1102 Open source projects that are alternatives of or similar to Reactos

🍬 All-new kernel for @GreenteaOS

A sweet hobby made operating system written in C++ for x86 CPUs with GUI

A completely-from-scratch hobby operating system: bootloader, kernel, drivers, C library, and userspace including a composited graphical UI, dynamic linker, syntax-highlighting text editor, network stack, etc.

NOTICE: The ToaruOS-NIH Project has been MERGED UPSTREAM. This repository is now archived.

RocketOS is a Unix based OS that uses legacy BIOS and GRUB and is written in C17. It is being developed for educational purposes primarily, but it still is a serious project. It is currently in its infancy.

Dennix is a unix-like hobbyist operating system written from scratch.

a little 64bit operating system written in c++ with smp support

Experimental Stand-alone 32-bit Kernel with Bootloader written in AT&T Assembly and Freestanding C

AquilaOS: UNIX-like Operating System

Hobby Operating System

A simple "Unix-like" kernel trying to be POSIX compliant

Kernel for my operating system KoraOS

Microkernel and userspace written in Rust exploring modern ideas

Yet another hobby x86 UNIX-like operating system written in C and C++. Features a dynamically linked userspace, an in-house c standard library, and more! And yes, it runs DOOM.

Technology is free, SnowFlakeOS

An x86_64 hobbyist OS written in C and Assembly

Main kernel tree

A simple OS running on Intel x86 architecture | No longer updating

A community driven OS by the youth

A hobby operating system developed from scratch

A small operating system where I experiment and learn osdev.

Unikraft is an automated system for building specialized POSIX-compliant OSes known as unikernels. (Core repository)

An operating system written in C

Operating system designed to be fast and secure.

(Inactive, Checkout AvanaOS, Rewrite of this) This is a New Operating System (Kernel right now). Made completely from scratch, We aim to make a complete OS for Learning purpose

🍵 Userspace of the @GreenteaOS

Running x86-16 or x86-32 code from x86-64 UEFI; _very experimental_ • mirror of https://gitlab.com/tkchia/biefircate • developer notes at https://gitlab.com/tkchia/biefircate/-/blob/main/doc/NOTES.asciidoc

A simple, clean code, multi-tasking operating system written in pure assembly language for 64-bit processors from the AMD64 family.

Frosted: Free POSIX OS for tiny embedded devices

A hand-made SMP-aware kernel

A toy monolithic kernel written in C++

📚 Learn to write an embedded OS in Rust 🦀

A unix operating system written from scratch in c that gives support for arm, x86

Ghost, a micro-kernel based hobby operating system for the x86 architecture.

A WIP 64-bit UNIX-like kernel

Operating system for x86_64 based around a "keep it simple and make it work" philosophy.

Gramado OS - 32bit operating system

A developing operating system

Hobbyist Operating System targeting x86_64 systems. Includes userspace, Virtual File System, An InitFS (tarfs), Lua port, easy porting, a decent LibC and LibM, and a shell that supports: piping, file redirection, and more.

鸿蒙系统资料。Docs about HarmonyOS.

An operating system written in D

An unix-like toy kernel

libhermit-rs: A Rust-based library operating system

Operating System development experiment in Ada

x86-64 assembly µkernel

My Operating System.

Gitbook: https://mrfearless.gitbooks.io/creating-controls-in-assembler

Nautilus Aerokernel

The operating system written in Rust

A 32bit multiboot OS kernel for IA32 (PC/AT) systems.

Operating System Coded in Assembly and C

The Operating System (for x86_64) written in Crystal as much as possible

A secure, modern and intelligent operative system

Abandoned overcomplicated Microkernel using modern x86_64 features

Simple microkernel (early stage)

x86_64 OS kernel with completely async userspace and single address space [WIP; but basic kernel functionality implemented]

An AArch64 hobbyist OS for the Raspberry Pi 3 B+

A simple hobby operating system for the x86-64 architecture, written in C.

Allows to run Windows CE applications on Windows!

A small kernel + OS based on how dreams work