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.
Jsme si vědomi toho, že je vybudována s ohledem na demokracii, a proto je demokracie velkým zaměřením. Jádrem návrhu jsou demokratické principy, jako je zodpovědnost, rovnost a transparentnost.

S implementací Decidim v Som Energia jsme vytvořili příjemný prostor pro občanskou participaci. Tento nástroj jsme uvolnili v roce 2018, za hostování valného shromáždění družstva a po pár měsících později jsme diskutovali o projektu přepracování vizuálního stylu a spolupracujícímu rozvoji School of Som Energia, kromě jiných participačních procesů. Za několik měsíců se zaregistrovalo více než 3500 účastníků, 5 participačních procesů, 3 shromáždění pracující a více než 1,300 hlasů při posledním hlasování Valného shromáždění.

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.

Často kladené otázky
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 ;-)
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).
How often is the platform updated?
We release a new version approximately every month. See the record of versions.
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.