Regex Cheatsheet
Quick reference of the main regular expressions — quantifiers, classes, anchors, groups, lookarounds, flags. With clickable examples and explanations. Everything in your browser.
A quick regular-expression reference
Regular expressions do a lot, but the syntax slips out of memory between one use and the next. This cheat sheet gathers the most important regex elements in one place, so you can refresh the syntax without digging through the documentation.
Quantifiers, character classes, anchors, groups, lookarounds and flags are all covered, each with clickable examples and an explanation of what it does. It isn't a dry list: you see the pattern at work, which helps you understand and remember it. It's good both for someone learning and for someone who just wants a quick reminder.
It all stays available in the browser, with no install. It's the right reference to keep at hand next time you go to write a regex.
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