Why I'm All In to Elixir and Phoenix

Posted on Sep 19, 2025

Elixir Phoenix My Go-To Stack

I’ve been a software developer for a long time, and I’ve worked with many different languages and frameworks over the years. But for the past few years, I’ve found myself reaching for the same two tools for almost every project: Elixir and Phoenix.

In this post, I want to share some of the reasons why I’ve fallen in love with this powerful combination, and why I think it’s a great choice for modern web development.

The Power of the BEAM

At the heart of Elixir is the Erlang Virtual Machine, also known as the BEAM. The BEAM is a battle-tested piece of technology that was designed for building highly concurrent and fault-tolerant systems. It’s the same technology that powers a large portion of the world’s telephone systems, so you know it’s reliable.

Elixir inherits all the power of the BEAM, and makes it accessible through a beautiful and modern syntax. With features like the actor model and the Open Telecom Platform (OTP), Elixir makes it easy to build systems that can handle millions of concurrent connections with ease.

The Productivity of Phoenix

Phoenix is a web framework for Elixir that is designed for productivity and developer happiness. It’s a full-featured framework that provides everything you need to build modern web applications, including a powerful routing layer, a flexible templating engine, and a rich set of tools for real-time communication.

One of my favorite features of Phoenix is LiveView. LiveView is a library that allows you to build rich, real-time user interfaces with server-rendered HTML. This means you can build complex, interactive UIs without writing a single line of JavaScript. It’s a game-changer for developer productivity, and it’s a joy to work with.

The Joy of Functional Programming

Elixir is a functional programming language, which means that it’s built around the concept of pure functions and immutable data. This can be a bit of a shift if you’re used to object-oriented programming, but once you get the hang of it, it’s a beautiful way to write code.

Functional code is often more concise, more predictable, and easier to test than its object-oriented counterpart. It’s a great way to write code that is easy to reason about and maintain over time.

A Thriving Community

Last but not least, the Elixir and Phoenix community is one of the most welcoming and supportive communities I’ve ever been a part of. There are a wealth of resources available online, including books, tutorials, and forums, and the community is always willing to help out a fellow developer.

Final Thoughts

If you’re looking for a modern, productive, and enjoyable way to build web applications, I highly recommend giving Elixir and Phoenix a try. It’s a powerful combination that has a lot to offer, and I’m confident that you’ll be as impressed as I am.