Express.js is a simple Node.js framework for single, multi-page, and hybrid web applications.

Hugo is an open-source static site generator that features fast build times, flexible themes, support for multiple content formats, multilingual websites, live reloading, and an active community. It allows developers to easily create and deploy SEO-friendly and mobile-responsive websites.

Jekyll is a static site generator written in Ruby that allows you to create simple, fast, and secure websites without the need for a database.

ESLint is a linter for JavaScript that analyzes code to detect and report on potential problems and errors, as well as enforce consistent code style and best practices, helping developers to write cleaner, more maintainable code.