OPIN - Platform for youth eParticipation in Europe

All-in-one digital participation toolbox for youth organisations or public administrations. (Test Server)


OPIN is an all-in-one digital and mobile participation toolbox for youth organisations or public administrations. Build professional eParticipation processes without being a pro! All stages of the project are transparent and supported by OPIN’s software: 

  • features for digital and mobile participation 
  • intelligent community management 
  • integration of offline events
  • multimedia information about your project

Launch your own projects

Register your organization on OPIN and start your own participation projects! Click below and create your very own page on OPIN with a few simple steps.

Register your organization

Find inspiration and answers in the OPIN Community

In our OPIN community, you can ask questions, find inspiration and share insights from your projects. We invite you to join the conversation.

OPIN community

Get started with our tutorials


Why e-participation?


Principles for good quality

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Results that count

A free platform from a non-profit association

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You can use OPIN to start digital participation projects directly, no need to install anything.

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Non-profit & Open Source

The platform is developed and operated by Liquid Democracy, a non-profit association from Berlin. The code is in the public domain.