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

European Commission
The digital platform was launched on 19 April 2021 and was open to contributions until 9 of May 2022. During this...
Read the case study
Stadt Helsinki
We evaluated seven different kinds of participatory budgeting options to find the right platform to support...
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.
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.

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.

Fast jeder partizipatorische Prozess, der an unseren Tisch gekommen ist, ist es uns gelungen, ihn nach den Geschäftsregeln von Decidim zu lösen. Als Werkzeug ist es ein sehr starkes Werkzeug. Der Teil, der uns jedoch am stärksten und am wichtigsten erscheint, ist seine Gemeinschaft, sowohl Entwickler als auch diejenigen, die es für partizipative Prozesse verwenden. Die Koexistenz mit ihnen hat uns veranlaßt, die Herausforderungen zu erkennen, die mit der Umsetzung der partizipatorischen Demokratie in der realen Welt verbunden sind.

Häufig gestellte Fragen
How can I get more information about the Decidim Association?
In the general assembly of the Decidim Association you can find more info abous us, follow the activity of the meetings and check relevant information (statutes, legal agreements, the internal regulations)
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 is Decidim?
Decidim is a Free Open-Source participatory democracy platform for cities and organizations. But Decidim is more than a digital platform: it’s a common's free and open project and infrastructure involving code, documentation, design, training courses, a legal framework, collaborative interfaces, user and facilitation communities, and a common vision.
Do you have a Demo? I want to use Decidim now, without installing it, to see how it works.
Yes, we have an online demo.