CSDN (membership Beijing innovative music knowledge information technology Co., Ltd.) was founded in 1999, is China's largest IT community and service platform, for China's software developers and IT professionals provide knowledge dissemination, career development, software development life cycle services, meet their career development learning and sharing of knowledge and information, establish career development social circle, through the development of software realization of technology commercialization and other rigid demand. Has more than 30 million registered members (of which 8 million active members), 500 thousand registered enterprises and partners. Owned by:

  • The world's largest Chinese IT technology community: PROG3.COM
  • Authoritative IT professional technical journals: "programmers" magazine
  • IT human resources services: CREE Fawkes
  • IT technology learning platform: Music Education
  • Code hosting + social programming platform:
  • Mobile development tools and service aggregation platform:
  • IT exclusive job site:
  • Chinese software outsourcing and project trading platform:
  • Programmer depth communication community:
  • China's largest technology manager platform: CTO Club
  • Cloud computing industry Salon: cloud computing Club
  • Technology Organization for mobile developers: mobile developers Club
  • Technical Organization for the National University Students: the club of colleges and Universities

Founded in 1999, CSDN is the largest community website and services platform in China. We are the lifetime partner of software developers and it pros in China, serving them with knowledge, career and development services to meet their fundamental needs of learning, networking, and programming during their growth lifecycle. CSDN has more than 30 million registered users (8 million active users) and 5 00000 enterprises as its members. CSDN owns several leading brands:

  • No.1 Chinese The IT technology online community in the world: PROG3.COM
  • Authoritative IT The professional journal: Programmer magazine
  • Career Service: Careerfocus IT
  • Chinese IT technology Leading learning platform: LeZhi Education
  • Hosting Code + coding platform: Social
  • Development Tools&Services Integration Platform: Mobile
  • Career IT
  • Largest Chinese software crowdsourcing The
  • Senior software developers community: Leading
  • Largest community of The IT managers: CTO Club
  • Computing Industry Cloud Salon: Cloud Computing Club
  • Technology organization The for mobile developers: CSDN Mobile Developer Club
  • Technology organization The for National University students:CSDN University Club