二级域名证书查询

https://crt.sh/

微信文章导出

https://github.com/jooooock/wechat-article-exporter

sql 方式查询云服务状态

https://steampipe.io/

文件分享工具

https://pairdrop.net/

自托管笔记工具

https://docs.karakeep.app/

网页内容抓取

https://github.com/jaypyles/Scraperr