OPIN - Platform for youth eParticipation in Europe

Ever wondered how to get young people involved in politics online?OPIN, a European toolbox for youth eParticipation projects, shows you how.

Participation on OPIN not possible from 2024 onwards

We have decided to close the participation section on OPIN. We sincerely thank all the dedicated advocates for youth political participation.

On OPIN.me, you can still find information about youth participation. Our collected experiences and tips will remain accessible to you.

We invite you to migrate to our free participation platform, adhocracy+. It offers the same functionalities as OPIN and is available in German, English, Dutch, Kyrgyz, and Russian.

Go to ahdocracy+

Use Cases

Four euopean institution show you, how to use OPIN in a youth participation process.


Collecting young people's ideas for a playground.


How to conduct a consultation for youth policy.


Connecting young voters’ needs and party programs.

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

Meet our Ambassadors

You would like to talk to someone who has already successfully implemented a youth participation project? Our 4 European Ambassadors are happy to help and share their tips and tricks with you.

List of Ambassadors

A free platform from a non-profit association



You can use OPIN to start digital participation projects directly, without needing installation or prior technical knowledge.


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.


Free of charge

OPIN can be used free of charge. We only offer additional services such as trainings for a fee.

Setting up an e-participation project can be challenging. We would like to help you!

In our e-leraning section you will find articles and explainer videos that will help you to set up your process.


Idea phase

Frame your project


Preparation phase

Get your project ready


Participation phase

Put your project to work


Outcome phase

Make your project count

OPIN guidelines from A to Z

Want to read the OPIN guidelines in one go? Download the PDF version here.