An inline regex tester and debugger that lives in your browser. Real-time match highlighting, pattern explanation, and a built-in reference — no more switching tabs to regex101.
See matches highlighted inline as you type. No submit button, no waiting — instant feedback on every keystroke.
FREEToggle global, case-insensitive, multiline, dotAll, and unicode flags with one click. See how each flag changes results.
FREESee exactly how many matches were found, with each match displayed in a scrollable list. Quick overview at a glance.
FREEBuilt-in library of common regex patterns: email, URL, phone, IP, date, hex color, HTML tags. Click to insert instantly.
FREESave your frequently used regex patterns for quick access. Free users get 3 slots; Pro gets unlimited.
FREE (3 slots)Invalid regex? Get an immediate, clear error message. No guessing what went wrong.
FREESee named capture groups displayed next to each match. Debug complex patterns with named groups effortlessly.
PROTest find-and-replace with regex. Enter a replacement string and see the result instantly. Supports backreferences.
PROGet a human-readable breakdown of any regex pattern. Understand what each token, group, and quantifier does.
PROSee index positions, lengths, and capture group values for every match. Full match forensics at your fingertips.
PROSave as many regex patterns as you want. Build your personal regex library over time.
PROExport your entire regex collection as JSON and import on another machine. Share patterns with your team.
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