GridDB is a next-generation open source database
Positron, a next-generation data science IDE
Toolkit for working with and mapping geospatial data
Memory optimized analytics database, based on Apache Spark
Active, high-performance open source database middleware
sparse and dense matrix, linear algebra, visualization, big data
a dbms for neural nets. Chatbots, DTrees, random forests, n-grams,...
Big Sack: A lightweight Java Key/Value store with undo and disk cache.
Fast customizable time series web database for big data like log files