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Top 7 Scala Chisel Projects
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Project mention: A 3rd World Embedded Engineer Responds to "RISC-V They Should Have Known Better" | news.ycombinator.com | 2026-08-16
>While the scalar part of OpenXiangShan looks really good, the RVV imolementation is currently basically unusable.
Good news! It seems they just opened a new PR for a new RVV implementation: https://github.com/OpenXiangShan/XiangShan/pull/6331
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AppSignal
AppSignal knows why the f*#k it crashed. Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise.
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Though i guess it is a bit more mature and probably more enterprisey
[1]https://github.com/chipsalliance/chisel
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Project mention: Berkeley Out-of-Order RISC-V Processor (Boom) (2020) | news.ycombinator.com | 2025-10-29
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chipyard
An Agile RISC-V SoC Design Framework with in-order cores, out-of-order cores, accelerators, and more
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Project mention: Berkeley Out-of-Order RISC-V Processor (Boom) (2020) | news.ycombinator.com | 2025-10-29
The latest version seems to be Sonic Boom:
https://github.com/riscv-boom/riscv-boom
But this project seems to have stagnated with one significant commit in the last year.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Scala Chisel discussion
Scala Chisel related posts
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The Sovereign Tech Fund Invests in Scala
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RISC-V is coming along quite speedily: Milk-V Titan Mini-ITX 8-core board
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Berkeley Out-of-Order RISC-V Processor (Boom) (2020)
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GlobalFoundries to Acquire MIPS
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Spade – A work in progress HDL that doesn't make you want to pull your hair out
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Tenstorrent and the State of AI Hardware Startups
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RuyiBook the first laptop powered by a open-source RISC-V processor
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A note from our sponsor - AppSignal
www.appsignal.com | 14 Oct 2026
Index
What are some of the best open-source Chisel projects in Scala? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | XiangShan | 7,295 |
| 2 | chisel | 4,807 |
| 3 | rocket-chip | 3,884 |
| 4 | chipyard | 2,418 |
| 5 | riscv-boom | 2,257 |
| 6 | chiselverify | 163 |
| 7 | chisel-template | 7 |
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Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise.
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