Integrated Development Environment (IDE) for learning HDL
Smart GUI/Commandline tools to create IP-XACT( 2009/2014) files
Best in class SoC Integration Platform, IP-XACT, Verilog VHDL, UPF
A Toolkit for Designing Computers
FFT co-processor in Verilog based on the KISS FFT
An HDL alternative to PCB graphical schematic capture tools.
Open Source Hardware For Industrial Automation
Bluespec SystemVerilog Eclipse Plugin
VHDL Design Tool - code generation and project management