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CodeCrafters

Build your own Git, Docker, SQLite, & Redis.

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  1. build-your-own-x build-your-own-x Public

    Master programming by recreating your favorite technologies from scratch.

    Markdown 462k 43.4k

  2. learning-stipends learning-stipends Public

    Companies that support engineers with learning stipends

    370 34

  3. build-your-own-redis build-your-own-redis Public

    Definition for the redis challenge.

    Shell 290 67

  4. build-your-own-sqlite build-your-own-sqlite Public

    Definition for the sqlite challenge.

    Shell 122 31

Repositories

Showing 10 of 133 repositories
  • claude-code-tester Public

    Tester for the claude-code challenge.

    codecrafters-io/claude-code-tester’s past year of commit activity
    Go 0 0 0 1 Updated Jan 29, 2026
  • tester-utils Public
    codecrafters-io/tester-utils’s past year of commit activity
    Go 2 MIT 5 0 1 Updated Jan 29, 2026
  • shell-tester Public

    Tester for the shell challenge.

    codecrafters-io/shell-tester’s past year of commit activity
    Go 7 5 0 6 Updated Jan 29, 2026
  • build-your-own-claude-code Public

    Definition for the claude-code challenge.

    codecrafters-io/build-your-own-claude-code’s past year of commit activity
    Shell 2 MIT 1 0 0 Updated Jan 29, 2026
  • build-your-own-shell Public

    Definition for the shell challenge.

    codecrafters-io/build-your-own-shell’s past year of commit activity
    Shell 35 MIT 17 0 3 Updated Jan 29, 2026
  • frontend Public

    Rebuild complex systems from scratch

    codecrafters-io/frontend’s past year of commit activity
    TypeScript 107 27 4 16 Updated Jan 29, 2026
  • llm-rules-test Public

    Custom runner for LLM rules that help validate stage instructions

    codecrafters-io/llm-rules-test’s past year of commit activity
    TypeScript 1 1 0 0 Updated Jan 29, 2026
  • course-sdk Public

    A rewrite of course-sdk, with better developer ergonomics

    codecrafters-io/course-sdk’s past year of commit activity
    TypeScript 80 MIT 22 2 1 Updated Jan 29, 2026
  • language-dashboard Public

    Language dashboard for CodeCrafters challenges.

    codecrafters-io/language-dashboard’s past year of commit activity
    Python 14 MIT 3 0 0 Updated Jan 28, 2026
  • build-your-own-interpreter Public

    Definition for the interpreter challenge.

    codecrafters-io/build-your-own-interpreter’s past year of commit activity
    Shell 49 MIT 17 0 3 Updated Jan 28, 2026