Developer Tools · Vendor site 2026-10-04
regex101 is an online regular expression tester, debugger, and quick reference supporting flavors such as PCRE2. The site provides live match highlighting, explanation panels, and shareable patterns for iterative regex development.
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Free
Free
Core regex testing features are available in the browser without a published monthly USD plan on the homepage fetched here.
No retained pricing changes yet. A current price alone does not establish a historical trend.
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Yes. RegEx101 has an ongoing free plan.
RegEx101 is listed as free. No paid plan with a published price was found.
We could not confirm API access for RegEx101.