Build regex visually, see matches highlighted live across multiple flavors, and read a plain-English explanation of every group, anchor, and lookahead.
RegexBuilder is the regex playground that doesn't lie. Type the pattern, paste the test text, see matches highlighted instantly across ECMA-262, PCRE, and Python flavors side-by-side. Hover any token for an English explanation. Save patterns to a personal library with named examples. Pro includes a regex-from-sample mode that infers a pattern from positive and negative examples.
Backend engineers, data engineers, anyone debugging a webhook validation rule.
All plans paid-only. Cancel anytime. Refundable within 14 days if you used less than 10% of your quota.
For solo users and small workloads.
For teams, agencies, and heavy use.
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