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
Code for Japan
Decidim provides customize-friendly architecture so that we can adapt it to our domestic situation.
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)
Le processus a débuté en octobre 2019 au sein de la DG Communication et Démocratie en ligne de la Commission européenne au Centre commun de recherche (service de la science et de la connaissance de la Commission européenne). Une analyse des besoins de la Conférence et des outils adaptés à ceux-ci, a conduit à choisir l'outil open source Decidim pour sa maturité technique, sa grande communauté et sa flexibilité.
Sivan Pätsch
Directeur de la recherche OpenForum Europe, Union européenne
Foire aux questions
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 is the Social Contract?
That's how we call our Code of Democratic Guarantees and Democratic Collaboration. All members of the community must endorse the Social Contract.
I want to fund the project. How can I proceed?
Yes you can! Decidim is a non profit project and for the moment it depends completely on funding. Please find all details to fund the project at OpenCollective
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.