Free software programmed in Scala

general-purpose programming language

DBpedia (from "DB" for "database") is a project aiming to extract structured content from the information created in the Wikipedia project. This structured information is made available on the World Wide Web using OpenLink Virtuoso. DBpedia allows users to semantically query relationships and properties of Wikipedia resources, including links to other related datasets.

Lichess (, ) is an Internet chess server that is free and open-source, run by a non-profit organization of the same name. Users of the site can play online chess anonymously and optionally register an account to play games to earn a rating on Lichess. Lichess is ad-free and all the features are available for free, as the site is funded by donations from patrons, who receive a special badge as thanks for their support. Features include chess puzzles, computer analysis, tournaments and chess variants.

open source data stream processing platform

open-source data analytics cluster computing framework

NetLogo is an open-source programming language and integrated development environment (IDE) for agent-based modeling. It is part of a family of agent-based modeling products, which includes NetLogo Web, NetLogo 3D, NetTango, TurtleUniverse, HubNet, HubNet Web, and BehaviorSpace. It is currently being maintained by the Center for Connected Learning and Computer-Based Modeling (CCL) at the School of Education and Social Policy (SESP), Northwestern University.

Open-source web framework written in Scala

free web application framework

open-source build software for Scala and Java projects

open-source distributed stream processing

programming language and integrated development environment (IDE) for computer programming and learning

graph traversal language