Observed arrival · 2026-09-10

Regexcellent — Learn regex by writing it

regexcellent.app Observed source

Editorial interest 82/100 Selection signal · not a rating of the site

An interactive regex course with 40 lessons, a live playground, reference material, and short regex-golf challenges.

Landing page captured for the 2026-09-10 issue.

Field notes

The planned app combines lessons, a pattern-testing Playground, a token reference, and puzzle-style practice rather than presenting regex as a static cheat sheet. Its scope is unusually explicit: 40 lessons in eight modules, 24 regex-golf challenges, and exports for Swift, Kotlin, JavaScript, and Python. The page also says progress, saved patterns, and unfinished Playground work remain on-device, with no account, cloud sync, ads, purchases, or subscriptions.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

◉HumanPersonal, local, civic, or handmade

One card from the complete issue

All Approaches to Piccadilly

405,063 arrived 1,000 judged 997 catalogued Enter the complete issue