Pify is a lightweight Node.js package that promisifies callback-style functions. It converts functions using the standard (err, value) callback pattern into Promise-returning functions, simplifying asynchronous code and making it cleaner. Pify allows the use of async/await syntax and integrates seamlessly with Promise-based workflows. Its minimal footprint ensures that it is a useful, dependency-free utility for working with legacy code or libraries without native Promise support.