I made a programmable computer from NAND gates

In plain words

NAND is a web-based computer emulator built from NAND gates, created as a year-long hobby project extending the Nand to Tetris course. It includes an IDE, runtime environment, and browser-based interface where users can write and run programs on simulated hardware. The project comes with example programs including 2048 and a genetic algorithm, along with detailed documentation explaining its architecture and implementation.

written from the facts on this page · September 2026

From the sources

NAND is a logic simulator suite made entirely from NAND gates - ArhanChaudhary/NAND

• 
  WIP NandToTetris Emulator in pure C – logic gates to ALU to CPU to PC2024 · github.com · ▲43

  * OPEN TO CONTRIBUTIONS * NandToTetris is a course which has you build a full computer from: Logic gates -> Chips -> RAM -> CPU -> Computer -> Assembler -> Compiler -> OS -> Tetris All this is done via software defined hardware emulation. I'm building an emulator for this entire stack in C. How is my approach different to other projects that build emulators? - No external dependencies (so far) - Start with a single software defined NAND gate in C - EVERYTHING is built from this base chip - Don't use certain programming utilities: boolean logic operators, bitwise logic operators etc Instead…

• 
  My summer project - simulated CPU built from NAND gates2011 · github.com · ▲17

  A simulated CPU built using only NAND gates. Contribute to IsaacLewis/NAND-CPU development by creating an account on GitHub.

• 
  I built a(nother) house optimized for LAN parties2024 · lanparty.house · ▲1,117

  I wasn't quite sure if this qualified as "Show HN" given you can't really download it and try it out. However, dang said[0]: > If it's hardware or something that's not so easy to try out over the internet, find a different way to show how it actually works—a video, for example, or a detailed post with photos. Hopefully I did that? Additionally, I've put code and a detailed guide for the netboot computer management setup on GitHub: https://github.com/kentonv/lanparty Anyway, if this shouldn't have been Show HN, I apologize! [0]…

• IM
  I'm writing an MMORPG game for learning programming2022 · bytelegend.com · ▲229

  Hi, I've been developing an HTML5 MMORPG game where people can submit code to play a game, like collect items, destroy defense towers or kill monsters, etc.. I've been working on this for over 1.5 yrs (all my spare time) and now it's ready for preview, does anyone want to try it out? It's mostly opensource (and the rest will be opensource sooner or later) Please access it with PC, it's an HTML5 game: https://bytelegend.com/ I really want it to expand to more languages, but right now I've only finished Java part. I wonder if anyone can help me with other languages. Besides, I'm…

• 
  I'm open-sourcing my game engine2023 · github.com · ▲318

  Modd.io is a collaborative game editor that runs in browser. It's kind of like Figma for game dev. We made this engine low-code and multiplayer-first, so developeres can quickly prototype casual multiplayer games. I hope some of you guys will find this useful. Would love to hear feedback also. Thank you. Engine Demo: https://www.modd.io

• IM
  I made a browser-based RTS game2022 · battle-of-flags.com · ▲212

  I've posted this game here before, hopefully a repost is fine as the game has changed quite a bit (improved AI, improved mapeditor, much quicker gameplay, etc). Game is based on JavaScript/Canvas and WebSockets. On the browser side the map is pre-rendered (as a background image), just the mobile units/buildings and animations are dynamically rendered. The lobby server is made in node.js, but the game server is C++ for performance reasons (mainly the pathfinding). I found the C++ WebSocket libraries out there to be too difficult to use so I made my own based on the rfc. Overall I…

• 
  /dev/null▲489

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

• 
  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 28d ago · github.com

• 
  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 26d ago · github.com

• 
  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

• 
  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 21d ago · talanoa.email

• 
  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 28d ago · corespeed.io

• 
  Supabase▲2,325

  The Postgres developer platform is now generally available

  Dev tools · 2024 · supabase.com

• 
  Cal.com Platform▲1,601

  Build your pixel-perfect booking experience with Atoms

  Dev tools · 2024 · cal.com

• 
  PaddleBoat▲1,162

  Perfect your sales pitch with realistic AI roleplays

  AI · 2024 · padboat.com

• 
  deco.cx 2.0▲1,078

  Build web apps 10x faster with Deno, JSX, TS & Tailwind

  Dev tools · 2024 · decocms.com

• 
  IXORD AI▲955

  Navigate tasks, ignite creativity

  AI · 2024

• 
  Assista AI▲949

  A central nervous system for all your productivity apps

  AI · 2024 · getassista.com