# aykutkardas/regexlearn.com

Learn RegEx step by step, from zero to advanced.

Repository: https://github.com/aykutkardas/regexlearn.com
Canonical: https://ross.abutalabs.com/products/regexlearncom
Homepage: https://regexlearn.com
Language: TypeScript
License: MIT
License Family: permissive
Topics: regex, tool, tutorial, guide, learn, regexp
Last push: 2026-07-15T15:55:47+00:00

## Health v2 (maintenance only)
Score: 94/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 92, release rhythm 93, longevity 100
- inputs: {"age_days": 1831, "days_push": 49, "days_rel": 49, "gap_med": 0, "n_releases_24m": 4}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4093, forks 270 (observed 2026-08-28T04:08:34.638406+00:00)

## What it is
RegexLearn is a free, open-source web platform for learning regular expressions step by step, from zero to advanced, with interactive lessons, a cheatsheet, and a browser-based playground. It is built with Next.js and TypeScript and is available in 21 languages.

## Use cases
- learn regex from scratch
- practice regular expressions interactively
- test regex patterns online
- regex cheatsheet for quick reference
- learn regex for SEO
- learn regex in my native language

## When to choose
- you want a structured, interactive regex tutorial that runs in the browser
- you need a quick regex syntax cheatsheet or sandbox to test patterns
- you prefer learning materials in one of 21 supported languages

## When to avoid
- you need a regex library or engine to embed in your code
- you want offline or CLI-based regex tooling
- you need advanced regex topics beyond what the courses cover

## Facets
- artifact type: learning-resource
- maturity: active
- function: documentation, developer-tools
- domain: education, tutorials, developer-tools, web-development
- platform: browser
- tags: regex, interactive-learning, cheatsheet, playground, nextjs, multilingual, web-server, nodejs

## Member repositories
- aykutkardas/regexlearn.com (main) score 94

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:34.638406+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:23:20.231287+00:00, confidence not recorded.
  - readme: https://github.com/aykutkardas/regexlearn.com (fetched 2026-08-28T04:08:34.638406+00:00, sha c75a3e7ae74c)
  - homepage: https://regexlearn.com (fetched 2026-08-29T09:15:19.429639+00:00, sha 57c7c2991f84)
- Data as of 2026-08-30T08:39:29.467469+00:00.