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
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
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.
What 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
Gala Pin
Barcelona City Hall (2015-2019)
"Thanks to Decidim, in Barcelona we have managed to co-produce a strategic city plan together with the citizens. In 2016 we inaugurated the Municipal Action Plan in the form of a participatory process through Decidim Barcelona. Currently, this plan includes almost 7 thousand citizen proposals. One of the advantages of using this platform is that you can monitor at all times the state of implementation of the approved proposals."
Renán A. Barrera Concha
City Council President of Mérida Yucatán, Mexico.
"The Decide Mérida digital platform was an opportunity that opened as never before the mechanisms of citizen participation for the elaboration of the Municipal Development Plan of Mérida 2018-2021. We had more than 3,000 citizen interactions including proposals, comments, suggestions and support that achieving the highest consensus possible about what is best for our city. Undoubtedly, the Decide Mérida platform will continue to be our ally in making Mérida an increasingly participative society."
Katja Henttonen
City of Helsinki
"What we appreciate is that it’s built with democracy in mind and therefore democracy is a big focus. Democratic principles such as accountability, equality and transparency are in the core of the design."
Gala Pin
Barcelona City Hall (2015-2019)
"Thanks to Decidim, in Barcelona we have managed to co-produce a strategic city plan together with the citizens. In 2016 we inaugurated the Municipal Action Plan in the form of a participatory process through Decidim Barcelona. Currently, this plan includes almost 7 thousand citizen proposals. One of the advantages of using this platform is that you can monitor at all times the state of implementation of the approved proposals."
Renán A. Barrera Concha
City Council President of Mérida Yucatán, Mexico.
"The Decide Mérida digital platform was an opportunity that opened as never before the mechanisms of citizen participation for the elaboration of the Municipal Development Plan of Mérida 2018-2021. We had more than 3,000 citizen interactions including proposals, comments, suggestions and support that achieving the highest consensus possible about what is best for our city. Undoubtedly, the Decide Mérida platform will continue to be our ally in making Mérida an increasingly participative society."
Katja Henttonen
City of Helsinki
"What we appreciate is that it’s built with democracy in mind and therefore democracy is a big focus. Democratic principles such as accountability, equality and transparency are in the core of the design."
Participation for social change
Empower your community by creating truly democratic processes. Avoid participatory washing, use Decidim to organize collective intelligence and transform reality.