I am mainly using MERN(MongoDB, Express, React, Node) as my tech stack.
In the front-end, I love to use TailwindCSS as my main front-end library, Zustand as my state management, and Axios for API calls. Beyond that though, I also know how Material-UI, ChakraUI, styled-components, sass, redux, ContextAPI, and more.
In the backend, I mainly use Express, JWT(authorization, authentication), bcrypt(encryption), Firebase(Firestore, database, Sign-in methods(email, google, Facebook)). MongoDB(database), mongoose(schemas, models, document relationships). My secondary techs in the backend are Fastify, PostgreSQL.