What is Open Data Day?

Open Data Day is an annual celebration of open data all over the world. For the ninth time in history, groups from around the world will create local events on the day where they will use open data in their communities. It is an opportunity to show the benefits of open data and encourage the adoption of open data policies in government, business and civil society.

All outputs are open for everyone to use and re-use.

Open Data
Day 2019

For Open Data Day 2019, we want keep the community growing. We'll give mini-grants on key areas that we believe open data can solve. You can see the past topics below

  • Open research data

  • Tracking public money flows

  • Open mapping

  • Data for equal development

0 events registered in 2018

Who is this for? Everyone!

If you have an idea for using open data, want to find an interesting project to contribute towards, learn about how to visualise or analyse data or simply want to see what's happening, then definitely come participate! Participation is a core value of Open Data Day, everyone is free to voice their opinions in a constructive manner. No matter your skill-set or interests, we are encouraging organisers to foster opportunities for you to learn and help the global open data community grow.

Event Resources

Need some inspiration for an Open Data Day event, or don't know where to find the data you need? Checkout our 2019 event resources.



Create a logo for your event with this logo generator!

Ideas and data sources

Hey there Open Data enthusiast! You just saw that International Open Data Day will be on Saturday, 2nd March 2019 and will be interested in hosting an event in your locality. Your only challenge now is finding the right idea that will hit the right spot. Our friends from the Open Data community have some ideas and data sources worth checking out.


Use data.world to upload or find data from many sources and organize all aspects of a project - including data, notebooks, analysis, and discussions - in a single workspace. Collaborate efficiently using many tools: query uploaded data with SQL, interact with data via R Studio or Python programs using the data.world API, link a Google Sheet to a dataset, or work locally in a spreadsheet and upload a file. After Open Data Day, this work is preserved to showcase what was achieved and permit the community to build upon progress without unnecessarily repeating the data prep and analysis completed on Open Data Day.

Open Research Data

Root data commons - Repository for general public data sets of scientific interest, hosted on the OSDC. Explore Open Data policies with the US Federal data sharing resource - http://datasharing.sparcopen.org/ All data on clinical trials, linked: Open Trials - http://opentrials.net/ Try text & data mining: Content Mine - http://contentmine.org/ Find a reusable dataset in your field: Zenodo

Tracking Public Money flows

Open Contracting - http://www.open-contracting.org/ Open Spending - http://next.openspending.org/ Cooking budgets - http://www.cookingbudgets.com/ Panama Papers - https://panamapapers.icij.org/ Municipal Money - https://municipalmoney.gov.za/ Development check - http://www.developmentcheck.org/


Datazar is a cloud-based research collaboration platform where you can run your analysis in your browser. Upload your data and create R notebooks, D3 visualizations, Scientia scripts, LaTeX publications and more directly from your projects. While you're making sense of the data, discuss with your team in real time and decide the best methods. Use the REST API to send the data directly from your local applications. Datazar is offering its computational resources for free so that open data can be shared and analyzed by everyone.

Support Scheme

The mini-grant applications are now closed. Good luck to all who applied!

Learn more
Open Data Day 2018 mini grants were kindly supported by:
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