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Regex & Cron
Live regex tester with match highlighting, cron expression builder, and human-readable cron translation.
Regex Tester / Debugger
Live regex testing with match highlighting, captured groups, and flag controls.
Cron Expression Parser
Translate cron expressions into plain English — with a library of common examples.
Cron Expression Builder
Build a valid cron expression visually from minute, hour, day, month, and weekday fields — with a human-readable summary and next 10 run times.
Regex Cheat Sheet
Searchable reference for regex anchors, character classes, quantifiers, groups, lookaround, and flags — with copyable syntax and live examples.