Dev tools · alternatives · 2026

24 alternatives to A minimal C runtime for Linux i386 and x86_64 in 87 SLOC of C

A minimal C runtime for Linux i386 & x86_64. Contribute to lpsantil/rt0 development by creating an account on GitHub.

rt0 is a minimal C runtime written in 87 lines of code that enables C programs to run on Linux for i386 and x86_64 architectures. It is designed for developers who need a lightweight startup environment for C… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. A minimal C runtime for Linux i386 and x86_64 in 87 SLOC of C launched in 2015; newer entries below may have overtaken it.

1
Tiny C runtime Linux (rt0), HelloWorld 0.6k (i386), sbrk example added▲49
A minimal C runtime for Linux i386 & x86_64. Contribute to lpsantil/rt0 development by creating an account on GitHub.
2015 · github.com · its alternatives →
2
A simple way to write standalone C programs for i386▲147
A simple way to write standalone C programs for i386 - luke8086/boot2c
2019 · github.com · its alternatives →
3
I wrote my own RTS game engine in C▲1,102
An OpenGL RTS game engine written in C. Contribute to eduard-permyakov/permafrost-engine development by creating an account on GitHub.
2021 · github.com · its alternatives →
4
Minimal freestanding C runtime for bare-metal/embedded PC projects▲97
minimal freestanding C library for bare-metal i386 development - marssaxman/startc
2015 · github.com · its alternatives →
5LC
Learn C and its lower levels interactively, in the browser▲356
I made a simple virtual machine that runs C in the browser.This project is made as an experiment to see if C can be learned easier if the lower level is covered in paralel. Sandbox: https://vasyop.github.io/miniC-hosting Tutorial part 1: https://vasyop.github.io/miniC-hosting/?0 More info: https://github.com/vasyop/miniC-hosting/blob/master/README.md Please support this project: https://github.com/vasyop/miniC-hosting/blob/master/support.md
2019 · its alternatives →
6
A minimal stack based VM in C▲60
A minimal stack-based VM. Contribute to codr7/liblg development by creating an account on GitHub.
2020 · github.com · its alternatives →
7
MyraOS – My 32-bit operating system in C and ASM (Hack Club project)▲247
Hi HN, I’m Dvir, a young developer. Last year, I got rejected after a job interview because I lacked some CPU knowledge. After that, I decided to deepen my understanding in the low level world and learn how things work under the hood. I decided to try and create an OS in C and ASM as a way to broaden my knowledge in this area. This took me on the most interesting ride, where I’ve learned about OS theory and low level programming on a whole new level. I’ve spent hours upon hours, blood and tears, reading different OS theory blogs, learning low level concepts, debugging, testing and working on…
Oct 2025 · github.com · its alternatives →
8
Prometeo – a Python-to-C transpiler for high-performance computing▲166
An experimental Python-to-C transpiler and domain specific language for embedded high-performance computing - zanellia/prometeo
2021 · github.com · its alternatives →
9
Runc – Compile and run C in one command▲41
compile/run for the lazy. Contribute to alcover/lacy development by creating an account on GitHub.
2020 · github.com · its alternatives →
10
Xcc700: Self-hosting mini C compiler for ESP32 (Xtensa) in 700 lines▲154
Repo: https://github.com/valdanylchuk/xcc700 Hi Everyone! I just wrote my first compiler! - single pass, recursive descent, direct emission - generates REL ELF binaries, runnable using ESP-IDF elf_loader - very basic features only, just enough for self-hosting - treats the Xtensa CPU as a stack machine for simplicity, no register allocation / window usage - compilable on Mac, probably also Linux, can cross-compile for esp32 there - wrote for fun / cyberdeck project Sample output from esp32: xcc700.elf xcc700.c -o /d/cc.elf [ xcc700 ] BUILD COMPLETED >…
Dec 2025 · github.com · its alternatives →
11
Neco – Coroutine Library for C▲145
Concurrency library for C (coroutines). Contribute to tidwall/neco development by creating an account on GitHub.
2024 · github.com · its alternatives →
12
A small virtual machine written in C▲212
"interesting" VM in C. Let's see how this goes. Contribute to tekknolagi/carp development by creating an account on GitHub.
2014 · github.com · its alternatives →
13
RISC-V core written in 600 lines of C89▲190
32-bit RISC-V CPU in ~800 lines of C89. Contribute to mnurzia/rv development by creating an account on GitHub.
2023 · github.com · its alternatives →
14
A little web server in C▲178
A little web server written in C for Linux. Supports: CGI, Reverse Proxy. Single threaded using I/O multiplexing (select).
2023 · github.com · its alternatives →
15
Vas-quod – A minimal Linux container runtime written in Rust▲110
:aerial_tramway: Minimal linux container runtime. Contribute to flouthoc/vas-quod development by creating an account on GitHub.
2020 · github.com · its alternatives →
16
A work-in-progress C compiler from scratch▲159
Programming language that compiles into a x86 ELF executable. - riicchhaarrd/ocean
2021 · github.com · its alternatives →
17
Minimax – A Compressed-First, Microcoded RISC-V CPU▲171
RISC-V's compressed instruction (RVC) extension is intended as an add-on to the regular, 32-bit instruction set, not a replacement or competitor. Its designers intended RVC instructions to be expanded into regular 32-bit RV32I equivalents via a pre-decoder. What happens if we explicitly architect a RISC-V CPU to execute RVC instructions, and "mop up" any RV32I instructions that aren't convenient via a microcode layer? What architectural optimizations are unlocked as a result? "Minimax" is an experimental RISC-V implementation intended to establish if an RVC-optimized CPU is, in practice, any…
2022 · github.com · its alternatives →
18
C-compiler to compile TCC for live-bootstrap▲67
Investigation into replacing the MES compiler. Contribute to FransFaase/MES-replacement development by creating an account on GitHub.
Dec 2025 · github.com · its alternatives →
19
A “living” Linux process with no memory▲312
A "living" Linux process with no memory. Contribute to izabera/zeromaps development by creating an account on GitHub.
2020 · github.com · its alternatives →
20
Kent Dybvig's Scheme Machine in 400 Lines of C (Heap-Memory Model)▲226
Heap based scheme machine. GitHub Gist: instantly share code, notes, and snippets.
2025 · gist.github.com · its alternatives →
21
ShivyC – Hobby C compiler created in Python▲120
C compiler created in Python. Contribute to ShivamSarodia/ShivyC development by creating an account on GitHub.
2018 · github.com · its alternatives →
22
A pure C89 implementation of Go channels, with blocking selects▲271
A pure C (-std=c89) implementation of Go channels, including blocking and non-blocking selects. - GitHub - rochus-keller/CspChan: A pure C (-std=c89) implementation of Go channels, including blocking and non-blocking selects.
2023 · github.com · its alternatives →
23
Smart pointers for the C programming language▲126
Smart pointers for the (GNU) C programming language - Snaipe/libcsptr
2015 · github.com · its alternatives →
24
I wrote a minimal memory allocator in C▲137
A fun toy memory allocator (not thread safe, that's a future TODO). I also wanted to explain how I approached it, so I also wrote a tutorial blog post (~20 minute read) covering the code which you can find the link to in the README.
Nov 2025 · github.com · its alternatives →

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