CodeCrafters
No written verdict yet. Here is what commenters said.
6recommend
0warn against
Dec 13, 2025first mention
Jul 16, 2026latest mention
Why people recommend it
“The build your own Claude Code track on Codecrafters is free while in beta.”
“https://app.codecrafters.io/catalog”
Show 3 more
“There's a very good exercise on Codecrafters”
“CodeCrafters has an amazing "Build your own Git" [1] tutorial too.”
“It's a paid platform, but they give you a basic walk through of different technologies, with full test suites.”
Caveats and dissent
No one in these comments warned against it.
From the makers not counted in the ranking
“we (CodeCrafters) built a coding challenge as a companion to this book”
Threads where it came up
- Claude Code sends 33k tokens before reading the prompt; OpenCode sends 7k 1 mention
- Show HN: Learn by rebuilding Redis, Git, a database from scratch 1 mention
- Building a Shell 1 mention
- I made my own Git 1 mention
- Crafting Interpreters 1 mention
- Ask HN: What skills do you want to develop or improve in 2026? 1 mention
Also written as Codecrafters. Data: codecrafters.json. Quotes are verbatim; the verdict and theme labels are written by a model from these comments, and every clause links to its sources.
All comments 6
“The build your own Claude Code track on Codecrafters is free while in beta.”
“https://app.codecrafters.io/catalog”
“There's a very good exercise on Codecrafters”
“CodeCrafters has an amazing "Build your own Git" [1] tutorial too.”
“It's a paid platform, but they give you a basic walk through of different technologies, with full test suites.”
“lists like these [3] or codecrafters [4]”