameters, and fragments all combine in ways that make regex validation challenging. A pattern that seems to work will often fail on edge cases like URLs with authentication credentials, IPv6 addresses, or international domain names. Use this tester to throw your most unusual URLs at your pattern and see exactly what matches, helping you build robust extraction and validation logic.
Test regular expressions with live, highlighted match feedback.
hello@example.com$1 hello$2 examplesupport@test.com$1 support$2 testPowered by ToolboxHub
g for all matches, i for case-insensitive, m for multiline.