A digital platform for participation and community governance.
Free/Libre Open Source infrastructure with all democratic guarantees.
What can you do with Decidim?
Decidim helps citizens, organizations and public institutions self-organize democratically at every scale.
Run participatory processes
To foster debate, assessment, and decision-making on issues that matter to your community.
Collect proposals from participants
Enriched with geolocation and attachments, merge similar ones, and set a workflow for official approval or rejection.
Vote and select proposals
You can use various voting methods, such as setting minimum and maximum thresholds, weighted voting, or participatory budgeting.
Organize face-to-face or online meetings for co-creation
Manage registrations, publish the agenda and upload the proposals co-created in a session.
Comment and discuss with your community
Engage your community in a deliberation topic, and follow the discussion with different visualizations of the arguments.
Use cases
Stories about Decidim in action, around the world with diverse purposes and contexts.
Participatory Budgets 2020-2023 in Barcelona
The first participatory budgets in the city, or how to promote democratic transparency and citizen empowerment
Read the case study
Brazils Participatory Plurianual Plan: embedding citizen participation in federal strategic planning
A strategic planning process that led to the launch of the Brasil Participativo platform
Read the case study
The Japanese Case
The first Decidim instance in the Pacific island was deployed on the year 2020 at Kakogawa, later came Yosano, Nishiaizu, Kamaishi and the community instance Meta.
Read the case studyWhat makes Decidim unique?
Open source for digital sovereignty
A platform designed entirely with free-open source software. No vendor lock-in, you can install decidim on your own server. You can improve it and contribute to the project.
First steps
We take democracy very seriously
Decidim ensures transparency, traceability, and integrity of information. It provides security, privacy, and data confidentiality to all participants. Our values are embedded in the code.
Read our social contract
A global community to participate in
Become part of a global community that promotes democracy and free software. You’ll be able to take part in events, learn from others and be part of a model of technological governance that is unique in the world.
Join our community
Kasia Odrozek
Mozilla Foundation
"We suffer under a lack of public space. Its 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."
Alejandra González
Open Government of Mexico City
"Almost every participatory process that has come to our table, we have been able to solve it using Decidim’s business rules. As a tool, it is a very strong one. However, the part that seems strongest and most important to us is its community, both developers and those who use it for participatory processes. Coexisting with them has made us appreciate the challenges involved in implementing participatory democracy in the real world."
Yaiza Blanch
Som Energia
"With the implementation of Decidim in Som Energia we have generated a kinder space for participation. We released the tool in 2018, hosting the General Assembly of the Cooperative and months later we debated the Image Redesign and collaborative development of the School of Som Energia, among other participatory processes. In a few months, more than 3,500 participant people have registered, 5 participatory processes, 3 assemblies operating and more than 1,300 votes in the last General Assembly vote."
Kasia Odrozek
Mozilla Foundation
"We suffer under a lack of public space. Its 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."
Alejandra González
Open Government of Mexico City
"Almost every participatory process that has come to our table, we have been able to solve it using Decidim’s business rules. As a tool, it is a very strong one. However, the part that seems strongest and most important to us is its community, both developers and those who use it for participatory processes. Coexisting with them has made us appreciate the challenges involved in implementing participatory democracy in the real world."
Yaiza Blanch
Som Energia
"With the implementation of Decidim in Som Energia we have generated a kinder space for participation. We released the tool in 2018, hosting the General Assembly of the Cooperative and months later we debated the Image Redesign and collaborative development of the School of Som Energia, among other participatory processes. In a few months, more than 3,500 participant people have registered, 5 participatory processes, 3 assemblies operating and more than 1,300 votes in the last General Assembly vote."
Participation for social change
Empower your community by creating truly democratic processes. Avoid participatory washing, use Decidim to organize collective intelligence and transform reality.