My C compiler compiled itself
One of the most challenging projects of my life :)
My C compiler compiled itself launched on December 3, 2024 with 275 votes, #122 of 5,365 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 1 year on.
In plain words
My C Compiler Compiled Itself is a personal programming project where the creator successfully built a C compiler capable of compiling its own source code. This represents a significant technical milestone in compiler development, as self-hosting compilers demonstrate that the implementation is sufficiently complete and robust to handle complex code. The project is shared on GitHub and represents a substantial achievement in systems programming.
written from the facts on this page · September 2026
From the sources
30 C Compiler. Contribute to keyvank/30cc development by creating an account on GitHub.
30cc (Pronounced as CCC , because in the Persian language, the number 30 is pronounced as C) is a toy C compiler written in C, which is strong enough to compile itself 🤝 This was my first attempt in writing a self-hosting software! What is a self-hosting software? 30cc emits x86-64 assembly as its output. The outputs are totally unoptimized, but that's fine, the project aims to be educational. Bootstrap the compiler by running make . This will generate 3 different versions of 30cc compiler: make run program=./examples/inp.c arguments=something Contribute Tests To run tests use python scripts/test.py update Then check the output of the tests. If you are on mac use ./scripts/test_mac.sh to…from github.com
Does a similar job
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My own C compiler (just for fun)2016 · github.com · ▲175rcor C compiler (under development). Contribute to rcorcs/rcc development by creating an account on GitHub.
Self Hosting C Compiler2022 · github.com · ▲5This is my hobby C compiler project. Decided to publish the code today, as it finally compiled itself. The readme on the linked GitHub page has a bit of information on how it works. I wrote the thing for fun, but if anyone gets a better understanding of the dark corners of C because of it, I am happy.
A work-in-progress C compiler from scratch2021 · github.com · ▲159Programming language that compiles into a x86 ELF executable. - riicchhaarrd/ocean
How to write a tiny compiler2017 · blog.klipse.tech · ▲224Write your own compiler: introduction. Code genetation. AST. Abstract syntax tree. lisp. javascript.
ShivyC – Hobby C compiler created in Python2018 · github.com · ▲120C compiler created in Python. Contribute to ShivamSarodia/ShivyC development by creating an account on GitHub.
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