Line Up

SOHN, Faber,
Yves Tumor,
Woods of Birnam,
DāM FunK, Toresch
& many more…


From Vegan, to Sausages

We offer you just
all you need.
And a perfect Caffè.


Open Squares 

Our space for all
new ideas from NRW.


More than just fresh air

The Horse Race Course
Grafenberg is one of the most
beautiful Festival locations
you can imagine.


Room for Art

Students from the
KHM Cologne
present their work
all over the
festival ground.


Open Squares

These are the Open Squares.

Here is your place to present, network and discover. Apply now!


Your idea is there and it wants out – out of the lab, the studio, out of the office or store. The Open Squares are a platform to present your visions to the public.

This competition is addressed to all creative minds from NRW – no matter if its art, design, photography, music, fashion or simply your own category.


An interdisziplinary expert panel will pick 20 ideas and projects whom we provide a 3m x 3m presentation area in form of a cupola tent.

Interested? You (and your team) can apply from March 5th until May 10th here:

What do the winners get?

– a free exhibition area at the Open Source Festival on July 13th with about 7000 visitors

– promotion of your idea/ your project on all social media channels of the festival (facebook, flyer, website etc.)

– support of the OPEN SQUARES Team

– free enty to the festival as well as additional guest list



How can you take part?

– you are a creative mind and you have an idea or a project that you want to present to the public

– you are from North-Rhine-Westfalia and want to apply solo or in a team

– send us a short information about the project, a photo and your idea of how to present it at the festival via the online form

We are looking forward to your applications!

conditions of participation:

application sheet:

Friendly supported by: Ministeriums für Wirtschaft, Energie, Industrie, Mittelstand und Handwerk des Landes Nordrhein-Westfalen.


Tune in

Our Spotify playlist with all so far confirmed artists performing live on the  Open Source Festival on July 13th 2019.


OSF+, the event series of the Open Source Festival as a supplement to the annual festival. Concerts, film screenings and club nights are on the agenda… More

Absage Talib Kweli

Leider müßen wir die Einladung Talib Kwelis zum Open Source Festival am 13.7.19 zurückziehen…


OSF 2018

7000 x thank you. Have a look at reviews, aftermovies and photo gallery here…



Du liebst Musik? Du liebst Festivalfeeling? Du wolltest schon immer ein Teil davon sein? Dann melde dich als Volunteer für das Open Source Festival  und den OSF Congress 2019 und unterstütze uns am Einlass, als Backstage-Helfer oder am Infoservice – jede Position ist wichtig!


Cardinal Sessions Showcase

Together with our partner of the Young Talent Stage sipgate we have considered something very special and invited Cardinal Sessions from Cologne to do a showcase! The focus here was on the sipgate Young Talent Stage, where every year newcomer bands from North Rhine-Westphalia prove their talent and ability. With 5 of the 8 winning […]


Open Source Festival

Horse Race Course Düsseldorf