Welcome to the official GitHub organization of Freva, the Free Evaluation System Framework — a powerful, modular, and open-source platform designed to unify data access, analysis tools, and reproducible workflows for Earth system science and beyond.

Freva is a community-driven software framework originally developed for the atmospheric and climate science communities. It provides:

• Unified data access across distributed storage systems and institutions
• A plugin system to integrate custom analysis tools
• Provenance tracking to ensure fully reproducible scientific workflows
• Multiple interfaces: Command-line, REST API, and Web UI
• Support for HPC environments, Docker/Podman, and Kubernetes

If you want to try out Freva locally, install our deployment tool and spin up an instance with just a few commands:

pip install freva-deployment
deploy-freva cmd --local

📖 Full instructions in the Freva Deployment Documentation

Freva is used by major research institutions and data centres including:

• DKRZ – German Climate Computing Center
• MPI-M – Max Planck Institute for Meteorology
• JSC – Jülich Supercomputing Centre
• Free Uni Berlin – Meteorology Department
• German Weather Service
• Many more

We welcome contributors from all scientific domains! If you're interested in: -Developing a plugin

• Improving deployment or data access
• Translating documentation
• Fixing bugs or requesting features

Please check out our contribution guide.

For general inquiries, bug reports or ideas, feel free to open an issue or reach our help desk 👉 freva@dkrz.de