Top 10 Python Rtl Projects
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openlane
OpenLane is an automated RTL to GDSII flow based on several components including OpenROAD, Yosys, Magic, Netgen and custom methodology scripts for design exploration and optimization.
> no more engineering for engineering’s sake
I'm not sure many successful engineering orgs did much of that but also the environment our creations live in is much different now.
It was a huge task just to get our programs to run at all not very long ago. When I first started coding I was working on some code for a VLSI problem and I spent like a month just figuring out how to get the problem to fit on disk (not main memory, but on disk!). Now there are similar things that run on a laptop [0]. And it's not like I'm unique in having to come up with crazy solutions to problems tangent to the primary problem in this space. [1]
Now the infrastructure for our code is amazing and the machines that execute them abound in resources, especially in the cloud. Now that the yoke has been cast off it makes sense more time is spent on the solution the actual problem you set out to solve in the first place.
[0] https://github.com/The-OpenROAD-Project/OpenLane
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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Salamandra
Salamandra is a tool to find spy microphones that use radio freq to transmit. It uses SDR.
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pymtl3
Pymtl 3 (Mamba), an open-source Python-based hardware generation, simulation, and verification framework
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PyRTL
A collection of classes providing simple hardware specification, simulation, tracing, and testing suitable for teaching and research. Simplicity, usability, clarity, and extensibility are the overarching goals, rather than performance or optimization.
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sphinxcontrib-hdl-diagrams
Sphinx Extension which generates various types of diagrams from Verilog code.
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openENOC
openENOC is an open-source Ethernet-based NoC for scalable MPSoC systems, using Layer-2 frame switching to connect CPUs, accelerators and peripherals for crypto, AI and edge computing.
Project mention: OpenENOC – Scalable Ethernet-Based Network-on-Chip | news.ycombinator.com | 2026-06-28
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Index
What are some of the best open-source Rtl projects in Python? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | openlane | 1,899 |
| 2 | siliconcompiler | 1,199 |
| 3 | Salamandra | 843 |
| 4 | pymtl3 | 463 |
| 5 | PyRTL | 303 |
| 6 | sphinxcontrib-hdl-diagrams | 65 |
| 7 | PyChip-py-hcl | 45 |
| 8 | hwtLib | 45 |
| 9 | fsm2sv | 39 |
| 10 | openENOC | 15 |
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