[Submit tutorial]

• Build your own 3D Renderer
  • C++: Introduction to Ray Tracing: a Simple Method for Creating 3D Images
  • C++: How OpenGL works: software rendering in 500 lines of code
  • Java + JavaScript: Build your own 3D renderer
  • Java: How to create your own simple 3D render engine in pure Java

Build your own Blockchain / Cryptocurrency

• Build your own Blockchain / Cryptocurrency
  • ATS: Functional Blockchain
  • Ethereum: From “What is Blockchain?” to building a blockchain in less than an hour
  • Java: Creating Your First Blockchain with Java
  • JavaScript: A cryptocurrency implementation in less than 1500 lines of code
  • JavaScript: Build your own Blockchain in Javascript
  • JavaScript: Learn & Build a Javascript Blockchain
  • Go: Building Blockchain in Go
  • Python: Learn Blockchains by Building One
  • Python: Build your own blockchain: a Python tutorial
  • TypeScript: Naivecoin: a tutorial for building a cryptocurrency

* Build your own **Bot** [🔗](#bot) * [**Haskell**: *Roll your own IRC bot*](https://wiki.haskell.org/Roll_your_own_IRC_bot) * [**Node.js**: *Creating a Simple Facebook Messenger AI Bot with API.ai in Node.js*](https://tutorials.botsfloor.com/creating-a-simple-facebook-messenger-ai-bot-with-api-ai-in-node-js-50ae2fa5c80d) * [**Node.js**: *Why you should have your own Twitter bot, and how to build one in less than 30 minutes*](https://medium.freecodecamp.org/easily-set-up-your-own-twitter-bot-4aeed5e61f7f) * [**Node.js**: *How to make a responsive telegram bot*](https://www.sohamkamani.com/blog/2016/09/21/making-a-telegram-bot/) * [**Node.js**: *Create a Discord bot*](https://discordjs.guide/) * [**PHP**: *Let’s write a cryptocurrency bot*](https://medium.com/@joeldg/an-advanced-tutorial-a-new-crypto-currency-trading-bot-boilerplate-framework-e777733607ae) * [**Python**: *Step-by-Step Instructions for Building a Basic Facebook Chat Bot*](https://blog.hartleybrody.com/fb-messenger-bot/) * [**Python**: *Build a Reddit Bot*](http://pythonforengineers.com/build-a-reddit-bot-part-1/) * [**Python**: *How To Make A reddit Bot*](https://www.youtube.com/watch?v=krTUf7BpTc0) [video] * [**Python**: *How To Create a Telegram Bot Using Python*](https://khashtamov.com/en/how-to-create-a-telegram-bot-using-python/) * [**Python**: *Create a Twitter Bot in Python Using Tweepy*](https://medium.freecodecamp.org/creating-a-twitter-bot-in-python-with-tweepy-ac524157a607) * [**R**: *Build A Cryptocurrency Trading Bot with R*](https://towardsdatascience.com/build-a-cryptocurrency-trading-bot-with-r-1445c429e1b1) * Build your own **Database** [#](#database) * [**C**: *Let's Build a Simple Database*](https://cstack.github.io/db_tutorial/) * [**C++**: *Implementing a Key-Value Store*](http://codecapsule.com/2012/11/07/ikvs-implementing-a-key-value-store-table-of-contents/) * [**C#**: *Build Your Own Database*](https://www.codeproject.com/Articles/1029838/Build-Your-Own-Database) * [**Clojure**: *An Archaeology-Inspired Database*](http://aosabook.org/en/500L/an-archaeology-inspired-database.html) * [**JavaScript**: *Dagoba: an in-memory graph database*](http://aosabook.org/en/500L/dagoba-an-in-memory-graph-database.html) * [**Python**: *DBDB: Dog Bed Database*](http://aosabook.org/en/500L/dbdb-dog-bed-database.html) * Build your own [**Front-end Framework** / **Library**](#frontend) * [**JavaScript**: *A DIY guide to build your own React*](https://github.com/hexacta/didact) * [**JavaScript**: *Reverse Engineering React*](https://vimeo.com/album/3930691) * [**JavaScript**: *Building React From Scratch*](https://www.youtube.com/watch?v=_MAD4Oly9yg) [video] * [**JavaScript**: *Building Your Own React Clone in Five Easy Steps*](https://blog.javascripting.com/2016/10/05/building-your-own-react-clone-in-five-easy-steps/) * [**JavaScript**: *Build your own Vuejs*](https://github.com/jsrebuild/build-your-own-vuejs) * [**JavaScript**: *Build Yourself a Redux*](https://zapier.com/engineering/how-to-build-redux/) * [**JavaScript**: *Let’s Write Redux!*](https://www.jamasoftware.com/blog/lets-write-redux/) * [**JavaScript**: *Redux: Implementing Store from Scratch*](https://egghead.io/lessons/react-redux-implementing-store-from-scratch) * [**JavaScript**: *Build Your own Simplified AngularJS in 200 Lines of JavaScript*](https://blog.mgechev.com/2015/03/09/build-learn-your-own-light-lightweight-angularjs/) * [**JavaScript**: *How to write your own Virtual DOM*](https://medium.com/@deathmood/how-to-write-your-own-virtual-dom-ee74acc13060)

Build your own Docker

• C: Linux containers in 500 lines of code
• Go: Building a container from scratch in Go [video]
• Python: A workshop on Linux containers: Rebuild Docker from Scratch
• Python: A proof-of-concept imitation of Docker, written in 100% Python
• Shell: Docker implemented in around 100 lines of bash

Build your own Game

• C: Handmade Hero

• C: How to Program an NES game in C

• C: Chess Engine In C [video]

• C: Let's Make: Dangerous Dave [video]

• C: Learn Video Game Programming in C [video]

• C: Coding A Sudoku Solver in C [video]

• C: Coding a Rogue/Nethack RPG in C [video]

• C: Tutorial For a Brickout Clone

• C: A tutorials for a basic Invaders game made in C with GTK: and OpenGL

• C: Astroids Tutorial written in C using GTK with OpenGL and DashGL for matrix manipulation

• C++: How To Make Minecraft in C++/ OpenGL [video]

• C++: Breakout

• C++: Beginning Game Programming v2.0

• C#: Learn C# by Building a Simple RPG

• C#: Creating a Roguelike Game in C#

• JavaScript: 2D breakout game using Phaser

• JavaScript: How to Make Flappy Bird in HTML5 With Phaser

• Lua: BYTEPATH

• Ruby: Write Yourself a Roguelike

• Ruby: Developing Games With Ruby

• Build your own Git

  • JavaScript: Gitlet
  • JavaScript: Build GIT - Learn GIT
  • Python: Just enough of a Git client to create a repo, commit, and push itself to GitHub
  • Ruby: Rebuilding Git in Ruby

• Build your own Neural Network

  • C#: Neural Network OCR
  • Go: Build a multilayer perceptron with Golang
  • Go: How to build a simple artificial neural network with Go
  • Go: Building a Neural Net from Scratch in Go
  • Java: Neural Networks: Perceptron [video]
  • JavaScript: Neural Network implementation in Javascript, by an example
  • JavaScript: Neural networks from scratch for Javascript linguists (Part1 — The Perceptron)
  • JavaScript: You can build a neural network in JavaScript even if you don’t really understand neural networks
  • JavaScript: How to create a Neural Network in JavaScript in only 30 lines of code
  • Python: Optical Character Recognition (OCR)

• Build your own Network Stack

  • C: Beej's Guide to Network Programming
  • C: Let's code a TCP/IP stack
  • Ruby: How to build a network stack in Ruby

• Build your own Operating System

  • Assembly: Writing a Tiny x86 Bootloader
  • C: Operating Systems: From 0 to 1
  • C: The little book about OS development
  • C: Kernel 101 –Let’s write a Kernel
  • C: Build a minimal multi-tasking kernel for ARM from scratch
  • C: How to create an OS from scratch
  • C: Malloc tutorial
  • C: Hack the virtual memory
  • C++: Writing a Bootloader
  • Rust: Writing an OS in Rust

• Build your own Programming Language

  • C: Crafting interpreters: A handbook for making programming languages
  • C: Baby's First Garbage Collector
  • C: Build Your Own Lisp: Learn C and build your own programming language in 1000 lines of code
  • C: Implement a minimal interpreter, Compiler (x86/Arm) and JIT compiler from scratch
  • C: Writing a Simple Garbage Collector in C
  • C++: Writing Your Own Toy Compiler Using Flex
  • Go: Lexical Scanning in Go [video]
  • Haskell: Let's Build a Compiler
  • Haskell: Write You a Haskell
  • JavaScript: The Super Tiny Compiler
  • OCaml: Writing a C Compiler
  • Racket: Beautiful Racket: How to make your own programming languages with Racket
  • Ruby: A Compiler From Scratch
  • Python: A Python Interpreter Written in Python
  • Python: lisp.py: Make your own Lisp interpreter
  • Python: Simple Iterator-based Parsing
  • Python: Simple Top-Down Parsing in Python

• Build your own Regex Engine

  • C: A Regular Expression Matcher
  • C: Regular Expression Matching Can Be Simple And Fast
  • JavaScript: Build a Regex Engine in Less than 40 Lines of Code
  • Perl: How Regexes Work
  • Scala: No Magic: Regular Expressions

• Build your own Shell

  • C: Tutorial - Write a Shell in C
  • C: Let's build a shell!
  • C: Writing a UNIX Shell - Part I
  • Ruby: A Unix Shell in Ruby

• Build your own Template Engine

  • JavaScript: JavaScript template engine in just 20 lines
  • Python: Approach: Building a toy template engine in Python
  • Python: A Template Engine
  • Ruby: How to write a template engine in less than 30 lines of code

• Build your own Web Server

  • C#: Writing a Web Server from Scratch
  • Node.js: Let's code a web server from scratch with NodeJS Streams
  • PHP: Writing a webserver in pure PHP
  • Python: A Simple Web Server
  • Python: Let’s Build A Web Server.
  • Python: Web application from scratch
  • Python: Building a basic HTTP Server from scratch in Python
  • Ruby: Building a simple websockets server from scratch in Ruby

• Uncategorized

  • Alloy: The Same-Origin Policy
  • C: Build Your Own Text Editor
  • C: How to Write a Video Player in Less Than 1000 Lines
  • C: Learn how to write a hash table in C
  • C++: Build your own VR headset for $100
  • C++: How to write an emulator (CHIP-8 interpreter)
  • C++: Writing a Linux Debugger
  • C++: How a 64k intro is made
  • Go: Build a web application in Go
  • Java: Build a Flashlight App [video]
  • JavaScript: Learn JavaScript Promises by Building a Promise from Scratch
  • Python: How to Build a Kick-Ass Mobile Document Scanner in Just 5 Minutes
  • Python: Continuous Integration System
  • Python: Building a Facial Recognition Pipeline with Deep Learning in Tensorflow
  • Python: Recommender Systems in Python: Beginner Tutorial
  • Ruby: A Pedometer in the Real World
  • Rust: Let's build a browser engine

[Submit tutorial]