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NWB Workshops and Hackathons

Welcome to the 13th NWB Hackathon: User Days!!


The final report for the 2022 NWB User Days is now available on GitHub (PDF) (LaTeX).

Dates and Location


Registration is now closed. If you would like to be added, please contact the organizers and we may be able to accomodate your request.

Participation in this event requires strict adherence to Janelia’s COVID-19 safety protocols and policies, which may include a combination of pre-arrival testing, onsite testing, wearing masks, and more. Further details about our COVID policies and guidelines will be shared in due time.


Housing: Housing will be onsite on the Janelia research campus. For details about transportation and logistics please see here

Travel: Travel support is not provided. Limited funds may be available to support attendee travel. Attendees should plan to arrive Sunday night and depart either Wednesday night or Thursday morning. Once attendance has been confirmed, we will contact you to collect additional information regarding your travel details.

Directions: The Janelia Research Campus is located in Loudoun County, Virginia – just 30 miles from Washington, DC, and about eight miles north of Dulles International Airport (IAD). For directions see https://www.janelia.org/directions


Agenda Planning -- 13th NWB Hackathon at HHMI Janelia


Tutorial Materials

Organizing Committee

Program chair: Oliver Rübel and Ben Dichter

Administrative Support: Janine Stevens

Additional Organizational Support



Recordings of talks will be made available on the NWB Youtube channel.

What to bring?


The Neurodata Without Borders project (NWB, nwb.org) is an effort to standardize the description and storage of neurophysiology data and metadata. NWB enables data sharing and reuse and reduces the energy-barrier to applying data analytics both within and across labs. Several laboratories, including the Allen Institute for Brain Science, have wholeheartedly adopted NWB. The community needs to join forces to achieve data standardization in neurophysiology. The purpose of the hackathon is to bring the experimental neurophysiology community together to further adoption and the development of NWB, the NWB software libraries, and the progress of the scientific workflows that rely on NWB. Members of the community will exchange ideas and best practices for using NWB and the libraries, share NWB based tools, surface common needs, solve bugs, make feature requests, brainstorm about future funding and collaboration, and make progress on current blockages. The event will also enable NWB developers and users to interact with each other to facilitate communication, gather requirements, and train users.

Note: This event is meant to foster community and collaboration around NWB, not competition. As such, this is really more of a “workshop” or “tutorial” than a “hackathon.” There will be no judges nor prizes. Participants will be expected to bring data from their own lab and/or collaborate with others to build integration with NWB.


For instructions on how to create a project see here

User Projects

Please see the Projects Google Doc for the list of hackathon projects.

Projects are collaborative in nature. If you are attending the hackathon and are interested in participating in any of the existing projects, then please contact the team listed on the project page and add your name to the list of participants for the project.

Code of Conduct

We are dedicated to providing a harassment-free hackathon experience for everyone, regardless of gender, gender identity and expression, sexual orientation, disability, physical appearance, body size, race, age or religion. We do not tolerate harassment of event participants in any form. Sexual language and imagery is not appropriate for any event venue, including talks. event participants violating these rules may be sanctioned or expelled from the event without a refund at the discretion of the event organizers.

Harassment includes, but is not limited to:

Verbal comments that reinforce social structures of domination related to gender, gender identity and expression, sexual orientation, disability, physical appearance, body size, race, age or religion. Sexual images in public spaces Deliberate intimidation, stalking, or following Harassing photography or recording Sustained disruption of talks or other events Inappropriate physical contact Unwelcome sexual attention Advocating for, or encouraging, any of the above behaviour Enforcement Participants asked to stop any harassing behavior are expected to comply immediately.

Organizers and presenters are also subject to the anti-harassment policy. In particular, they should not use sexualized images, activities, or other material.

Event organisers may take action to redress anything designed to, or with the clear impact of, disrupting the event or making the environment hostile for any participants.

If a participant engages in harassing behaviour, event organisers have the responsibility to remind the offender about our Code of Conduct, and warn them that repeated inappropriate, uncivil, threatening, offensive, or harmful behavior can lead to a temporary or permanent ban from the event with no refund. The offending person(s) may also see affected their participation in future NWB and DANDI events.

We expect participants to follow these rules at all event venues and event-related social activities. We think people should follow these rules outside event activities too!


If someone makes you or anyone else feel unsafe or unwelcome, please report it as soon as possible to the events organizers. Harassment and other code of conduct violations reduce the value of our event for everyone. We want you to be happy at our event. People like you make our event a better place.

You can make a report either with your personal email or using an anonymous email.

NWB Contributor Code of Conduct

When directly contributing to the NWB project, contributors are expected to follow the NWB Contributor Code of Conduct


This hackathon code of conduct is adapted from the Brainhack Code of Conduct.


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