Regex Puzzles: Practice Regex

Solve regex puzzles, test patterns live, and master regular expressions.

Regex Puzzles is an interactive way to learn and practice regular expressions (regex) through short challenges and hands-on exercises. Improve your pattern-matching skills by solving puzzles, experimenting with regex patterns, and learning the syntax used in real development work.

Whether you are learning regex for the first time, preparing for coding interviews, or improving your development skills, this app provides practical training through focused regex puzzles and quizzes.

Solve Regex Puzzles

Practice regular expressions by solving structured challenges.

325 built-in regex puzzles

4 difficulty levels: Easy, Medium, Hard, and Impossible

Learn by writing regex patterns that match exactly the correct text

Build real skills instead of memorizing regex syntax

Regex Quiz & Challenge System

Each puzzle works like a regex quiz, testing your understanding of pattern matching.

Earn medals for shorter and cleaner regex solutions

Improve your regex logic and pattern design

Track progress as you complete increasingly complex challenges

Regex Playground

Experiment with your own patterns in a dedicated testing environment.

Test custom regex patterns

Live match highlighting while typing

Quickly debug and refine expressions

Built-In Regex Cheat Sheet

Keep essential regex syntax within reach.

Common tokens, quantifiers, and anchors

Quick regex examples

Useful reference while solving puzzles

Designed for Learning and Practice

Offline-first progress saving

Search and filter levels by completion

Light and dark theme support

Optional sync when new puzzle levels are released

Regex Puzzles is ideal for developers, students, and anyone who wants to improve their regex skills through puzzles, quizzes, and real pattern-matching practice.

Practice regularly and sharpen your regular expression knowledge one puzzle at a time.