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Top 9 Zig Compiler Projects
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Zig actually bundles LLVM's Clang, which it uses to compile C with the `zig cc` command. But the long term goal seems to not be so tightly coupled to LLVM, so I'm expecting that to move elsewhere. They still do some clever stuff around compiler-rt, allowing it to be better at cross-compilation than raw Clang, but the bulk of it is mostly just Clang.
There is also another C compiler written in Zig, Aro[1], which seems to be much more complete than TFA. Zig started using that as a library for its TranslateC functionality (for translating C headers into Zig, not whole programs) in 0.16.
[1]: https://github.com/Vexu/arocc
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Project mention: Why the push for Agentic when models can barely follow a simple instruction? | news.ycombinator.com | 2025-10-14
> I know I could be eating my words, but there is basically no evidence to suggest it ever becomes as exceptional as the kingmakers are hoping.
??? It has already become exceptional. In 2.5 years (since chatgpt launched) we went from "oh, look how cute this is, it writes poems and the code almost looks like python" to "hey, this thing basically wrote a full programming language[1] with genz keywords, and it mostly works, still has some bugs".
I think the goalpost moving is at play here, and we quickly forget how 1 year makes a huge difference (last year you needed tons of glue and handwritten harnesses to do anything - see aider) and today you can give them a spec and get a mostly working (albeit with some bugs) 50$ later.
[1] - https://github.com/ghuntley/cursed
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ClojureWasm
An independent Clojure runtime implemented in Zig, optimized for high-performance native execution and deep WebAssembly runtime integration.
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flint
A pipeline-oriented system language for robust CLI tools. Transpiles to C99. Built in Zig. (by the-flint-lang)
Project mention: Show HN: Flint – A compiled, pipeline-oriented language for CLI tooling | news.ycombinator.com | 2026-03-15 -
circ-compiler
A small language for building and simulating logic circuits - for people learning how computers work. In the spirit of Nand2Tetris and Petzold's Code.
Project mention: Circ, a DSL for digital circuits with self-rendering ASCII schematics | news.ycombinator.com | 2026-05-13
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).
Zig Compiler discussion
Zig Compiler related posts
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multi_array_list.zig
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Why we're building a Github alternative
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Circ, a DSL for digital circuits with self-rendering ASCII schematics
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The Zig project's rationale for their firm anti-AI contribution policy
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HashiCorp co-founder says GitHub 'no longer a place for serious work'
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Writing a C Compiler, in Zig
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Show HN: Flint – A compiled, pipeline-oriented language for CLI tooling
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A note from our sponsor - SaaSHub
www.saashub.com | 6 Jun 2026
Index
What are some of the best open-source Compiler projects in Zig? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | zig | 43,016 |
| 2 | arocc | 1,716 |
| 3 | cursed | 638 |
| 4 | toy-lang | 596 |
| 5 | LoLa | 235 |
| 6 | Zag-Smalltalk | 156 |
| 7 | ClojureWasm | 104 |
| 8 | flint | 32 |
| 9 | circ-compiler | 3 |
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