stackstash

Very popular stack used across a lot of web apps. Uses JavaScript across the entire stack, preventing context-switching and allowing code and type sharing

Express.js logo: A minimal Node.js framework for building web servers and APIs.
MongoDB logo: A document database that stores records as JSON-like documents instead of table rows.
Node.js logo: JavaScript runtime for the server. Run apps, CLIs, and build tools outside the browser.
React logo: A JavaScript library for building interfaces out of components.
Free

Level

Key Features

Javascript across the StackJSON everywhereComponent-based UIHuge ecosystem

MERN Pros & Cons

Pros of MERN

  • Faster development and smaller learning curve

  • Great for single-page applications (SPAs)

  • Open source and free

  • All levels friendly (vibecoder -> pro)

  • Strong community and tooling

Cons of MERN

  • Fast-moving ecosystem (constantly changing)

  • Security doesn't show up by itself

  • Not ideal for highly relational data