This app isn't in any of our charts yet.
First release: learn regex by writing it, checked by the real engine of your language (Python, JavaScript/TypeScript, Java/Kotlin, C#/.NET, PHP/Perl, Go/Rust, Ruby, POSIX). Matches light up as you type, mistakes come back, hints step by step. Start free, unlock Pro with a one-time purchase. No account, no ads.
AI is writing your regex and you have no idea what it means? Become an expert.
Your boss is standing right behind to you. You have to type a simple regex. No time to ask AI. Getting nervous? 'Regex Trainer: Daily Drills' gets regular expressions into your head and your fingers – so you write them on the spot and check anyone's pattern at a glance. Not by explaining. By making you do it, a few minutes a day. TYPE IT. WATCH IT MATCH. Every exercise is a real-world text and a goal. You type your pattern, and the matches light up while you type. Selected the wrong thing? Missed a spot? You see it instantly. That instant loop is what makes it click. YOU CAN'T FAKE YOUR WAY THROUGH No multiple choice. Every round brings new sample texts, so remembering the answer doesn't help, only understanding does. Stuck? Hints lead you one step at a time, so you still get there yourself. WHAT YOU GET WRONG COMES BACK The app keeps track of which exercises gave you trouble and brings exactly those back. A few minutes a day, and the patterns stick. LEARN THE REGEX YOU ACTUALLY SHIP What most tutorials won't tell you: a pattern that works in Python can quietly fail in JavaScript. That's why every answer here runs on the real engine of your language – Python, JavaScript/TypeScript, Java/Kotlin, C#/.NET, PHP/Perl, Go/Rust, Ruby or POSIX (grep/sed/awk). What passes here behaves the same in your code. FROM \d TO THE HARDCORE CHALLENGES Start with the basics. Finish with the patterns real projects need: IP addresses, dates, UUIDs, version numbers, quoted strings with escapes. Ten hardcore challenges stand between you and the crown. Keep a daily streak. Level up. Share a solved puzzle with your team – without giving away the answer. TRY IT FOR FREE NOW!
Not enough data yet.
Google Play only. Downloads from daily Top free ranks (or the store's install count); in-app revenue from Top grossing ranks, calibrated on AppTweak's US estimates, or else from downloads; ads from public ad benchmarks. Not reported figures.