Projects from Germany

Open source REST API for scalable geospatial data processing used in European environmental monitoring.

Java framework for OGC web service implementations used in European geospatial data infrastructure.

Pure Python ZUGFeRD and Factur-X implementation for creating EN 16931 e-invoices.

PHP library to generate and read EN 16931 structured XML with UBL and CII syntaxes.

Open source, highly portable microscopic traffic simulation package used in EU transport research.

Implementation of the European eIDAS middleware provided under the EUPL 1.2 by Governikus.

EBICS client for Ruby supporting secure European banking communication.

Community diagnostic and performance metrics tool for evaluating Earth system models in European climate research.

ROS 2 support for ETSI ITS messages enabling V2X communication.

EU AI Act compliance tool for risk classification and bias testing.

Curated framework of open source platform components for EU smart applications using NGSI-LD.

Data Space Connector following DSBA Technical Convergence recommendations for EU data spaces.

Step-by-step tutorials for FIWARE NGSI-LD smart applications.

FlowDrop is a visual workflow editor component built with Svelte 5 and xyflow/svelte for embedding drag-and-drop flow builders into your own applications. You control the backend and infrastructure end to end: workflows run on your own servers with your own data and security rules, with no vendor lock-in or data leaving your systems.

Forgejo is a self-hosted, lightweight Git forge focused on community ownership and ethical software practices. Maintained by Codeberg e.V. in Berlin, it provides a full GitHub alternative with repositories, issues, pull requests, and CI/CD runnable on minimal hardware.

Freedom of Information portal framework deployed across European countries for government transparency requests.

Haystack is an open-source LLM orchestration framework for building production-ready AI applications such as RAG pipelines, semantic search, and question answering systems. Developed by deepset GmbH in Berlin, it provides a modular pipeline-based architecture supporting all major LLM providers.

hetzner-k3s is a CLI tool that creates production-ready Kubernetes clusters on Hetzner Cloud in minutes, not hours. No Terraform to learn, no management cluster required, no third-party access to your credentials.

Tracks how Members of the European Parliament vote in plenary sessions.

Java library for IBAN and BIC generation and validation.

SCADA framework for the European X-Ray Free-Electron Laser facility.

KeePassXC is a free, open-source, cross-platform password manager built as a community fork of KeePassX. It stores credentials in an AES-256 encrypted local database and supports hardware security keys (YubiKey, OnlyKey), browser integration, TOTP, and SSH agent. A privacy-first alternative to cloud-based password managers.

Extract and parse legal references from European legal documents.

LibreOffice is a free, open source and private office suite, used by millions of people around the world and the successor to OpenOffice. It is made by a worldwide community and backed by a non-profit organisation (The Document Foundation).

Mastodon is a free, open-source, decentralized social network built on the ActivityPub protocol. Self-hostable and federated, it allows anyone to run their own server while communicating across the Fediverse. Developed by Mastodon gGmbH in Berlin, it prioritizes user privacy, data portability, and freedom from algorithmic manipulation.

Multimodal travel information system providing routing, geocoding, and map tiles across European transit networks.

Nextcloud is an open-source self-hosted productivity platform for file sync, sharing, and collaboration. Built by Nextcloud GmbH in Stuttgart, it combines cloud storage with integrated apps for calendar, contacts, mail, video calls, and office documents a privacy-first alternative to proprietary cloud services.

Framework for integrating FollowTheMoney entity data from multiple sources for EU AML compliance.

Energy system modelling and optimisation framework widely used in European energy research.

Open source platform for managing Digital Product Passports in compliance with EU regulations.

Ontology for energy system modelling and analysis in the European research context.

Web platform providing an interface to open energy data and the Open Energy Ontology for European research.

Open source platform for publishing and accessing European legal data.

OpenProject is an open-source project management and team collaboration platform made in Berlin, Germany. It supports classical and agile workflows, Gantt charts, time tracking, Scrum/Kanban boards, wikis, and budgeting. GPL-3.0 licensed and self-hostable, used by public administrations and enterprises across Europe.

Open database of international sanctions data, persons of interest and politically exposed persons, including EU sanctions lists.

Context Broker and CEF building block for context data management supporting NGSI-LD and NGSI-v2.

ownCloud Infinite Scale (oCIS) is the modern, cloud-native rewrite of ownCloud built by ownCloud GmbH in Nuremberg. Written in Go with a microservices architecture, it provides enterprise-grade file sync, sharing, and collaboration with horizontal scalability and full data sovereignty.

Python parser for XBRL and iXBRL files used in EU ESEF financial reporting.

Qdrant is a high-performance, open-source vector similarity search engine and database built in Rust by Qdrant Solutions GmbH in Berlin. It enables fast nearest-neighbor search over dense and sparse vectors with filtering, making it core infrastructure for AI, recommendation systems, and semantic search.

Rasa is an open-source framework for building production-grade conversational AI assistants, developed by Rasa Technologies GmbH in Berlin. It provides NLU, dialogue management, and integration tools to deploy custom chatbots and voice assistants without relying on proprietary cloud AI services.

Python library for IBAN and BIC parsing, validation and generation.

Governance and collaboration portal for participants in EU Data Spaces.

Stackable is an open-source, modular data platform for Kubernetes that enables modern data architectures including warehouses, lakehouses, and streaming pipelines. Built in Germany with a focus on data sovereignty, it provides operators for Apache Kafka, Spark, NiFi, Superset, and more, making enterprise data stacks fully self-hostable.

Browser-based tool to visualize public transport journeys across European networks.

Ruby library for validating European VAT numbers with VIES lookup.

Entity matching and search API for OpenSanctions data, supporting EU sanctions screening and KYC workflows.

C library for creating and reading ZUGFeRD and Factur-X e-invoices.

PHP library for ZUGFeRD, XRechnung, and Factur-X e-invoicing formats.