# RegExr: Learn, Build, & Test RegEx

- URL: https://regexr.com/
- Domain: regexr.com
- Category: dev
- Link status: ok
- Checked at: 2026-11-04
- Source: fetched
- License: description: original summary (BotPlayground)

## English

RegExr: online regular expression tester

## 中文

RegExr 正则表达式在线测试