Repositories list

• frontend

  Public

  codecrafters-io/frontend’s past year of commit activity
  Rebuild complex systems from scratch

  emberprogramming-challenges

  TypeScript

  •

  Other

  •28•99•11•32•Updated Dec 16, 2025Dec 16, 2025

• build-your-own-http-server

  Public

  codecrafters-io/build-your-own-http-server’s past year of commit activity
  Definition for the http-server challenge.

  Shell

  •

  MIT License

  •32•112•2•1•Updated Dec 16, 2025Dec 16, 2025

• language-templates

  Public

  codecrafters-io/language-templates’s past year of commit activity
  Dockerfile

  •7•4•0•1•Updated Dec 16, 2025Dec 16, 2025

• language-dashboard

  Public

  codecrafters-io/language-dashboard’s past year of commit activity
  Language dashboard for CodeCrafters challenges.

  Python

  •

  MIT License

  •3•13•0•0•Updated Dec 16, 2025Dec 16, 2025

• build-your-own-interpreter

  Public
  Definition for the interpreter challenge.

  Shell

  •

  MIT License

  •16•48•1•4•Updated Dec 16, 2025Dec 16, 2025

• build-your-own-redis

  Public

  codecrafters-io/build-your-own-redis’s past year of commit activity
  Definition for the redis challenge.

  Shell

  •

  MIT License

  •65•267•0•2•Updated Dec 16, 2025Dec 16, 2025

• build-your-own-bittorrent

  Public

  codecrafters-io/build-your-own-bittorrent’s past year of commit activity
  Definition for the bittorrent challenge.

  C++

  •

  MIT License

  •18•79•1•3•Updated Dec 16, 2025Dec 16, 2025

• build-your-own-sqlite

  Public

  codecrafters-io/build-your-own-sqlite’s past year of commit activity
  Definition for the sqlite challenge.

  Shell

  •

  MIT License

  •31•120•1•2•Updated Dec 16, 2025Dec 16, 2025

• build-your-own-shell

  Public

  codecrafters-io/build-your-own-shell’s past year of commit activity
  Definition for the shell challenge.

  Shell

  •

  MIT License

  •15•33•0•3•Updated Dec 16, 2025Dec 16, 2025

• grep-tester

  Public

  codecrafters-io/grep-tester’s past year of commit activity
  Go

  •3•2•0•1•Updated Dec 15, 2025Dec 15, 2025

• build-your-own-grep

  Public

  codecrafters-io/build-your-own-grep’s past year of commit activity
  Definition for the grep challenge.

  Shell

  •

  MIT License

  •14•26•0•2•Updated Dec 15, 2025Dec 15, 2025

• redis-tester

  Public

  codecrafters-io/redis-tester’s past year of commit activity
  Go

  •19•27•0•4•Updated Dec 15, 2025Dec 15, 2025

• shell-tester

  Public

  codecrafters-io/shell-tester’s past year of commit activity
  Tester for the shell challenge.

  Go

  •5•7•0•5•Updated Dec 15, 2025Dec 15, 2025

• interpreter-tester

  Public

  codecrafters-io/interpreter-tester’s past year of commit activity
  Tester for the interpreter challenge.

  Go

  •5•5•1•1•Updated Dec 12, 2025Dec 12, 2025

• course-sdk

  Public
  A rewrite of course-sdk, with better developer ergonomics

  TypeScript

  •

  MIT License

  •21•76•2•1•Updated Dec 12, 2025Dec 12, 2025

• build-your-own-git

  Public

  codecrafters-io/build-your-own-git’s past year of commit activity
  Definition for the git challenge.

  Shell

  •

  MIT License

  •23•127•4•6•Updated Dec 11, 2025Dec 11, 2025

• tester-utils

  Public

  codecrafters-io/tester-utils’s past year of commit activity
  Go

  •

  MIT License

  •5•2•0•1•Updated Dec 11, 2025Dec 11, 2025

• sqlite-tester

  Public

  codecrafters-io/sqlite-tester’s past year of commit activity
  Go

  •6•9•0•2•Updated Dec 10, 2025Dec 10, 2025

• build-your-own-dns-server

  Public

  codecrafters-io/build-your-own-dns-server’s past year of commit activity
  Definition for the dns-server challenge.

  Shell

  •

  MIT License

  •13•21•2•2•Updated Dec 9, 2025Dec 9, 2025

• test-runner-builder

  Public
  Ruby

  •1•2•0•1•Updated Nov 30, 2025Nov 30, 2025

• cli

  Public

  codecrafters-io/cli’s past year of commit activity
  CodeCrafters CLI to run tests

  Go

  •

  MIT License

  •10•17•7•1•Updated Nov 26, 2025Nov 26, 2025

• docs

  Public

  codecrafters-io/docs’s past year of commit activity
  Documentation for codecrafters users and contributors

  Ruby

  •18•18•1•0•Updated Nov 24, 2025Nov 24, 2025

• build-your-own-kafka

  Public
  Definition for the kafka challenge.

  Shell

  •

  MIT License

  •11•35•0•7•Updated Nov 24, 2025Nov 24, 2025

• git-tester

  Public

  codecrafters-io/git-tester’s past year of commit activity
  Go

  •9•10•0•6•Updated Nov 19, 2025Nov 19, 2025

• llm-rules-test

  Public

  codecrafters-io/llm-rules-test’s past year of commit activity
  Custom runner for LLM rules that help validate stage instructions

  TypeScript

  •1•1•0•0•Updated Nov 19, 2025Nov 19, 2025

• stagegen

  Public

  codecrafters-io/stagegen’s past year of commit activity
  TypeScript

  •1•1•0•0•Updated Nov 16, 2025Nov 16, 2025

• bittorrent-tester

  Public
  Tester for the "Build your own BitTorrent" challenge

  Go

  •4•5•0•0•Updated Nov 16, 2025Nov 16, 2025

• homebrew-tap

  Public
  Homebrew Tap

  Ruby

  •

  MIT License

  •1•1•0•0•Updated Nov 4, 2025Nov 4, 2025

• dns-server-tester

  Public

  codecrafters-io/dns-server-tester’s past year of commit activity
  Tester for the dns-server challenge.

  Go

  •4•5•0•0•Updated Oct 31, 2025Oct 31, 2025

• http-server-tester

  Public
  Go

  •6•11•0•1•Updated Oct 31, 2025Oct 31, 2025