Decidim: Open-Source Democratic Participation Platform

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Decidim is tangentially relevant to AI safety as a model for participatory governance infrastructure that could inform how AI policy decisions are made collectively; it illustrates technical approaches to large-scale democratic deliberation.

Metadata

Importance: 28/100tool pagetool

Summary

Decidim is a free, open-source digital infrastructure for participatory democracy, enabling organizations and governments to facilitate collective decision-making, citizen assemblies, and participatory budgeting. It provides tools for structured public deliberation, proposal development, and collaborative governance at scale. Originally developed for Barcelona's city government, it has been adopted by hundreds of organizations worldwide.

Key Points

•Open-source platform supporting participatory budgeting, citizen assemblies, consultations, and collaborative policy drafting
•Designed to enable scalable democratic deliberation and collective decision-making in governments and organizations
•Originally built for Barcelona city government; now used by hundreds of institutions globally
•Provides transparent, auditable participation processes with strong data sovereignty and ethical commitments
•Relevant as infrastructure for AI governance participation and collective intelligence in policy processes

Cited by 1 page

Page	Type	Quality
AI-Assisted Deliberation	Approach	63.0

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# Decidim is a digital platform for citizen participation

Free/libre, open and safe technology.

With all democratic guarantees.

Reprogramming democracy is now possible with Decidim.

[Get started](https://decidim.org/first-steps)

[![](https://decidim.org/uploads/logo_aj_barcelona_red.svg)](https://www.decidim.barcelona/)[![](https://decidim.org/uploads/logo_aj_nyc_red.png)](https://www.participate.nyc.gov/)[![](https://decidim.org/uploads/logo_european_comission_red.png)](https://citizens.ec.europa.eu/)[![](https://decidim.org/uploads/logo_aj_helsinki_red.png)](https://omastadi.hel.fi/)[![](https://decidim.org/uploads/logo_brasil_participativo_red.png)](https://brasilparticipativo.presidencia.gov.br/)[![](https://decidim.org/uploads/logo_aj_cdmx_red.png)](https://web.archive.org/web/20240423051157/https://plazapublica.cdmx.gob.mx/)

![Strategic planning](https://decidim.org/images/index/accountability.png)

![Participatory processes](https://decidim.org/images/index/participatory_processes.png)

![Assemblies](https://decidim.org/images/index/assemblies.png)

![Initiatives and citizen consultations](https://decidim.org/images/index/initiatives.png)

![Participatory budgeting](https://decidim.org/images/index/budgets.png)

![Networked communication](https://decidim.org/images/index/conversations.png)

- ###### Strategic planning

- ###### Participatory processes

- ###### Assemblies

- ###### Initiatives and citizen consultations

- ###### Participatory budgeting

- ###### Networked communication


[Explore all features](https://decidim.org/features)

Decidim helps citizens, organizations and public institutions self-organize democratically at every scale.

##### Implementing a flexible democratic system

We can help configure a system of democratic governance in all kinds of organizations.

[Our features](https://decidim.org/features)

##### We take democracy very seriously

Decidim ensures transparency, traceability and integrity of information like never before. It provides security, privacy and confidentiality to all participants.

[Social contract](https://decidim.org/contract)

##### It's yours. Use it. Share it. Improve it.

A platform designed entirely with free software, open and collaborative content thanks to the Metadecidim community.

[The community](https://decidim.org/community)

> 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.

![Katja Henttonen](https://decidim.org/images/testimonials/katja_henttonen.jpg)
Katja Henttonen

City of Helsinki


> 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 poss

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