Composer vs JSPM: What are the differences?

Developers describe Composer as "Dependency Manager for PHP". Composer is a tool for dependency management in PHP. It allows you to declare the libraries your project depends on and it will manage (install/update) them for you. On the other hand, JSPM is detailed as "Frictionless browser package management". It is a package manager for the SystemJS universal module loader, built on top of the dynamic ES6 module loader. You can load npm packages in modern browsers with the native browser ES module loader.

Composer and JSPM belong to "Package Managers" category of the tech stack.

Composer is an open source tool with 20.5K GitHub stars and 5.56K GitHub forks. Here's a link to Composer's open source repository on GitHub.

Walls.io, Zumba, and Infoshare are some of the popular companies that use Composer, whereas JSPM is used by Permission Click, Sharp Auction Engine, and Flutaro. Composer has a broader approval, being mentioned in 138 company stacks & 246 developers stacks; compared to JSPM, which is listed in 5 company stacks and 6 developer stacks.