Exercism

Websites like Exercism

• 

  Coddy

  Bite-sized interactive coding lessons in Python, JavaScript, SQL and more, with a daily challenge to keep the habit.

  • Learn
  • Freemium
  • coddy.tech
• 

  Chemical Equations Online

  Type the reactants and it predicts the products and balances the equation, with the steps shown.

  • Learn
  • Free
  • chemequations.com
• 

  Entertrained

  Practise typing by retyping classic novels page by page, so your speed drills double as reading time.

  • Learn
  • Free
  • entertrained.app
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  keybr.com

  Typing lessons that adapt to the keys you're worst at, generating pronounceable nonsense words until your weakest fingers catch up.

  • Learn
  • Free
  • keybr.com
• 

  Symbolab

  Type in an equation, integral or proof and get the solution worked through step by step.

  • Learn
  • Freemium
  • symbolab.com
• 

  VisuAlgo

  Step through sorting, graphs, trees and other data structures as animations, built by a university to teach algorithms.

  • Learn
  • Free
  • visualgo.net