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.
私たちのテーブルに来たほとんどすべての参加型プロセスは、Decidimのビジネスルールを使って解決することができました。ツールとしては非常に強力なものです。しかし、私たちにとって最も強力で重要な部分は、開発者と参加型プロセスに使用している人たちの両方のコミュニティです。彼らと共存することで、現実の世界で参加型民主主義を実現するための課題を理解することができました。
Alejandra González
メキシコシティでのオープンガバメント
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
デジタルプラットフォーム「Decide Mérida」は、メリダ市開発計画2018-2021の策定において、市民参加の仕組みをかつてないほどに開放する機会となりました。提案、コメント、提案、支援など、3,000人以上の市民が参加し、私たちの街にとって何がベストなのか、可能な限り高いコンセンサスを得ることができました。Decide Méridaプラットフォームは、メリダをますます参加しやすい社会にするための味方であり続けることは間違いありません。
Renán A. Barrera Concha
メキシコ、ユカタン州メリダ市の市長。メキシコ・ユカタン州メリダ市議会
よくある質問
What is Decidim's trademark policy?
Decidim and the Decidim logo are registered by the Association, they cannot be used as a commercial product nor cannot be sold. If used, the credit has to be referenced to the project. You can read more about this in our Trademark policy.
What is Decidim?
Decidim is a Free Open-Source participatory democracy platform for cities and organizations. But Decidim is more than a digital platform: it’s a common's free and open project and infrastructure involving code, documentation, design, training courses, a legal framework, collaborative interfaces, user and facilitation communities, and a common vision.
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.
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).