The deadline for proposals for OpenFest 2025 is extended!

We have great news for everyone who wants to participate in the OpenFest 2025 program as a speaker, workshop organizer, or with their own booth.

Due to the great interest and numerous inquiries, we are extending the deadline for submitting proposals until September 15, 2025!

This is your chance to become part of the biggest Bulgarian festival dedicated to free software, open source, knowledge, and art. If you have an interesting idea, project, or experience you’d like to share, now is the time to do it.

Submit your proposal here

Don’t miss the opportunity to be a part of the inspiring OpenFest community. We are looking forward to your proposals and can’t wait to create an unforgettable event together!

18th and 19th of October, 2025
"John Atanasoff" forum, Sofia Tech Park, Sofia, Bulgaria

Sponsors

Partners

София Тех ПаркBulStreamipacct logo

Venue: "John Atanasoff" forum, Sofia Tech Park, Sofia, Bulgaria

By trolleybus

Trolley busses 5 and 8 to the Sofia Tech Park stop.

Trolley bus 4 to the Aviation Square bus stop.

By bus

Bus 73, 84, 184 or 306 to the Sofia Tech Park bus stop.

Bus 305 to the Aviation Square bus stop.

Map of all routes (click to enlarge):

OpenFest map