OpenFest Twentieth Edition

We are distracting you during the warm July days to make you smile with a piece of news. This year we will organize the familiar event again. The edition is the 20th in a row, and the dates are October 15 and 16. Circumstances at the moment include introduction of partial covid measures and a […]

DataArt held a competition on its own platform Skillotron and announced the winners

During OpenFest 2021 event DataArt held a competition on its own platform for testing technological knowledge called Skillotron: winner of the competition is Kiril Mudev with an impressive result of 95.50% correct answers. He received the main prize – a voucher of 150 BGN for Technomarket.Encouragement awards are given to the other four participants […]

We are happy to announce one more sponsor – Dev Craft!

Dev Craft’s mission is to deliver software solutions they are proud of. While doing so, they grow as professionals. They love to experiment with new technologies, deliver good code, and help find solutions to all types of IT problems. They share their knowledge and they are open to new ideas and concepts. They love open-source […]

Online contest by the global technology consultancy DataArt

DataArt is a global technology consultancy that designs, develops and supports unique software solutions, helping clients take their businesses forward. Recognized for their deep domain expertise and superior technical talent, DataArt teams create new products and modernize complex legacy systems that affect technology transformation in the telecommunications, financial, healthcare, tourism, media and gaming industry sector. […]

Technical challenge by Halo DX

Halo DX prepared a technical challenge for you through the Hackerrank platform. You can find out how to participate at their booth during the event. The first three who solved it best will get prizes:

Тhe FreeBSD Foundation is pleased to sponsor and speak at OpenFest 2021

We are a 501(c)(3), US based, non-profit organization dedicated to supporting and promoting the FreeBSD Project and community worldwide. Funding comes from individual and corporate donations and is used to fund and manage software development projects, fund conferences and developer summits, support FreeBSD Project Infrastructure, serve as the FreeBSD Project’s legal entity, and provide travel […]

StorPool Storage – Gold sponsor at OpenFest 2021

We are happy to announce that StorPool Storage, the innovative Bulgarian software company, is joining us again as a sponsor. StorPool has been with us and the open-source community for many years and will support OpenFest as a gold sponsor on this year’s live event on the 14-15 August 2021. Meet StorPool’s team on their […]

HALO DX – an easy access to advanced diagnostics

HALO DX is a rapid growth technology company that creates life-changing patient insights and outcomes in radiology. The company also offers unparalleled outcomes and a patient-first experience. They leverage leading-edge artificial intelligence, mobile, and SaaS technology as well as the latest in genomics-based companion diagnostics and research. The company’s mission is to improve human health […]

Yello, we are Banafo – your conversations’ new best friend!

We’re happy to support OpenFest in times when our whole lives are online & share with you how to make the most out of it. How about turning all your (video) calls into a neat collection of recordings and transcripts? We train our own voice-to-text models (burning a video card or twenty in the process) […]

DevriX – a leading WordPress development agency

We are happy to share that DevriX is one of the sponsors of OpenFest 2021- the biggest Bulgarian conference for Free & Open-Source Software. DevriX’s team believes in the spirit of open-source and constantly contributes back to WordPress. For Mario Peshev and his team the software development must be a transparent process so that future […]

SAP: Run better together with open source

At SAP, they believe in Open Source, Open Standards, and Open APIs which makes them support Open Fest also this year. Their solutions provide more choices and flexibility by using such open technologies. As no single company can keep pace with the power and speed of communities that openly co-innovate, at SAP they believe that […]

T-shirts available

This year you can order a T-shirt or two again! Following the link you may choose color, design and size. Ordering through this form allows us to provide enough pieces.

Become a Part of the OpenFest Team

Once again we’re looking for volunteers who will become part of the OpenFest 2021 team. Here you can find out more about the teams who make the event happen and apply to become part of them.

Call for Participation

If you have an interesting talk, idea or project you’d like to share during OpenFest 2021, we invite you to apply at

OpenFest 2021 Summer edition

The organizing team presents the first open-air edition of the popular event. Challenging times require extraordinary approaches. Led by the desire to meet people in person again, and be able to socialize live, the OpenFest staff invites everyone interested in open culture to attend the 19th edition of the conference – under the open skies […]

14th and 15th of August, 2021
"Maymunarnika" club, Borisova gradina park, Sofia, Bulgaria





Venue: "Maymunarnika" club, Borisova gradina park, Sofia, Bulgaria

By trolleybus

Lines 3, 4, 5 and 11 to Bulgarian News Agency stop.

By bus

Lines  204, 213, 280, 304, 505, 604 to Eagle’s Bridge bus stop.

Lines 76, Е84, Е184 to Bulgarian News Agency bus stop.

By metro

Line М3 to Eagle’s Bridge metro station.

Lines М1, М4 to Vasil Levski National Stadium metro station.