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
Code for Japan
Decidim provides customize-friendly architecture so that we can adapt it to our domestic situation.
Read the case study
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 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.
Part of what makes Decidim so powerful is that it adds a level of abstraction to the work separating out the steps of a process and the activities associated with the process. That’s part of the information architecture, so that not only you are saying what is happening at each step but different parts of Decidim behave differently depending on when you are doing or depending on what step in the process you are in. The fact that that’s customizable really allows Decidim to be moulded to how we are doing our work and not our work to be moulded.
Francisco Tena
Pipeline to Power, working for NYC Civic Engagement Commission
Grâce à Decidim, nous sommes parvenus à coproduire un plan stratégique pour la ville de Barcelone avec ses citoyens. En 2016, nous avons inauguré le Plan d’Action Municipale sous la forme d’un processus participatif par le biais de Decidim Barcelone. Actuellement, ce plan comprend près de 7 000 propositions citoyennes. L'un des avantages de l'utilisation de cette plateforme est que vous pouvez contrôler à tout moment l'état de mise en œuvre des propositions approuvées.
Gala Pin
Hôtel de Ville de Barcelone (2015-2019)
Nous manquons d'espaces publics pour nous exprimer. Il est important que nous reprenions contrôle de ces derniers. Les plateformes ouvertes comme Decidim font exactement cela. Ce n'est pas seulement ça qui est open-source (pour que d'autres personnes puissent le forker, le réutiliser et construire un processus participatif). Decidim a également ces valeurs que nous voulons refléter dans notre société codée de la manière dont la plateforme est conçue.
Kasia Odrozek
Fondation Mozilla
Foire aux questions
Is there any tutorial to start setting it up?
You can check the latest version of our admin manual in the Documentation section.
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
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 is the Metadecidim community?
Metadecidim is the community of Decidim that collaborates in the design of the platform and the construction of the Decidim project. We meet regularly through the Community Meetings, for issues related to the technological aspects of the platform and the Labs witc are Research oriented meetings. Our annual conference is Decidim Fest. Go to meta.decidim.org to follow the calls closely and if you want to join the community. We'd love to ;-)