Do you speak JavaScript? Alternatives

Prove your Brains, Brawn, and Bytes!

Check your knowledge by having fun.

Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.

Try for free Open Source freemium

Challenge your friends and improve your SaaS knowledge

Learn JavaScript with guided tests and flashcards

A free resource for learning and developing in JavaScript

The lightest and the most complete javascript date picker

Turn blogs and videos into quizzes in one click

A full list of JavaScript operators with examples

A collection of AI-powered JavaScript apps

Spaced Repetition Software for iOS. Modern, powerful and easy to use.

Learn programming with a multiplayer live coding strategy game.

Adaface offers an AI-powered method to automate first-round tech interviews and evaluate candidates for technical roles. Every Adaface assessment is tailored to each job description, to test for the skills that are essential to the job.

Find the performance impact of adding a npm package to your bundle.