RegexMate

RegExp

Powerful Regex Testing Tool

RegEx Tool

Learn Regular Expressions!

RegEx+

Regex Tester & Flow Visualizer

websta$-learn html css and js

A good helper for learning web

Learn SQL for MySQL

SQL Language for MySQL

JSON Brace for Safari

Powerful JSON viewer

ShellHistory

Backup, organize and sync

ViRE – Regex You Can Read

Visual Regular Expressions

Giteer For Gitee（码云）- 国内开发者必备

Developer Tools

BLE Spy

Scriptable Bluetooth Smart