Growth · alternatives · 2026
24 alternatives to Free C course called "C Systems Lab"
C Systems Lab is a free interactive web course that walks through 10 modules of systems programming in C: compilation, pointers, dynamic memory, structs, the preprocessor, file I/O, processes and signals, sockets, concurrency, and a tour below C. The free course itself is the link. Get the free sample of the PDF by adding "/demo" to the link. Since I don't necessarily like the paywall aspect of it, you may ask me for the complete edition by reaching out via email. Happy to answer questions about the content or the curriculum design.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1LC
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 →
- 2GI
Hi all! I'm going into my freshman year, and figured that the best way to prepare for the intro to programming Racket course would be to implement my own garbage-collected, dynamically typed, functional programming language in C ;) Anyways... here's the repo: https://github.com/liam-ilan/crumb I started learning C over the summer, so I still have a whole lot to learn... Any feedback would be greatly appreciated! :D
2023 · its alternatives →
- 3IM
2022 · networksfromscratch.com · its alternatives →
- 4
Introduction to UDP: sockets, frames, and data encoding. We build a Rust client for a simple name server that converts domain names into IP addresses.
2020 · lowlvl.org · its alternatives →
- 5
Seven modules teaching C the way safety-critical systems are actually built: MATH → STRUCT → CODE → TEST. Each module answers one question: Does it exist? (Pulse), Is it normal? (Baseline), Is it regular? (Timing), Is it trending? (Drift), Which sensor to trust? (Consensus), How to handle overflow? (Pressure), What do we do about it? (Mode). Every module is closed (no dependencies), total (handles all inputs), deterministic, and O(1). 83 tests passing. Built this after 30 years in UNIX systems. Wanted something that teaches the rigour behind certified systems without requiring a decade of…
Jan 2026 · github.com · its alternatives →
- 6
Learn the foundations to be a full stack software engineer. 100% free.
2020 · c0d3.com · its alternatives →
- 7YF
Cut to the chase: https://www.youtube.com/watch?v=4nyzl3pVXp4 I really am a big supporter of quality education being available for everyone, and because of that I've opted to open source my CS education on YouTube. I'm starting with Rails, and I will eventually work around to more core CS topics like circuits -> logic gates -> binary -> assembly -> c -> Data Structures -> Algorithms etc. If you like it subscribe and I'm looking for all the feedback I can get on how to make it better :)
2015 · its alternatives →
- 8
rcor C compiler (under development). Contribute to rcorcs/rcc development by creating an account on GitHub.
2016 · github.com · its alternatives →
- 9
minimal freestanding C library for bare-metal i386 development - marssaxman/startc
2015 · github.com · its alternatives →
- 10WT
2011 · curiousreef.com · its alternatives →
- 11
A C interpreter and API explorer. Contribute to hexagonal-sun/bic development by creating an account on GitHub.
2019 · github.com · its alternatives →
- 12
Lambda School▲238A full Computer Science education - free until you get a job
2017 · bloomtech.com · its alternatives →
- 13
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 →
- 14
Get it from here: https://github.com/c3lang/c3c In 2019, while contributing to the C2 language, I started up "C3" as a pet project while waiting for pull requests to be approved... Now it's 6 years later and C3 well on its way to 1.0, having released 0.7.0 last week. Unlike other C alternatives, C3 tries to evolve C – but without concern to backwards compatibility to the latter. What it adds to C is among other things: - Module system - Semantic macros and compile time introspection - Lightweight generic modules - Zero overhead errors - Build-in slices and SIMD types -…
2025 · github.com · its alternatives →
- 15
Simple, zero-dependency garbage collection for C. Contribute to mkirchner/gc development by creating an account on GitHub.
2019 · github.com · its alternatives →
- 16
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 →
- 17
A small C compiler. Contribute to rui314/chibicc development by creating an account on GitHub.
2020 · github.com · its alternatives →
- 18
Pure C implementation of Go channels. Contribute to tylertreat/chan development by creating an account on GitHub.
2014 · github.com · its alternatives →
- 19
Programming language that compiles into a x86 ELF executable. - riicchhaarrd/ocean
2021 · github.com · its alternatives →
- 20MP
I have been working on this game somewhat sparsely for the past three years or so. However, it is still in a very early stage, and there is a lot of work to do. One of my friends encouraged me to post about it here, since he felt people might find interesting how I don’t use any libraries for it. The game can be played on a browser by virtue of WebAssembly. There are native ports using either MiniFB or SDL2, but you have to build those yourself. I decided to write the game in C because I feel like it is a simple language that a lot of people can understand well enough, and I didn’t think I…
2023 · zamfofex.neocities.org · its alternatives →
- 21
A digital logic simulation written in C. Contribute to rzscheck/logic development by creating an account on GitHub.
2020 · github.com · its alternatives →
- 22
CJIT▲83CJIT started as a hobby project around Fabrice Bellard’s tinyCC and slowly grew into something much more practical. It is now a small portable C compiler and runner that works across Linux, macOS, and Windows, can self host, and is packaged as a single executable. What mattered most to me was keeping the barrier to entry low. You can take one small binary, drop it onto a system, and compile or run C code using the libraries already available there, without setting up a full toolchain or installing a large stack of dependencies. I find that useful for quick prototyping, testing, auditing,…
2024 · dyne.org · its alternatives →
- 23DO
2015 · home.ronsor.gq · its alternatives →
- 24
:copyright: Concurrent Programming Library (Coroutine) for C11 - sharow/libconcurrent
2016 · github.com · its alternatives →
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- C0D3 – A free, interactive site to learn coding alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →