Two quests, one page
Switch between Regex Golf and CSS Selector Golf using the tabs above. Each has 10 progressive levels with live validation, hints, and star scoring by length. Progress is saved locally. Use Ctrl+←/→ to change levels.
Level
Par: – chars
/
/
Type a regex…
Length: 0
✅ Must match
❌ Must NOT match
Level
Par: – chars
CSS
Type a selector…
Length: 0