Coding challenges for front-end developers.

Codier connects front-end developers to create, share and challenge one another. Browse the wide range of community-made coding challenges or design your own for other to solve. Codier is the perfect place to grow your front-end development skills.

1Find a challenge
2Code your solution
3Share with 20,000+ developers

Create, learn and connect.All in one place.

Code in your browser

Codier’s editor is designed to be simple, intuitive and familiar. Feel at home with our editor and focus on what matters most, creating.

Try out the editor

Learn from others

There are thousands of code creations available for you to learn from. See how others have solved challenges and learn from their approach.

Explore creations

Connect with developers

Codier has a growing community of front-end developers. Connect with others, share your creations and challenge one another.

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Discover challenges.Here are some of our favourites.

There are hundreds of community-made challenges to choose from. Browse the wide range of challenges and find the ones that interest you.

View more challenges

Explore creations.Be inspired and learn from others.

Creations can either be a solution to a challenge or a standalone project. There are thousands of creations available for you to dig into, with varying levels of complexity.

View more creations

Code with ease.Meet the editor.

Codier editor
  • Looks and feels familiar

    Codier’s editor is built with Monaco Editor, the same technology used in VS Code. This means you get some of the nice features you know and love from VS Code.

  • Your preferred languages

    Codier supports the standard front-end languages, including HTML, CSS and JavaScript, as well as preprocessors like Pug, SCSS and LESS.

  • Customise to your liking

    Switch to dark mode, change the font size, indent with tabs or spaces and more.

Try out the editor

What are you waiting for?Find your next challenge.