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
City of 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.
Los principios democráticos como la rendición de cuentas, la igualdad y la transparencia están en el centro del diseño. Decidim es está construido teniendo en mente la democracia, es su gran foco.
Katja Henttonen
Ayuntamiento de Helsinki
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
Prácticamente cada proceso participativo que ha llegado a nuestra mesa, lo hemos podido resolver usando las reglas de negocio de Decidim. Como herramienta, es una muy robusta. Sin embargo, la parte que nos parece más fuerte e importante es su comunidad, tanto de desarrolladoras como de aquellas que lo usan para procesos participativos. Convivir con ellas nos ha hecho dimensionar los desafíos que conlleva implementar la democracia participativa en el mundo real.
Alejandra González
Gobierno Abierto de Ciudad de México
Preguntas más frecuentes
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.
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.
How can I become a member of the Decidim Association?
Now the people involved in the project can be partners. Here we explain in detail how you have to do it