JavaScript30 is an open source repository created by Wes Bos that provides a 30-day coding challenge to help developers strengthen their vanilla JavaScript skills. It includes starter files and completed solutions for each daily project, covering a wide range of practical exercises like clocks, video players, geolocation apps, and more. The challenge avoids frameworks and libraries, focusing purely on core JavaScript. Each project introduces hands-on coding tasks that reinforce DOM manipulation, events, APIs, and browser features. The repository also encourages learners to share their own solutions and improvements, fostering a strong community around the challenge. With its incremental structure, it’s a popular resource for building confidence and fluency in JavaScript.

Features

  • 30-day coding challenge with 30 unique projects
  • Pure JavaScript without frameworks or libraries
  • Starter files and completed solutions provided
  • Covers DOM manipulation, events, and browser APIs
  • Encourages community contributions and variations
  • Practical projects for real-world coding practice

Project Samples

Project Activity

See All Activity >

Categories

Education

Follow JavaScript30

JavaScript30 Web Site

Other Useful Business Software
Create stunning, professional email signatures in minutes Icon
Create stunning, professional email signatures in minutes

For companies looking to create, assign and manage all their employees email signatures and add targeted marketing banners.

Create, assign and manage all your employees’ email signatures and add targeted marketing banners. Stop getting worked up about your signatures! Leverage a centralized interface to easily create and manage the email signatures of all your employees. Take advantage of each email to broadcast and amplify your brand. Letsignit helps you regain control over your digital identity. Harmonize 100% of your employee’s email signatures in just a few clicks! 121 professional emails are received and 40 are sent every day by an employee. With Letsignit, turn every email into a powerful communication opportunity: send the right message to the right person at the right time! Innovative more than tech, inspiring more than following. Authentic more than overrated, close more than "think big", trustworthy more than doubtful. Hands-on more than complex, available but yet premium, fun but yet expert.
Learn More
Rate This Project
Login To Rate This Project

User Reviews

Be the first to post a review of JavaScript30!

Additional Project Details

Operating Systems

Linux, Mac, Windows

Programming Language

JavaScript

Related Categories

JavaScript Education Software

Registered

2025-09-25