Amaranth HDL (previously known as nMigen)
A modern hardware definition language and toolchain based on Python
Chisel/FIRRTL Hardware Compiler Framework
A hardware design language that facilitates advanced circuit generation and design reuse for both ASIC and FPGA digital logic designs
migen
A Python toolbox for building complex digital hardware
MyHDL
Python as a hardware description and verification language
nMigen
A refreshed Python toolbox for building complex digital hardware
PipelineC
Open source C-like hardware description language with high-level-synthesis-like automatic pipelining and several other real life design inspired features.
Silice
Silice is an open source language that simplifies writing algorithms fully exploiting FPGA architectures
SpinalHDL
Scala based HDL
