Modernizr vs Blockly: What are the differences?

What is Modernizr? Respond to your user’s browser features. It’s a collection of superfast tests or detects as we like to call them which run as your web page loads, then you can use the results to tailor the experience to the user. It tells you what HTML, CSS and JavaScript features the user’s browser has to offer.

What is Blockly? A library that adds a visual code editor to web and mobile apps. It is a client-side library for the programming language JavaScript for creating block-based visual programming languages and editors. It is a project of Google and is free and open-source software.

Modernizr and Blockly are primarily classified as "JavaScript Compilers" and "Javascript Utilities & Libraries" tools respectively.

Some of the features offered by Modernizr are:

• Easy to deliver tiered experiences
• Make use of the latest and greatest features in browsers
• Without leaving less fortunate users high and dry.

On the other hand, Blockly provides the following key features:

• Pure JavaScript library
• 100% client side. No server side dependencies
• Compatible with all major browsers: Chrome, Firefox, Safari, Opera, and IE

Modernizr and Blockly are both open source tools. It seems that Modernizr with 23.9K GitHub stars and 3.04K forks on GitHub has more adoption than Blockly with 6.84K GitHub stars and 2.37K GitHub forks.