nowfound

Life & fun · alternatives · 2026

IM

24 alternatives to I made my own OS from scratch because I was bored

I've wanted to make my own OS since I started programming. Now, 5 years later, I did it (kind of). Sure, it is really basic, has very little functionality, but I made it and I'm proud of that. Oh, and I'm just 16 btw.

A 16-year-old developer built a basic operating system from scratch after five years of programming work. The OS has minimal functionality but represents a complete personal project created independently. It is… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Hello! I'm Byran. I spent the past ~6 months engineering a laptop from scratch. It's fully open-source on GH at: https://github.com/Hello9999901/laptop

    2025 · byran.ee · its alternatives →

  2. 2

    🌐 The Internet Computer! Free, Open-Source, and Self-Hostable. - HeyPuter/puter

    2024 · github.com · its alternatives →

  3. 3

    Finally got my hobby OS up and running on real hardware. I love the old IBM thinkpads, so thought it was the perfect machine to get it working on. Been working on it for quite some time now, but this has been a big milestone!

    2025 · github.com · its alternatives →

  4. 4
  5. 5

    (Very) basic UNIX-like operating system built when I was younger - SamyPesse/devos

    2013 · github.com · its alternatives →

  6. 6

    A multitasking monolithic Kernel based x86 targeting Operating System written in C# from scratch aiming for high-level implementation of drivers in managed environment. - amaneureka/AtomOS

    2017 · github.com · its alternatives →

  7. 7

    A pretty simple Operating System for my High School Project - aswinmohanme/ultronOS

    2019 · github.com · its alternatives →

  8. 8

    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 →

  9. 9

    This is my operating system that I've been working for the past 2 years. All of the code is written exclusively by me except from ported software. banan-os has a monolithic kernel targeting x86 (i686) and x86_64 architectures. The project consists of bootloader, kernel and userspace libraries (libc, libGUI, libFont, ...). It also uses my custom C++ standard library partly based on stdc++. Currently I have basic TTY and GUI environment with some of the basic UNIX utilities like cp, ls and stat. I have basic support for USB (keyboard/mouse/storage), disks (NVMe, AHCI), custom…

    2024 · github.com · its alternatives →

  10. 10IR

    Years ago I stumbled across a basic version of this concept and it stuck with me. I knew if I was ever going to take on such a project, it would need to be flawless, but without coding experience it was just another idea that would never happen. By the end of 2024, as AI coding tools exploded everywhere, I finally had a way to make it real. I started from zero knowledge and spent months collaborating with AI agents as a learning experience. Every pixel and every function went through me. The AI translated what I asked for into code, but every decision was human. I didn't use existing OS…

    2025 · mitchivin.com · its alternatives →

  11. 11

    To try it out, simply build the project yourself from source, or use attached bootable ISO image of the system (in Releases on Github) and run it in QEMU. https://blog.vxn.dev/rou2exos-rusted-edition

    2025 · github.com · its alternatives →

  12. 12

    Hey HN! This is a fun/educational project I built to learn OS programming. I started working on it right after graduating high school last year and have been working on it on and off during my first year of university. It features a TCP/IP stack, an HTTP server, a RAM file system, a BIOS bootloader, paging and memory management, and concurrent tasks based on cooperative scheduling, along with a custom library. It's written in a C programming style focused on safety (based on a custom library of core abstractions) that's inspired by the writing of Chris Wellons (nullprogram.com).…

    2025 · github.com · its alternatives →

  13. 13

    https://lisagui.com/info.html This is a web OS I wrote in vanilla JS that looks like the Apple Lisa Office System (1983-85), with other contemporaneous influences and additional improvements and features. It's currently in alpha and isn't remotely bug free. I had been holding off on posting this here until it was somewhat presentable and useful. Please note; the Lisa conforms more literally to the desktop metaphor than most modern GUIs - some of the important differences are mentioned in the readme. This is a complete recreation of the UI in JS; it all renders to a single…

    2025 · alpha.lisagui.com · its alternatives →

  14. 14

    Developers want $$ but everyone else wants free software...

    2016 · heavybit.com · its alternatives →

  15. 15

    A step-by-step guide how to create a simple OS from scratch.

    2018 · github.com · its alternatives →

  16. 16

    A minimal RISC-V 32-bit OS written in Zig. Contribute to botirkhaltaev/pico-os development by creating an account on GitHub.

    2025 · github.com · its alternatives →

  17. 17

    Hey! I’m JC. I’m 17 and part of Hack Club, a nonprofit where we help teenagers ship programming projects with their friends while growing technically. A while ago, I asked myself the question, “How exactly do programming languages work behind the scenes?” It seemed really daunting until I went to a half hour workshop at a high school hackathon about writing a tree-walk interpreter and realized that getting started was actually super fun. This guide is designed in the vein of that - to get people, especially teenagers, started on learning how to build a programming language in a literal…

    2024 · easel.hackclub.com · its alternatives →

  18. 18

    (sorry about double posting, I forgot to put Show HN in front in the original https://news.ycombinator.com/item?id=43863689 thread) Hey all, As a follow up to my relatively successful series in x86 Assembly of last year[1], I started making an OS that fits in a boot sector. I am purposefully not doing chain loading or multi-stage to see how much I can squeeze out of 510bytes. It comes with a file system, a shell, and a simple process management. Enough to write non-trivial guest applications, like a text editor and even some games. It's a lot of fun! It comes with an SDK and…

    2025 · github.com · its alternatives →

  19. 19IM

    2013 · aeipsapps.tumblr.com · its alternatives →

  20. 20MH

    Nov 2025 · astral-os.org · its alternatives →

  21. 21

    This project contains no code from Linux, BSD, Minix, or any other OS. Everything up until this point is written entirely from scratch, including a pure microkernel (that only implements multiprocessor priority scheduling, memory management, and interprocess communication), a work-in-progress implementation of the standard C library, and a variety of servers that provide drivers and other essential OS functionality. At the time of writing this post, the servers provide drivers for the keyboard, NVMe SSDs (that works on real hardware), a Unix-like virtual file system (with a single root…

    2024 · github.com · its alternatives →

  22. 22

    A game where you play as the computer OS

    2023 · plbrault.itch.io · its alternatives →

  23. 23MO
  24. 24

    A fast and open replacement for Windows and OS X

    2015 · elementary.io · its alternatives →

Also compare

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 →