Build, test, and ship regex with less friction.

Documentation for the regex101 platform, the commercial parser, enterprise deployment, and the new Pro benchmark workflow.

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>20Mregex101 users

2,000+regex parser tests

8supported regex flavors

Documentation

regex101 Pro

Benchmark regex changes before they become production incidents.

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Regex Parser

Commercial parser documentation, capabilities, API usage, and pricing.

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Enterprise Licenses

Self-host regex101 with deployment, legal, and operational guidance.

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Application Docs

API notes, FAQ entries, and platform guidance for the core regex101 application.

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Community

regex101 keeps evolving with direct feedback from developers using it every day. If you want to follow along or contribute ideas, join the GitHub community.