1)在线生成证书请求
https://www.icewarp.com/support/online_help/3206.htm
2)在线文件共享
https://reep.io/ https://snapdrop.net/
3)在线画流程图
http://processon.com/ https://www.draw.io/ https://www.gliffy.com/ https://yiqixie.com
4)下载链接转换
http://www.torrent.org.cn/ http://tool.lu/urlconvert/
5)恶意软件博物馆
https://archive.org/details/malwaremuseum&tab=collection
6)解除百度云浏览器端对下载大文件的限制
http://www.cnblogs.com/aepkill/p/5515433.html
7)格式转换
http://cn.office-converter.com/
8)在线编译器
https://wandbox.org/permlink/7AbIQS19ZItMMRkb
9)源码
http://www.toutiao.com/a6468066261896004109/
参考:http://tool.lu/