World's fastest and most advanced password recovery utility

RT-Thread is an open source IoT Real-Time Operating System (RTOS). https://rt-thread.github.io/rt-thread/

A small C compiler

C in four functions

Xv6 for RISC-V

xv6 OS

A low-power E-Paper weather display powered by an ESP32 microcontroller. Utilizes the OpenWeatherMap API.

Write like a high-level language, run like C.

The Fast Lexical Analyzer - scanner generator for lexing in C and C++

LK embedded kernel

Writing an OS in 1,000 lines.

ZSWatch - the Open Source Zephyr™ based Smartwatch, including both HW and FW.

Envision a future where everyone can read all the code of an educational operating system.

FuzixOS: Because Small Is Beautiful

One true awk

A tiny C header-only risc-v emulator.

The Computer History Simulation Project

Lightpack and Prismatik open repository

Simple C compiler

picolibc - a C library designed for embedded 32- and 64- bit systems.

Open source minimal stack for the ch32 and ch5xx WCH RISC-V Microcontrollers

TinyMaix is a tiny inference library for microcontrollers (TinyML).

Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI

A simple, self-hosting C compiler

Test suite to help you write your own C compiler

C11 compiler (mirror)

Arduino library for TinyUSB

A firmware platform aimed at quick prototyping, built around FreeRTOS and a feature-packed CLI

A toy C compiler

Main winflexbision repository