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.
私たちが評価しているのは、民主主義を念頭に置いて作られているため、民主主義が大きな焦点となっていることです。説明責任、平等性、透明性といった民主主義の原則が、設計の中核をなしています。
Katja Henttonen
ヘルシンキ市
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
Decidimのおかげで、バルセロナでは市民と一緒に戦略的な都市計画を共同制作することができました。2016年には、Decidim Barcelonaによる参加型プロセスの形で、市のアクションプランを発足させました。現在、この計画には約7,000件の市民提案が含まれています。このプラットフォームを利用するメリットのひとつは、承認された提案の実施状況をいつでもモニターできることです。
Gala Pin
バルセロナ シティホール (2015-2019)
よくある質問
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 often is the platform updated?
We release a new version approximately every month. See the record of versions.
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 ;-)