First steps with Decidim
Decidim is a digital platform
for citizen participation
Installing Decidim
You can install it yourself or find someone to help you with tech support.
The right tool for you
For big or small organisations, discover how Decidim can cater to your needs.
Decidim in your city
If your city is thinking of deploying participatory policies, find out how you can convince them to do it.
Is Decidim the right tool for you?
Decidim’s flexible features are designed to serve both small and large collectives, public and private organisations, with hundreds or thousands of potential users.
Explore all featuresBacked by technology, democracy and experience

Stadt Helsinki
We evaluated seven different kinds of participatory budgeting options to find the right platform to support...
Read the case study
Europäische Kommission
Die digitale Plattform wurde am 19. April 2021 gestartet und war bis zum 9. Mai 2022 offen für Beiträge. In dieser...
Read the case studyRead more case studies on our blog
Who’s behind the platform?
Metadecidim is the community that collaborates in the design of the platform and the development of the project. Together we design and create new features and report bugs for continuous improvement of the platform.
The Decidim Free Software Association is a democratic association for the governance of the Decidim community.
Was wir schätzen ist, dass es unter dem Gesichtspunkt der Demokratie aufgebaut ist und daher die Demokratie ein großes Anliegen ist. Demokratische Grundsätze wie Rechenschaftspflicht, Gleichheit und Transparenz stehen im Mittelpunkt des Entwurfs.
Katja Henttonen
Stadt Helsinki
Mit der Implementierung von Decidim in Som Energia haben wir einen freundlicheren Raum für Partizipation geschaffen. Wir haben das Tool 2018 freigegeben als Gastgeber der Generalversammlung der Genossenschaft und Monate später diskutierten wir das Image Redesign und die gemeinsame Entwicklung der Schule von Som Energia, unter anderen partizipatorischen Prozessen. In wenigen Monaten haben sich mehr als 3.500 Teilnehmer registriert, 5 Beteiligungsprozesse, Bei der letzten Generalversammlung stimmten 3 Versammlungen und mehr als 1.300 Stimmen.
Yaiza Blanch
Som Energia
The process started in October 2019 at the European Commission’s DG Communication and eDemocracy unit at the Joint Research Centre, the European Commission's science and knowledge service. An analysis of the needs of the Conference and which tools fit those, lead to choosing the open source tool Decidim for its technical maturity, broad community and adaptability.
Sivan Pätsch
OpenForum Europe Research Director, European Union
Häufig gestellte Fragen
Where can I find the project roadmap and the planned features?
You can find the roadmap of new features of the project at GitHub.
What do I need to install Decidim?
Installing Decidim is easy but you need some knowledge and technical requirements. See the documentation for installing Decidim.
What are the differences with Consul Project / Decide Madrid?
There are many differences: features, flexibility, architecture, modularity, etc. We have published a post to try to answer this question.
What can a participant (user) of Decidim do?
Decidim makes it possible for thousands of people to organize themselves democratically by making proposals, attending public meetings, fostering decision-making discussions, deciding through different forms of voting and monitoring the implementation of decisions.