Regexcellent
Learn regex with interactive lessons and a live playground
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Regexcellent - Learn regex with interactive lessons and a live playground

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Learn regular expressions by writing them. Regexcellent combines 40 interactive lessons across eight modules with a live playground, match highlighting, capture details, token explanations and saved patterns. Practice with regex golf and a daily rotating challenge, or look up tokens in the reference. Export supported Swift, Kotlin, JavaScript and Python snippets with engine-difference warnings. Learning works offline without an account. Every feature is free; optional tips unlock nothing.

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Hi Product Hunt, I'm Mihail, the maker of Regexcellent. It brings an interactive regex course, a live playground and short practice challenges into a native app. The course has 40 lessons across eight modules. Write patterns against sample text, inspect matches and use hints when needed. The Playground lets you experiment with captures and matching flags, save useful patterns and see token explanations. The reference and regex golf offer other ways to practice. Export supported Swift, Kotlin, JavaScript and Python snippets. Regex engines differ, so exports include warnings and can refuse unsupported translations; test snippets with your real input. Every lesson and feature is free, with no ads or subscription. Core learning tools work offline without an account. Optional tips unlock nothing, and optional sync stays within the Apple or Android ecosystem. Gallery examples use sample data and identify previews. I'd love to hear which patterns are hardest to understand and how the explanations could be clearer.