whois21 is a simple and easy to use python package that lets you easily query whois information of a domain/IP.

输入一个域名，输出ICP备案所有关联域名

面向开发人员梳理的代码安全指南

xshell密码恢复工具，用于读取本地的.xsh文件并解密其中的密码。

公务员从入门到上岸，最佳程序员公考实践教程

Turn any PDF or image document into structured data for your AI. A powerful, lightweight OCR toolkit that bridges the gap between images/PDFs and LLMs. Supports 100+ languages.