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Cleankata
Clean, Code through interactive refactoring, katas, Master
Stop reading about Clean Code and start writing it. We’ve all read the books, but applying SOLID principles or DRY in real-world messy code is a different story. Cleankata is an interactive platform designed to bridge that gap. Why Cleankata? Hands-on practice. Curated Katas: Exercises focused on specific smells (long methods, primitive obsession, nested conditionals). Instant feedback: See how your changes improve code maintainability and readability.
Hi everyone! I’m the creator of Cleankata.
I built this project because I noticed a common pattern in our industry: many of us read books like "Clean Code" or "The Pragmatic Programmer", but when we face a messy, real-world legacy file, we don't always know where to start.
Theory is great, but refactoring is a muscle that needs to be trained.
Cleankata is my attempt to create a "gym" for developers. A place where you can:
Get your hands dirty with real refactoring exercises.
Internalize SOLID and DRY principles by actually applying them.
Level up your code quality without the fear of breaking a production environment.
The platform is completely free and I’m constantly working on new katas. I’d love to hear your thoughts:
Which refactoring patterns would you like to see next?
Is the difficulty level right for you?
I’ll be here all day to answer your questions and chat about code quality. Thanks for checking it out!
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About Cleankata on Product Hunt
“ Clean, Code through interactive refactoring, katas, Master”
Cleankata was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #140 on the daily leaderboard. Stop reading about Clean Code and start writing it. We’ve all read the books, but applying SOLID principles or DRY in real-world messy code is a different story. Cleankata is an interactive platform designed to bridge that gap. Why Cleankata? Hands-on practice. Curated Katas: Exercises focused on specific smells (long methods, primitive obsession, nested conditionals). Instant feedback: See how your changes improve code maintainability and readability.
Cleankata was featured in Web App (122.2k followers), Education (78.6k followers) and Developer Tools (513k followers) on Product Hunt. Together, these topics include over 132.9k products, making this a competitive space to launch in.
Who hunted Cleankata?
Cleankata was hunted by Fernando Sánchez. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Fernando Sánchez