https://www.regextester.com/23
Match a valid hostname - Regex Tester/Debugger
Regular Expression to Check whether a string is a properly formatted hostname.
regex testermatchvalidhostnamedebugger
https://404found.com/tools/regex-tester
Free Online Regex Tester - Test Regular Expressions
Test and debug your regular expressions online for free. Validate patterns against text and find matches instantly.
test regular expressionsfree onlineregex tester
https://kitmul.com/en/developer/regex-tester
Regex Tester; Pattern Checker - Online & Free - Kitmul
Test regex patterns against text with live matching, capture group highlighting, and plain English explanations of each token; free and private.
regex testerpattern checkeronline free
https://www.debuggex.com/
Debuggex: Online visual regex tester. JavaScript, Python, and PCRE.
Test your regex by visualizing it with a live editor. JavaScript, Python, and PCRE.
regex testeronlinevisualjavascriptpython
https://www.dailydev.tools/nl/tools/regex-tester
Regex-tester | DailyDevTools
Test reguliere expressies in realtime
regex tester
https://www.regexpal.com/?flags=im®ex=%5E((%3F!Views).)*web%5C.config%24&input=c%3A%5CSomething.config%0Ac%3A%5CWeb.config%0Ac%3A%5Cinetpub%5CBeta%5CViews%5CWeb.config%0Ac%3A%5Cwhat%0Ac%3A%5CMyweb.config2%0Ac%3A%5Cinetpub%5CBeta%5CWeb.config%0Ac%3A%5CViews%5Cblah.config
Regex Tester - Javascript, PCRE, PHP
Test your Javascript and PCRE regular expressions online.
regex testerjavascriptpcrephp
https://devtoys.pro/pl/blog/testers-guide
Dev Blog: RegEx Tester, JSONPath, and XML Validator for Developers | DevToys Web Pro
Dec 21, 2025 - Technical guide to testing tools: regex tester for pattern matching, JSONPath evaluator for JSON queries, XML validator for syntax checking. Practical examples...
dev blogregex testerxml validatorfor developersweb pro