Here you can find all projects of the Prototype Fund and filter them by round or focus. The funded projects always range between Civic Tech, Data Literacy, Security and Software Infrastructure. All projects we fund must be released under an open source license upon completion. Thus far the Prototype Fund has funded 272 projects.

Topics and Technologies

Data Visualization
Group/Self Organisation
Software Infrastructure



Runden Timeline
Runden Timeline


As you know, one of the criteria for our funding projects is that they develop open source software and that they publish their source codes after the funding period ends. We believe that ideas that are shared offer new starting points for projects and cooperation. We also want to ensure that funded projects can be maintained and developed in the future.

To make it easy for you as developers to find these sources, we’ve collected them on our GitHub account.


We help to better understand and design algorithmic systems.

Andreas Dewes, Katherine Jarmul


We help to document the own menstrual cycle locally and encrypted.

Marie Kochsiek, Tina Baumann, Julia Friesel

Dystonse - probability-based public transport route search

We enhance people’ s trust in public transport.

Kirstin Rohwer, Lena Schimmel


We visualize how third-party online tracking works in real-time.

Princiya Sequeira

Portable Firewall for QubesOS

We develop a resource-saving firewall for QubesOS.

Stefanie Schirmer


We are an open source ticket shop with no major hardware and software hurdles.

Raphael Michel

Real-life Reproducible Builds

We make the supply chains of software production more secure.

Holger 'h01ger' Levsen

Share the Crops

We connect people who are active in community-supported agriculture.

Simon Jockers, Maria Dolecek, Charis Braun

Sign Dict

We are an interactive reference book for sign language.

Bodo Tasche


We bring more female speakers to the panels of this world.

Maren Heltsche, Tyranja

Syrian Archive

We collect and verify eyewitness reports from conflict areas centrally on our platform.

Hadi Al Khatib, Jeff Deutch, Nikolas Para

Tatort Rechts

We show how many violent acts of right-wing extremism are committed in Germany.

Anna Neifer, Johannes Filter


We use Machine Learning to facilitate the capture of text documents.

Natalie Widmann


We are a software for voice training for trans people.

Yvonne Reinhardt, Saskia Gennrich

“Data Analyst”- Mode for openSenseMap

We make data analysis accessible to everyone.

Umut Tas


We bridge language barriers for more accessibility in theatres and operas.

Kristian Kamph, , Kristian Kamph, Philip Steimel, Ilja Fontaine


We build a personalised noise filter based on Machine Learning.

Peggy Sylopp, Aislyn Rose

A different Election-o-Meter

We are a Wahl-O-Mat based on the previous behaviour of a party.

Vincent Ahrend

A thousand channels - a queer platform

We are building a digital platform for queer stories in the urban space.

Thomas Böker, Dafne Jaramillo, Ulf Treger

Accesible and collaborative work with Emacspeak

We build an auditive client for video and audio conferences.

Michael Volz, Niclas Schmidt


We help people with visual impairments to greater mobility.

ACCID - Automated Clustering of Conflict Incident Data

We are developing an automated tool for clustering digital content.

Hadi al Khatib, Jeff Deutch, Nikolas Para


We create a map to locate public sport facilities.

AI to detect vulgar language

We help to detect vulgar language.

Nicolas Kuhaupt


We simplify operations for emergency services.

Andreas Brain


We record the capacity utilisation of shops and display it to customers.

An App for Data

We simplify your data protection requests.

Benjamin Altpeter, Lorenz Sieben

Annotate & Chill

We show from which sources information has been obtained.

Simon Wörpel


We are a graphical survey tool for perceived truths.

David Goldwich, Tin Fischer

arso – Decentralised archives for community media

We make digital content permanently and decentrally accessible.

Franz Heinzmann , Laura Rebekka Rosengarten, Matthias Sievers, Alex Nieß, Moritz Brock-Wenzek


We build a desktop software for audio editing of the spoken word.

Karl Engelhardt, Jaro Habiger

audilu - Audio Descriptions made simple

An easy way to create audio descriptions.

Automated Hardware-Test-System for OpenWrt

We enable the automated and structured testing of various devices.

Alexander "lynxis"Couzens

Automated Open Data City Census

We show how transparent and open Germany’s cities are.

Mila Frerichs


We improve the operation of BigBlueButton clusters.

Annika Hannig

BBND - Der Big Brother Newsletter Detector

We control the opening- and click-tracker in your newsletters.

Merlin Axel Rutz, Leonie Meder, Andi Rüther, Rainer Halbmann


We help you to find Bias in NLP-Anwendung.

Stina Lohmüller, Tobias Sterbak


We make digital infrastructure production more transparent and accountable.

Bitmask enhanced VPN for Android

We offer a simple VPN client with all important security features.

Richard Johannes


We help users to create their own encrypted social networks.

Julia Friesel, Manuela Blechschmidt

Blue Light Planner

We simplify the planning of emergency doctors and ambulances.

Christian Strunz, Adrian Stabiszewski

Boundary Agents

We make BIPOC history of the European Middle Ages visible.

Anne Kuhlmann-Smirnov, Ilya Smirnov

Boxtribute - API for database access and optimized exchange of relief goods

We provide dignified care for those in need in emergency situations.

Philipp Metzner

Boxtribute 2.0

We are helping to distribute relief supplies fair and respectfully.

Briar Desktop

We develop a platform independent desktop version for Briar.

Nico Alt, Sebastian Kürten, Mo Zielinski, Mikolai Gütschow

Briar Mailbox

We are an encrypted messenger app that stores only the messages on the users’ devices.

Julian Dehm, Benedikt Wieder

Bright Sky

We make weather data easier to access.

Jakob de Maeyer


We acesibly provide weather data from the german metereological service.


We are a platform for the discussion of specific political projects.

Magnus Rembold


We enable dynamic conversation processes in the digital space.

Anke Riemer, , Anke Riemer, Kai Berthold, David Grieshammer

Chatmosphere 2.0: Scaling

We extend Chatmosphere for large groups and make it more stable.

Anke Riemer, David Grieshammer, Christian Ivanis


We are building a decentralized authentication system for minors.


Dominik George

CIN - An Open source cash register system compatible with KassenSichV 2020

We build your open source POS system with integrated technical security.

Lars Böttcher

Civil Maritime Rescue Coordination Center

We simplify cooperation for people involved in sea rescue.

Lea Reisner, Jonas Wiegert, Nicolas Zemke, Mareike Ippen


We are the open, machine-readable hospital database.

Ulf Köther, Malte Schubert, Steven Rentzsch, Philipp Molitor

Clinical Capacity Management

We provide efficient and forward-looking planning of intensive care capacities.

Close lid to encrypt

We encrypt Linux hard disks in sleep mode.

Tim, Jonas


We respond to the insecurity of citizens with AI-supported information hotlines.

Cobox - building blocks for a cooperative cloud

We provide secure data storage on a cooperative basis.

Mooness Davarian, Gregory Jones


We enable more people to participate in financial decisions.

Jessy-Kate Schingler, Francesca Pick, Kate Beecroft, Michael Arnoldus, Juliana Lopker


We offer a barrier-free source code editor.

Adrian Heine, Marijn Haverbeke


We ensure the supply of food to endangered population groups.


Wir bauen eine Kollaborationsplattform für den wissenschaftlichen Austausch über Publikationen zum Coronavirus.


We network the carers and clients of child and youth services with each other.

Common Syllabi

We make curricula accessible.

Pierre Depaz, Tobias Schmidt

Commons Booking

We facilitate the sharing process of common used items.

Florian Egermann


We offer a secure and open chat server.

Timo Kösters


We integrate refugees into their neighbourhood.

Christian Rotzoll, Patrick Pachur

cooarchi: community oriented archive interface

We create collaborative archives for the cultural sector.

Jonathan Meyer, Kathia von Roth, Michael Scholl, Lukas Fuchsgruber, Luna Nane


We reduce the workload of nursing staff and help patients to become more independent.

Michael Kamphausen


We respond to the insecurity of citizens with AI-supported information hotlines.

COVER-REST – Find features, avoid stress

We automate the finding of features in the source code.

Thorsten Behrens


Wir denken staatliche Kommunikation neu und stellen verifizierte Informationen überall im Netz bereit.


We are an activist wiki.

crabgrass dev team


We make filter bubbles visible.

Sebastian Meier, Daniel Lommes


We use virtual reality to make climate change tangible for students.

Julian Fürstenau, Robert Greve, Michael Pogorzhelskiy,

Cypherlock – Coercion Resistant Storage

We help investigative journalists to encrypt their data in emergency situations.

Frank Rieger

Dark Crystal Social Key Recovery System

We encrypt data using social networks.

Gregory Jones, Mooness Davarian


We prepare statistical data from the federal state offices in a clear and concise manner.

Simon Jockers, Simon Wörpel


We educate young people about the protection of personal data.

Nastasja Krohe, Annemarie Hobach, Julian Dehm

DDD: Digitize German Documents

We extract continuous text from PDFs.

Johannes Filter


We help citizens to stay informed about current regulations concerning COVID-19. - infrastructure for representation of civil society´s interests

We enable digital participation procedures for citizens’ initiatives.

Maria Haberer, Boris Hekele, Andreas Hellwig


We ensure the anonymity of devices in public networks.



We relieve cancer patients with intuitive and modular cancer management.

Christian Schulz, , , , , Christian Schulz, Christoph Speier, Sebastian Schroth, Jonas Jung, Sebastian Schneider, Dennise Cepeda

Digital Evidence Toolkit

We legitimize and facilitate digital evidence.

Basile Simon

Digital Makerspace

We provide free digital tools for everyone.

André Kless

Digitales Wartezimmer UX

We offer COVID-19 patients a central, digital point of contact – from suspected cases to testing, quarantine and recovery.

Dingsda - ze internet of dings

We are a network for sharing things.

Jan Philip Steimel

Direct Democracy Digital

We help to organise referendums.

Laura Brämswig, Joy Ponader, Timur Celikel, Valentin Schagerl, Julia Baumhauer

Diversity Tickets

We ensure more diversity at technology conferences.

Jessica Grzanna, Candela Jiménez Girón

doc2data - simplifying document processing through ML

We speed up administrative processes with artificial intelligence.

Sergej Levich


We convert suggestions for improvement of online tools into specific tasks.

Andreas Pittrich

Documentation plattform for open hardware projects

We built a documentationa plattdorm for open source hardware.

Dietrich Jäger, Andreas Plank

Documents for Democracy

We enable collaborative work with document software from different providers.

Yasmin Klemmt, Svante Schubert, Lars Behrmann

We are the central database for donation centers.

Bhushan Lodha, Melina Rüttimann


We can inform you about how many people are really ill with COVID-19.

E-Mail Account-Administration with Self-Service

We help users to manage their encrypted email accounts themselves.


Easy-to-use configuration tool for Qubes OS

We enable an easy configuration of Qubes OS.


We enable streaming, recording and export for open source video solutions.

Hong Phuc Dang, Nangialei Safi, Mario Behling

Election Data Helper

We prepare open source election data in an exciting and creative way.

Jan Kus, Tatjana Lajendäcker

Emergency Warning System for Open Source Mobile Communication

We democratise the availability of mobile phone warning systems.

Harald Welte

Emission API

We create access to emission data for a broad public.

Timo Brockmeier, Tina J. Rosemann, Hendrik Kerssen, Lars Kiesow, Sven Haardieck, Simon Kerssen


We provide an overview of various scenarios for the energy revolution.

Jonas Hörsch

ESP Independent Solar Energy Mesh Node Firmware

We lower the entrance threshold for a solar-powered communication structure.

Elektra Wagenrad

Ethidat - the CO2 database

We show how much CO2 businesses produce.

Lars Wissler, Elias Philipp


We provide an interactive map showing which municipality receives how much money from the EU.

Emoke Bada, Balazs Bonis, Balazs Krich


We show how COVID-19 measures affect the activities in public space.

Exodus 3.0 - Interplanetary informationsearch

We make search engines safe and transparent.

Yoel Zimmermann, Edward Zimmermann

Explain Corona4Kids

We make the COVID 19 pandemic comprehensible to children.

Extension of a no-code plattform for humanitarian crisis reaction

We are simplifying logistic processes for humanitarian aid.

Daniel Spaude, Ewa Flis

Extension of Boxtribute to support Transient Refugees

We simplify mobile aid distribution to Transient Refugees.

Daniel Spaude, Ewa Flis

Eye Skills

We treat strabismus with the help of a mobile phone game.

Thomas Senior

Eye Skills at Home

We treat strabismus with the help of virtual reality.

Thomas Senior


We make eye tracking useable for people with disabilities.

Hannah Ricksgers, Jana Tempes, Markus Hörmann, Maximilian Besold


We simplify utilisation management for open workshops.

Kai Kriegel, Joseph Langosch, Jannis Rieger, Gregor Reitzenstein, Tasso Mulzer

Face the Facts

We make all important information about politicians accessible directly on the election poster via cell phone camera.

Victor Bellu, Olliver Köditz, Richard Krümmel, Takahiro Mitsui

Facts for Friends

We help to refute false information about COVID-19 quickly and effectively.


We identify human rights violations in the production of electrical appliances.

Andreas Fritsch, Sebastian Beschke

Fake Files

We help to expose recurring false reports quickly.

Karolin Schwarz, Simon Wörpel


We help document femicides in Germany.

Lisa Passing

Festival Grid

We help to make festivals climate-neutral.

Michael Zöller

Filtering Hate Speech

We inform users about Machine Learning without hate comments.

Johannes Filter - Find and Book Black Asian Minority Ethnic (BAME) Owned Businesses

We facilitate the search for BAME Businesses.

Peter Akpotosu-Nartey, Bhushan Lodha


We network deaf, hard of hearing and hearing people.

Aniella Tiedje, Katharina Brauner, Tim Lindenau, Robin Naumann, Clara Simon


We offer the possibility to record online interviews in cinema quality in the browser.

Volker Grassmuck, Donald Harvey, Jamie King


We make access to information on the condition and planning of the Berlin cycling infrastructure easily accessible.

Boris Hekele, Heiko Rintelen


We create a federal fleamarket application.

Follow the Grant

We store on our website which doctors and scientists have received funds from companies.

Elena Erdmann, Hristio Boytchev, Karl Scholze, Simon Wörpel

Food Rescue App

We show how Iong the shelf life of food really is.

Matthias Ansorg, Micha Gattinger


We connect and coordinate food savers.

Raphael Wintrich

Forest Fire App Kit

We help fire departments to tackle forest fires more effectively.

Mo Zielinski, Sebastian Kürten

Forms Wizard

We simplify creating formulars and collecting data.

Johannes Lötzsch, Sebastian Tilsch, Jakob Stege, Samira Steinmayer


We help hosts to organize community events more easily.

Mario Manno


We improve the discussion capabilities of web videos.

Joscha Jäger

Freigeist – digital prostheses for cognitive limitations

We develop digital prostheses for increased participation of people with cognitive impairments in their daily work.

Michael Thieke


We enable digital collaboration – entirely without cloud infrastructure.

Eileen Wagner, Vincent Ahrend

Further developement of foodsoft

We improve Foodsoft and relief Foodcoops’ work.

Future City Projects

We help to implement self-initiated city projects.

Norbert Rost, Jakob Schumann

Gemeinde Cockpit - Dashboard für Entscheider*innen

We are an intuitive platform for the digitalization of church life.


We simplify gender-neutral writin.

Karl Engelhardt, Charlotte Friedrich, Felix Kattner, Philipp Müller


We depict the development of gentrification in an understandable way.

Melanie Thewlis


We enable the collaborative collection and processing of geographical data.

Moritz Duchêne


We enable the addition of new geodata in OpenStreetMap.

Adrian Stabiszewski


We facilitate the organisation of spontaneous helpers.

Sarah Stoffels, Nils Witt, Thomas Mielke, Alexander Blum, Angelika Ehrlich

get it!

We support local shops during the crisis.

gget - genomic database always at your hands

We simplify and optimise the retrieval of information from big genomic databases.

Laura Lübbert

Gitea in the Fediverse

We network self-hosted Gitea instances..

Janis Estelmann

Global Agriculture Information Platform (GAIPA)

We prepare information on agriculture for small farmers in developing countries in an understandable way.

Jan Schwabe, Toni Hassenmeier

GNOME Shell Mobile

We improve GNOME for mobile devices.

Tobias Bernard, Jonas Dreßler


We vectorise OpenStreetMap maps.

Thomas Skowron


We help to make WordPress projects more sustainable.

Christian Neumann

Growing Futures

We enable community-supported agriculture to plan cultivation in line with their needs.

Andreas Gmeiner, Nic Dürr


We help to send data protection queries to website operators.

Benedikt Kaffai


We provide entry points into the political system.

Norbert Rost, Jakob Schumann, Philipp Munzert, Tina Hoffmann, Pauline Grahlmann, Frieder Jacobi

Hands-Free Phone

We make telephone calls accessible.


We give those affected by online hate speech a tool to defend themselves.


We support the onboarding and theoretical training of healthcare personnel.


We inform people about construction projects in their neighborhoods.

Bodo Tasche


We make votes in the European Parliament transparent.

Till Prochaska, Linus Hagemann


We are a search engine for open source code.

Jan Hartmann, Henrik Eliasson

HundredEyes - a tool for trust-building measures

We create new perspectives for local journalism.

Astrid Csuraji, Jakob Vicari

I am here! The attendency list!

We help you to record student attendencies.

Michael Merz

ibeufin – Freie API und Sandbox für das europäische Finanzsystem

We enable smaller companies to develop and test financial software.

Florian Dold, Marcello Stanisci


We protect the identity of citizens.

Sina Beckstein, Julian Rösner

IFC-HIVE - Open BIM Common Data Environment

We create a cloud based storage solution for integrated construction data.


We refer COVID-19 recoveries to institutions that need support.

Independent Solar Energy Mesh System (ISEMS)

We offer users the opportunity to set up their own communication network independent of the power grid.

Elektra Wagenrad, Monic Meisel, Knut Hühne

Infrastructure for Cashless Payments without Surveillance

We enable cashless transactions while protecting your privacy.

Florian Dold

JavaScript XMPP Client

We are an open and federated video and audio conferencing tool.

Klaus Herberth

JMap for K9 Mail

We integrate jmap into K-9 mail.


joureka - With more ease from interview to article

We make the work of journalists easier.

Felix Mertineit, Ana-Maria Tomi


We are a digital platform that brings companies together quickly and easily for temporary staff exchanges.


We enable the secure storage of health data in the Nextcloud.

Aysel Afsar, Evren Ozkan, Armin Moehrle, Sanya Glisic

LabHive – die digitale Plattform für ein starkes Diagnostiknetzwerk

We are joining forces for more SARS-CoV-2 tests.

Law & Orga

We support Refugee Law Clinics so that they can offer even better advice.

Dominik Walser

Law in progress

We make legislative changes transparent.

Tobias Sterbak, Noa Tamir

Linking Parliamentary Debates

We make parlamentarian debates transparent and digitally accessible.

Joscha Jäger

List OCR for the Arolsen Archives

Wir vereinfachen die Bearbeitung von Listendokumenten für die Arolsen Archives.

Thomas Werkmeister

Local Emission Framework

We help counties, cities and municipalities to communicate their climate strategies efficiently.

Frederik Timme, Niklas Stein, Florian Edelkötter, Tino Rohmund

Luna LMS – easy multimodal learning

We make digital learning accessible.


We simplify the learning of job-related vocabulary.

Lukas Böhm, Julia Götz, Raphael Hepperle, Ulrike Hösl, Daniel Kehne, Stefanie Metzger, Sven Seeberg, Oliver Sieberling, Julia Wohlhüter


We support neighbourhood help organisations in reaching people without internet access.


We promote inclusive and non-discriminatory translations.

Timur Celikel, Anna von Rath, Lucy Gasser, Kolja Lange


We show the potential for manipulation of automated image recognition systems.

Katharina Rasch

master_me - better sound for streaming and conferences

We optimize the sound for open streaming infrastructures.

Klaus Scheuermann

Mastodon: Mobile Apps and E2E Encryption

We are developing an Android app for Mastodon.

Eugen Rochko

Mat-o-Wahl - a simple Wahl-o-Mat for large and small elections

We inform voters in a playful, fast and simple way.

Matthias Steudtner


We facilitate the deployment of trainees in healthcare facilities.

MedAbb - medical abortion accompany

We create a mobile App that accompanies patients during their medical termination of unwanted pregnancies or miscarriages.

Leonie Kühn, Jana Maeffert, Dani Nikitenko, Lena Schuster

Media Uncovered

We analyze the language usage of news portals for political and ideological tendencies.

Natalie Widmann, Theo van den Boogart

We make data collected by fine dust measuring devices visible.

Timo Lundelius, Marcel Beledin, Lukas Mocek, Jan A. Lutz

We are an intuitive platform for the digitalization of church life.


We enable secure, self-managed digital legacy for all.

Konrad Mohrfeldt, Robert, Steffen


We provide low-threshold information and personalised support services for mental health promotion and mental health problems.


We enable the use of Android apps without the integration of Google Play services.

Marvin Wißfeld


We provide a data-based, detailed overview of the development of rent rates.

Jakob Simmer


We offer tenants an online tool to enforce the cap on rent increases.

Vincent Ahrend


We turn the development of AI technologies into a participatory process.

Jie Liang Lin

ML Tooling

We make machine learning accessible to a larger audience.

Lukas Masuch, Benjamin Räthlein, Jan Kalkan

ML-based Translation for LibreOffice Writer

We develop a locally executable translation service based on AI.

Thomas Viehmann

MLIftW - Music Licencing Infrastructure for the Web

We are building a fairer and more flexible music licensing system.

Alexander Blum, Thomas Mielke, Christoph Scheid, Udo Spallek, Sarah Stoffels

More collaborative apps and reach for OpenAppStack

We enable organizations to host their online applications in a decentralized and make them available securely.

Mark Swillus, Varac

Multimodal routing engine for wheelchair users and bike messengers

We provide a personalized and barrier-free navigation.

Johannes Lötzsch, Sebastian Tilsch, Neda Sultova, Joerg Zeltner, Christiane Lisa Iden

My Rights

We make verdicts accessible and understandable.

Viraaj Akuthota, Ilka Bartsch, Max Eckert, Julian Karth


We make human rights violation data accessible securely.

Hadi Al Khatib, Giovanni Civardi, Christo Buschek

Neue Digitale Patientenverfügung: Transparent und interoperabel

We create a privacy-compliant, digital patient directive.

Armin Biller, Nikola Biller-Adorna, Toben Kreuder, Marius Jesukulke

Nextcloud Collectives

We simplify collaboration for social movements in the cloud.

Azul, Jonas

Nuclear Waste Treasure Map

We search online together with the users for suitable final storage locations for nuclear waste.

Solveig Schröder, Bernd Marticke, Henrik Eliasson


We protect public infrastructure from hacking attacks.

Alexander Wamack

Oh My Git!

We create a playful approach to learning Git.

blinry, bleeptrack


We distribute the load of the Tor network better among individual relays and thus help to make it accessible to more people.


Open Android Installer

We simplify the installation of free android operating systems.

Open Audio Search

We make Speech2Text available for many users.

Sid Moreira da Silva, Franz Heinzmann, Joseline Veit, Henning Schumann

Open Case

We create a tool for real time intervention and documentation of cases of human rights violation.

Luca Obertüfer, Malte Löhlein, Nicolas Welti, Tayeb Bayri, Mahmoumd Tamaa

Open Legal Tech

We support people in their communication with administration and authorities.

Magdalena Noffke

Open Metro Maps

We help users to produce free-to-use map material about public transport.

Sebastian Kürten

Open ML kit for Android

We are an ML/AI library with open models for Android systems.

Katharina Rasch

Open Needs DB

We build (your) database for secure software development.

Daniel Woste, Marco Heinemann

Open Public Transport

We show you how well you can get around by public transport.

Florian Schwanz, Florian Lorisch, Leon Marvin Schlote, Michael Schwabe

Open Research on COVID-19

We provide a simple data retrieval model for scientific publications around Covid-19.

Open Source Council Information System

We make information on municipal politics easily accessible.

Konstantin Schütze, Tobias Hößl

Open Source Push Service for Android Apps

We offer push news for providers outside the large, proprietary app stores.

Marcus Hoffmann


We mediate food surpluses to those in need.


We develop an open construction platform.

Simon Deeg, Andreas Picker


We enable you to artfully recycle old raw materials.

Simon Deeg, Andreas Picker

OPENLEGALDATA.IO – Open Legal Data Platform

We are making jurisdiction more transparent.

Saskia Friederike Ostendorff, Till Blume, Jonas Langhabel, Malte Schwarzer


We implement the MLS library for secure communication.

Raphael Robert

OpenPIMS: No More Cookie-Banner

We end the cookie-banner flooding.

Stefan Böck


We remove personal data from texts.

Pascal Berrang, Jonas Langhabel, Malte Ostendorff, Saskia Ostendorff


We show which companies are subject to international sanctions.

Friedrich Lindenberg

We democratize satellite data.

Niklas Jordan

Operation simulator for civil protection executives

We are developing a low-threshold exercise facility for population protection.

Klaus Herberth

We use a pandemic simulator to show how the COVID-19 curve can be influenced and optimized.

PAID - Care Billing in Germany

We are building a program library for the billing of care services.

Michael Kamphausen, Alexander Schmidtpeter, Tobias Zwick

Pallia – Gemeinsam Gehen

We enable digital terminal care in times of social distancing.


Content detection at your fingertips.


We are building an EU-compatible software for digital invoices.

Svante Schubert, Yasmin Klemmt

Parking space data from OpenStreetMap -  processing and visualization 

We collect and visualize parking space data.

Lars Lingner, Axel Seidel, Tobias Jordans


We simplify organisation and cooperation for city garden projects.

Johannes Lötzsch, Sebastian Tilsch, Claudia Rüdiger, Stephanie Hofmann, Philipp Michael


We offer a secure photo library with image recognition.

Robert Buchholz

Platform for Transcriptions

We transcribe voice recordings on our website.

Matthias Hannich


We enable groups to better organize their digital meetings.

Azul, Jonas

Pluggable transports for LEAP: self-hosted VPN

We offer an easy to set up VPN client.

Michiel Nuyts, Richard Johannes


We are a social media analysis tool for the non-commercial sector.

Martin Fuchs, Niels Richter, Jona Hölderle


We make information about politicians accessible and searchable.

Michael Perk, Jonas Dippel


We ensure the availability of breathing masks using 3D printing.

Prototype -  Interconnectivity for social network

We want to create interconnectivity for social networks.

Steffen Schnürer, Martin Miller, Jana Rühle, Laurin Weger

Pseudify -  Pseudonymization for developers

We guarantee data security through pseudonymization.

Ralf Zimmermann


We reduce the burden on health authorities and make the data they collect more easily available.

Quba Viewer

We simplify the verification of e-invoices.

Jochen Stärk


We ensure that the results of scientific research are reproducible and transparent.

Simon Danisch

Recovery Cat

We help people with diseases to generate continuous and confidential health reports.

Alissa Rohrbach, Alexey Rodriguez Yakushev, Andreas Pittrich

Remove NA

We make queer history accessible in digital space.

Katharina Brunner

Residential Reporter

We make speculative real estate vacancies visible.



We help to evaluate acts of extreme right-wing violence.

Christoph Trost

RiseupVPN - OONI - IPv6

We improve RiseupVPN by making it more robust against censorship attempts.

Richard Johannes, Michiel Nuyts

We enable people without prior knowledge to build a digital infrastructure themselves.

Hannes Mehnert, Stefanie Schirmer

Robust OpenVPN Client With Low Use of Resources

We offer a simple yet robust VPN client.

Hannes Mehnert


We prevent unsafe breathing masks from being circulated.


We consolidate data on migration across the Mediterranean and make them accessible.

Mareike Ippen, Nicolas Zemke, Sascha Kiefer (Contributor)


We secure mailing lists against surveillance.

schleuder dev team

Search and Rescue Application

We help the civil sea rescue service to coordinate missions.

Joshua Krüger, Nicolas Zemke, Hendrik Simon


We enable whistleblowers to transmit their information to journalists in a protected manner.


Self-hosted Web-Archive (Web-Memex)

We enable users to save entire websites on their own computer.


Sensor.Community - Ökosystem aller Luftdaten-Community-Projekte

We connect different projects of air pollution measurement.

Lukas Mocek, David Lacckovic , Rajko Zschiegner


We make robotics and AI accessible to people.

Matthias Kubisch, Felix Just

Sex Education for All

We are developing a learning and exchange platform for young people on the subject of sexuality.

Cornelia Blum


We explain kids CAD.

Lucas Dieckmann

SHAR_E_BOX - The platform for eMobility

We support the expansion of eMobility through digital networking of the existing infrastructure.

Marc Weis, Fereydun Khanide

SiC - Secured management operations through signed containers

We enable container signature automation – for more security in the software supply chain.


Lucas Humfeldt, Thomas Fricke, Bianca Kastl, Gregor Bransky

Small Device C Compiler - Standardcompatibility and Usability

We develop a user-friendly compiler for 8-bit microcontrollers.

Dr. Philipp Krause, Dr. Felix Salfelder, Benedikt Freisen

SourceRider - The 'Fake News' Quiz App

We help to recognise Fake News in a playful way.

Jannik Werner, Simon Sasse


We are a decentralized image processing and sharing platform.

Jan Bölsche


We facilitate exchange and networking for locally involved groups.

Konrad, Lars, Robert


We uncover digital stalking.

Petra Hagemann, Uli Fouquet

STATISTIK ERKLÄRT – Explorable Explanations for Regional Statistics

We explain the background of official statistics in a way that more people feel confident to work with them.

Patricia Ennenbach, Christian Rijke, Simon Jockers

Stayalive - Insect counter

We document the insect population using artificial intelligence.

Nicola Wettmarshausen & Team

Staying Live

We provide secure streaming for all browsers.

Yoshua Wuyts

StoryWeb - structured journalism with a participant's network

We create a research tool out of journalistic knowledge


We complete the OpenStreetMap using gamification.

Tobias Zwick


We help social organisations to optimise their advisory processes and facilitate access to them.

Richard Meinsen, Christoph Haufe

Symp-lator: Medical Symptom Translator

We are translating your symptoms.

Muhit Paksoy, Hatice Pinar, Esra Zengin, Aytac Meral, Fatih Gönen


We connect people with different expertises.

Andreas Baldeau, Henry Bubert, Torben Spieker, Kathia von Roth, Sascha Wollin


We want to collect and evaluate public content on Telegram.

Grischa Stanjek, Gregor Weichbrodt, Tuija Wigard

The digital stage

We provide performing artists* with a smooth online rehearsal.

The Everything Exhibition

We transform content from Wikipedia into virtual exhibitions.

blinry, bleeptrack

The Open Green Web

We accelerate the transition of the Internet to the use of renewable energies.

Chris Adams

The Open Hearing Project

We enable people to customize the sound of their hearing amplification to meet individual needs.

Peggy Sylopp


We are developing a bridge between the secure messenger Threema and the open Matrix protocol.

Moritz Stückler, Fabian Schmidt

Timber Computer

We make sustainable construction tangible.

Martin Bittmann, Leonard Schrage


We improve video navigation on

Sebastian Morr


We create an userfriendly transcriptiontool.

Jaro Habiger, Karl Engelhardt, Robin Heinemann, Philipp Mandler


Future-proof tree planting with our help.

Christoph Trost

Trustping - secure connections, for people with cancer

We provide a platform where people with cancer can communicate in a protected environment.

Anke Nowottne, Stefan Otte

tuttle - painless business planning for freelancers

We are developing a financial planning tool that meets the needs of solo self-employed people.

Christian Staudt

Undo Ransomware

We protect data from ransom software using machine learning.

Matthias Held, Matthias Fratz


We are web app for anonymous collaboration on documents.

Nicolas Zemke, Yuliya Kochetkova

Urban Transport Analyst (UTA)

We visualize social injustice in city traffic.

Mark Padgham


We offer a computer vision tool for use in humanitarian operations.

Adam Harvey


We scour the net for videos of human rights violations.

Adam Harvey


We enable activists to easily produce high-quality video clips.

Felix Held

VISOR (Visualisation Instrument for Shared Open pRocesses)

We facilitate participation in the urban development process.

Robert Wartenberg, Stefan Maka


We improve the quality for live transmission of lectures.

Patrick Hoffmann

Voice-QL: Explore databases with spoken language accessibly

We make databases accessible for everyone.

Frank Börncke


We enable people to discover local shops in their vicinity.

XR-Event Plattform

We enable artists to create hybrid cross-reality events.

Anke von der Heide, Tobias Fischer, Thorbjörn Ruppel, Tom Milter

XRevent Broadcaster

We develope a free software for broadcasting direction.

Your Voice

We help users to synthesize their voice.

Thomas Werkmeister

Zeit Zuhause

We facilitate digital knowledge transfer.