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.
We suffer under a lack of public space. It's particularly important that we reclaim these public spaces for us. Open platforms such as Decidim do exactly that. Is not only that is open source so other people can fork it, reuse it and build a process. It also has these values that we want to reflect in our society encoded in the way it's designed.

Die Entscheidung Merida digitale Plattform war eine Gelegenheit, die wie nie zuvor die Mechanismen der Bürgerbeteiligung für die Ausarbeitung des Stadtentwicklungsplans von Me rida 2018-2021 eröffnet wurde. Wir hatten mehr als 3.000 Bürgerinteraktionen einschließlich Vorschläge, Kommentare, Anregungen und Unterstützung, dass das Erreichen des größtmöglichen Konsens darüber, was für unsere Stadt am besten ist. Zweifellos wird die Decide Me rida Plattform weiterhin unser Verbündeter sein, um Me rida zu einer zunehmend partizipativen Gesellschaft zu machen.

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
Do you support institutions?
Yes, but you have to be patient. There are a lot of institutions that want to use Decidim right now and we are helping them step by step. Contact us for any question and we will answer you as soon as possible.
What can a Decidim administrator do?
Easily configure participatory processes Do you want to make a strategic plan? Or discuss new regulations? Or discuss a new square or a public building to achieve the common good? Thanks to Decidim you will be able to configure participation spaces (initiatives, assemblies, processes or consultations) and enrich them through the multiple available components (face-to-face meetings, surveys, proposals, voting, follow-up of results, comments and many more).
What does it mean that Decidim is for free, "libre" and open source?
Decidim is a platform for citizen participation made by the people and for people. Its source code is open and can be inspected, modified, and enhanced by anyone. The Decidim software is covered by the AGPL license. That means that you can use it, modify it and redistribute derived versions of it as long as you respect the AGPL license.
What kind of members you accept into the Metadecidim community?
Anybody who has good faith and a correct attitude towards democratic collaboration.