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Best Productivity ResourcesBy Shushant LakhyaniVerified creator

Web App

Codewars

Sharpen your coding skills with community-made coding challenges.

Visit Codewars4.6

  • Rating

    4.6 / 5

  • Pricing

    Freemium

  • Difficulty

    Intermediate

  • Works on

    Web

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What is Codewars?

Codewars offers thousands of coding challenges called kata in more than 50 languages, ranked by difficulty, so you can practise, compare solutions and climb the leaderboards. Training is free, and the optional Codewars Red subscription removes ads and adds extras such as unlocked solutions.

Pros: what Codewars does well

  • Huge library of challenges
  • Learn from other people's solutions
  • Many languages supported

Cons: where it falls short

  • Ads for free users
  • Some kata are poorly worded

Who Codewars is for

Developers who want short, regular coding practice.

Who can skip it

Complete beginners who need a structured course first.

Codewars alternatives

Not sold on Codewars? These do a similar job, and each card says what it has in common.

All Learning resources

Advent of Code

Focus: coding puzzles. Shares programming and practice with Codewars. A website, not a web app. Free (Codewars: Freemium). Rated 4.8 (Codewars: 4.6).

WebsiteFreeWeb
4.8Visit

CSSBattle

Focus: css and coding game. Shares challenges and practice with Codewars. Free (Codewars: Freemium). Same 4.6 rating.

Web AppFreeWeb
4.6Visit

Codecademy

Focus: courses and python. Shares coding and programming with Codewars. A course, not a web app. Adds iOS and Android. Rated 4.5 (Codewars: 4.6).

CourseFree planWeb, iOS
4.5Visit

Sololearn

Focus: lessons and beginners. Shares coding and programming with Codewars. A course, not a web app. Adds iOS and Android. Rated 4.5 (Codewars: 4.6).

CourseFree planWeb, iOS
4.5Visit

Blockly Games

Focus: coding for kids, puzzles and education. Shares programming with Codewars. Free (Codewars: Freemium). Same 4.6 rating.

Web AppFreeWeb
4.6Visit

Regex Crossword

Focus: regex, puzzles and games. Shares programming with Codewars. Free (Codewars: Freemium). Rated 4.5 (Codewars: 4.6).

Web AppFreeWeb
4.5Visit

Free alternatives to Codewars

Want to spend nothing? These free picks cover similar ground.

100 Exercises To Learn Rust

Focus: rust, course and exercises. Shares programming with Codewars. A course, not a web app. Free (Codewars: Freemium). Rated 4.8 (Codewars: 4.6).

CourseFreeCross-Platform
4.8Visit

JavaScript.info

Focus: javascript, tutorial and web development. Shares programming with Codewars. A course, not a web app. Free (Codewars: Freemium). Rated 4.8 (Codewars: 4.6).

CourseFreeWeb
4.8Visit

Learn Git Branching

Focus: git, version control and tutorial. Shares coding with Codewars. A website, not a web app. Free (Codewars: Freemium). Rated 4.8 (Codewars: 4.6).

WebsiteFreeWeb
4.8Visit

Eloquent JavaScript

Focus: javascript, ebook and exercises. Shares programming with Codewars. A book, not a web app. Free (Codewars: Freemium). Rated 4.7 (Codewars: 4.6).

BookFreeWeb
4.7Visit

Project Euler

Focus: maths, puzzles and problem solving. Shares programming with Codewars. A website, not a web app. Free (Codewars: Freemium). Rated 4.7 (Codewars: 4.6).

WebsiteFreeWeb
4.7Visit

Teach Yourself CS

Focus: computer science, self taught and study plan. Shares programming with Codewars. A website, not a web app. Free (Codewars: Freemium). Rated 4.7 (Codewars: 4.6).

WebsiteFreeWeb
4.7Visit
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