RStudio is an integrated development environment (IDE) for R
A Distributed RESTful Search Engine
Distributed messaging and streaming platform with low latency
High-performance, open source distributed transaction solution
Easy Tools of PDF, Image, File, Network, Data, and Medias
Active, high-performance open source database middleware
Simple open source business intelligence and reporting solution
MapReduce-based tool to remove duplicate DNA reads
Support for manual parallelization of sequential C programs.
Free data acquisition and data visualization cross-platform software
Semi-automated root image analysis software
A tool for visualization and analysis of logs as sequence diagrams
Pentaho Data Integration ( ETL ) a.k.a Kettle
Visually build and simulate boolean logic circuits