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Project of the month: FusionDirectory

FusionDirectory is an Identity Management Solution (IAM). With FusionDirectory, you can manage delegation to different levels of staff on a daily basis while maintaining confidentiality and data security.FusionDirectory won the 2016 OW2 Best Project Market Award and the 2018 Community Award.

News and Events



We are happy to announce the opening of the Call for Presentations for OW2con'21 (deadline March 15). Please visit the conference website:



We are pleased to announce the winners of the 2020 OW2 Best Project Award Contest, in the three categories Technology, Market and Community. Congratulations to the winning teams : Lutece (Community Award), Melodic (Market Award), Knowage (Technology Award).  



We are happy to launch in cooperation with the Eclipse Foundation this new webinar series, introducing european software research projects that help shape the future of open source software and the IT industry. The next webinar takes place on March 4th at 4:00pm. Register now! 


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The OW2 community supports the recommendation of the French Parliamentary mission to set up a central open source competency center and offers to help by sharing its expertise.


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OW2 CEO Cedric Thomas co-signs op-ed in Le Monde with Stefane Fermigier and Prof. Roberto Di Cosmo in support of MP Eric Bothorel's recommendation to set up a specialized open source bureau for the French administration. 



We are happy to coordinate this year again the Dependency Management Devroom at FOSDEM, in collaboration with FASTEN project. The CFP is closed now, check out the final Devroom program! 


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

An absolutely friendly state of mind
What a great adventure for early ObjectWeb developers like me! What? 10 years old? OW2 is bigger... 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