Observed arrival · 2026-11-03
Regexdrill puts regex through unseen tests
A browser-based regex practice tool with live match highlighting and hidden test strings across five levels.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- People learning regex or practicing practical pattern-writing
- Worth noticing
- Five of 52 exercises are free without signup; the curriculum runs from character classes through lookbehinds.
Field notes
The five levels cover basics, grouping and alternation, real-world validation, extraction and cleanup, and advanced features. Example tasks include checking a 24-hour time against unseen values and working with log lines, CSV fields, and URLs. The page identifies JavaScript as the regex flavor and says browser storage keeps progress and recent patterns; an account is offered for cross-device syncing.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
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