World Health Organization: Coronavirus disease (COVID-19) advice for the public

Project of the month: ASM

ASM is an all purpose Java bytecode manipulation and analysis framework. ASM was first created in 2000, congrats for the continued success!

News and Events



Given the current evolution in the COVID-19 situation,  we unfortunately have to postpone our physical event on November 3rd. While we deeply regret this decision, we reaffirm our intention to offer in-person community events. We will not be switching to 100%  virtual! We look forward to the situation improving and hope to be able to set a new date as soon as possible.



OW2online'20 is a wrap! With over 300 participants, 35 presentations and speakers representing 13 nationalities, OW2con is, this year again, a true expression of the European open source ecosystem. Check out videos and slides of OW2online'20. 



We are back at SFScon this year with an OW2 conference track and as Community Partner. Many thanks for our colleagues from Bolzano for the invitation! 


How can you take part in the Community?

What is OW2

OW2 is an independent community dedicated to open source industry-grade enterprise computing infrastructure software, including middleware, application platforms and cloud computing technologies.

Why Join OW2

Make a stand, focus your open source efforts, help steer the community, increase your open source visibility, promote your projects, and join renowned industry leaders, SMEs, academics and individuals.

Free Infrastructure Software

OW2 hosts some one hundred open source projects spanning application platforms, components, middleware, cloudware and tools for the development, deployment and management of distributed and cloud applications.

Submit a Project

At OW2 it usually starts with an open source project. We provide resources, governance and help build awareness for your project. Checkout the project life cycle and fill in the submission form. Join the code base.

Quality and Trustworthiness

Enhance the quality and facilitate the market adoption of your project with the unique suite of tools freely accessible with Open-source Software Capability Assessment Radar (OSCAR) the OW2 quality program.


Check out the beta version of OW2 marketplace at EU-funded project AppHub. Stay tuned for future development and full opening of the marketplace to OW2 projects in 2017.

Download OW2 Software

Infrastructure Software, Application Platform, Middleware, Tools

A robust and active platform for collaboration and innovation
Inria is delighted to see how OW2 has developed over the years. Back in 2002, Inria was one of the... more

Collaborative Projects

Leveraging open source to foster collaborative innovation is a powerful strategy. OW2 is an experienced Open Source Software community for collaborative R&D projects. We provides community support and dissemination services and community building services to multinational open source collaborative projects and large collaborative R&D projects. In particular, OW2 has established itself as the reference dissemination and community platform for complex government-supported, open source-oriented projects.

They trust us