Digital Citizen Participation with Decidim
Decidim is a flexible and user-friendly platform for bringing all your citizen participation into one place.
Decidim is a digital platform for participation used worldwide by cities, associations, governments, and the European Commission.
Platform features can be combined to create a variety of participation types, such as participatory budgets, local assemblies, citizen proposals, and dialogue processes.
The platform is open source, so improvements developed by larger cities like Barcelona and Helsinki are also available to smaller cities.
Digidem Lab is the official partner for Decidim and develops and supports digital participation in combination with process design and facilitation.
Features that can be combined into participation processes

Decidim is a platform created to increase access to information and dialogue. Giving sovereignty over technology to citizens means making them co-creators and owners of public services, which for us is the definition of a Smart City.
Francesca Bria, former Digital Innovation Officer of Barcelona
Processes in Decidim
Customized for your needs



We customize the design according to your graphic profile, to become an integrated part of your digital communication.
Do you need functionality for participant verification, login with BankID, or machine translation of content? Decidim is flexible and can be customized to meet your needs, through the installation of ready-made plugins or the development of custom functionality.
Our offer to you
Designed for inclusive participation
Principles for Decidim
Those who use Decidim commit to a social contract, which includes equal and inclusive participation and transparent processes. Decidim uses open-source code, which means you don't pay licensing fees for using the code. It also means you benefit from the development and improvement of the platform by other cities.
Personal Data
We handle personal data according to GDPR and your guidelines and sign a Data Processing Agreement (DPA) with you for the project. All our data handling is done on servers within the EU, and no data is shared with external third-party services.
Accessibility
We place great importance on accessibility for people with disabilities. Our version of Decidim has been tested according to both the legal requirements of WAD and the strict accessibility standard WCAG 2.2 AA.