Regex Tester & Matcher

Test Rust-safe or browser JavaScript regular expressions with ranges, captures, highlights, limits, and replacement previews.

Optional server run

Local processing remains the default. A server run is a separate manual action and requires fresh consent every time.

Show match details and capture groups

Maximum matches

Linear-time Rust regex; flags g, i, m, s. Look-around and backreferences are unsupported.

Input Document / Text

Result

0 chars