Berkeley Campus Program

Students, alumni and staff at Berkeley get 1 year of CodeCrafters for free.

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Engineers at top teams love The CodeCrafters Way^TM.

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There are few sites I like as much that have a step by step guide. The real-time feedback is so good, it's creepy!

Ananthalakshmi Sankar

Automation Engineer at Apple

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I love that I don't have to do the tedious work at the start of the project. I can jump in and start building right away.

Jakub Grądcki

Senior Architect at HCLTech

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The Redis challenge was extremely fun. I ended up having to read Redis protocol specification doc pretty carefully in its entirety! The result felt like lightly-guided independent study, if that makes sense. (Which, again, was lots of fun)

Charles Guo

Scala Team at Stripe

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The instant feedback right there in the git push is really cool. Didn't even know that was possible!

Patrick Burris

Senior Software Developer at CenturyLink

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This idea is absolutely stellar. Having a structured project like this feels like a blast.

Joey Pereira

Software Engineer at OpenAI

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I'd recommend CodeCrafters to every curious developer who wants to really understand the tools they use every day.

Albert Salim

Senior Backend Engineer at GitLab

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These guys ruined my weekend

Djordje Lukic (@rumpl)

Full-time Docker contributor

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The Redis challenge was a great way to procrastinate sleeping for a week! A good change of pace from my regular work, and allowed me to explore some cool tech. I'll be back for more.

Rahul Tarak

Pioneer.app & ODX1 Fellow

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I've started the SQLite challenge, enjoying it a lot so far. Just the right level of guidance, helpful yet gives you a lot of freedom to explore and learn for yourself.

Cindy Wu

Participant at Recurse Center

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I was really impressed that they support Haskell, and will probably use this to learn Rust! The git-based workflow is :chefkiss:

Jonathan Lorimer

Lead SWE at Mercury Bank

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I'm learning about how Redis works under the hood, system calls, socket programming in Python — something I've never done before

Akshata Mohan

Senior Data Scientist at Cloudflare

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My favorite way to master a language.

Pranjal Paliwal

$35k winner of HackAtom

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In a perfect world, job interviews ask for assignments like CodeCrafters instead of Leetcode. The best way to refresh your programming language skills and learn something new about Redis, Git, SQLite internals.

Vladislav Ten

Software Engineer at Microsoft

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Trusted by senior engineers at the world's best companies

Trusted by engineers at top companies

Hear it from our members