OpenCloud receives Blue Angel in the resource- and energy-efficient software category
PRESS RELEASE
Berlin, 14 October 2025 - OpenCloud, the powerful open source platform for file management, file sharing and digital collaboration, has been awarded the Blue Angel ecolabel. The certification confirms the strengths of OpenCloud: a lean, modern code without additional databases enables a resource-saving server setup and energy-efficient data processing. At the same time, OpenCloud fulfils important criteria for transparency and fairness, for example through open standards, comprehensive documentation, the absence of tracking and moderate hardware requirements that also enable the use of older systems.
Measurable energy efficiency in cloud operation
The certification is based on objective measurements under real operating conditions. RAL gGmbH, the independent certification body in the Blue Angel eco-label award procedure, was responsible for the test. OpenCloud impressed with its economical use of resources during operation and synchronisation as well as transparent consumption information for administrators. The modular architecture enables only required functions to be activated and hardware lifecycles to be extended; older systems are also fully supported.
Sustainability through open standards
The open interfaces and complete data portability of OpenCloud prevent vendor lock-ins and create the basis for sustainable IT strategies. Updates do not require new hardware and longer product cycles conserve resources.
"For us, open source not only means transparency, but also responsibility towards users, the environment and society. The Blue Angel award confirms our claim: innovation, sustainability and digital freedom belong together," explains Klaas Freitag, CTO of OpenCloud.
Orientation for sustainable IT procurement
The Blue Angel for software is based on defined, measurable criteria for energy- and resource-saving IT solutions. The certification provides companies and the public sector with a reliable basis for sustainable IT procurement decisions. Especially with growing data volumes and rising energy costs, this award is also an economically relevant decision criterion.
The preparation for certification was carried out in cooperation with Green Coding Solutions GmbH.
About OpenCloud
OpenCloud is the powerful open source solution for file management, file sharing and content collaboration that fulfils the highest demands in terms of user-friendliness, performance, stability and scalability. The software can be operated flexibly on-premise or securely procured via partners. With intuitive operation, seamless integration, person-independent file management ("Spaces") and secure versioning, OpenCloud is ideal for the public sector, educational institutions, research and large companies and providers.
Together with OpenTalk and mailbox, OpenCloud is one of the three strong pillars of the Heinlein Group, which provides secure and digitally sovereign IT infrastructures for Europe.
Further information can be found at https://opencloud.eu
About the Heinlein Group
The Heinlein Group, based in Berlin, stands for digital sovereignty, data protection and open source. It unites the Heinlein Support, mailbox, OpenTalk and OpenCloud brands under its umbrella, which offer many years of expertise in open standards, personal advice and innovative solutions for secure communication and independent IT infrastructure. Whether email services, video conferencing or file management - the Heinlein Group's products are GDPR-compliant, flexible to use and technically state of the art. Together with the business units Hosting, Consulting and the Heinlein Academy, the Heinlein Group covers the entire spectrum for the development and operation of sovereign and resilient IT infrastructures.
Companies, public institutions, educational establishments and providers have been relying on the Heinlein Group's expertise for over 30 years. With its services, it creates maximum control and transparency, strengthens digital independence and promotes sustainable IT development.
Contact:
OpenCloud GmbH
Ivonne Heinlein
Phone: +49 30 40 50 51 - 48
Email: presse@opencloud.eu
Schwartz Public Relations
Lara Neidhart
Phone: +49 (0)89 211 871 - 64
Email: opencloud@schwartzpr.de
