Regex Tester & Matcher
Test, debug, and validate regular expressions in real-time. Features captured groups inspector, flags selector, and common cheatsheet presets.
100% In-Browser. Evaluated using native JavaScript V8 regular expression engine.
How to Use Regex Tester & Matcher
Follow these simple steps to complete your task in seconds.
Enter Regex Pattern
Type your regular expression pattern or pick from ready-made presets like Email, URL, or Date.
Toggle Flags & Enter Test Text
Select execution flags like Global (g), Case-Insensitive (i), or Multiline (m), and paste your sample text.
Inspect Matches & Captured Groups
View matching indices, captured subgroups ($1, $2), and copy the completed expression directly.
Why Choose Quicklity for Regex Tester & Matcher
Engineered for speed, privacy, and flawless conversion accuracy.
Real-Time Match Highlighting
Evaluates your regular expression instantaneously as you type without latency or page reload.
Captured Groups Inspector
Inspect parentheses sub-matches ($1, $2, etc.) and match start indices with detailed breakdown.
Built-in Regex Cheatsheet
Instant 1-click presets for validating Email addresses, web URLs, IPv4 addresses, and dates.
100% Client-Side Privacy
Your confidential text and data are processed locally and never transmitted across the network.
Frequently Asked Questions about Regex Tester & Matcher
Everything you need to know about using this tool.
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