1. Aliyun crowdsourcing platform: generally Internet outsourcing is the majority, official website: https://zhongbao.aliyun.com/projects?typePid=&typeIndex=0&status=&statusIndex=0&pageSize=10&pageIndex=1
2. Programmer Inn: Official website: https://job.proginn.com/job/
3. Open source crowdsourcing: official website: https://zb.oschina.net/projects/list.html
4. Yuanjisong: Official website: https://www.yuanjisong.com/
5. Code Market: It is also mostly Internet outsourcing, official website: https://codemart.com/
6. Zhu Bajie: A deposit is required. Official website: https://deyang.zbj.com/sem/index?pmcode=128434637&utm_source=baidu&utm_medium=SEM&sdclkid=AL2615-G1526xrDiALq
7. Clouderwork: official website: https://www.clouderwork.com/
8. Makekbang: official website: https://www.make8.com/index
9. Development treasure: official website: https://www.rdplat.com/
10 Jiefang: Official website: https://www.jfh.com/wf3.html?sem_fr=tuibaidu&sem_source=bd888-pc&sem_plan=%E5%93%81%E7%89%8C%E8%AF%8D-pc-% E7%B2%BE%E7%A1%AE-all&sem_unit=%E5%93%81%E7%89%8C%E8%AF%8D-%E8%A7%A3%E6%94%BE%E5%8F% B7&sem_word=%E8%A7%A3%E6%94%BE%E5%8F%B7&f=cl1_1_1&bd_vid=10823328221854242301