How to convert string to camel and snake case in Elixir

Article autor
September 9, 2025
How to convert string to camel and snake case in Elixir
Elixir Newsletter
Join Elixir newsletter

Subscribe to receive Elixir news to your inbox every two weeks.

Oops! Something went wrong while submitting the form.
Elixir Newsletter
Expand your skills

Download free e-books, watch expert tech talks, and explore open-source projects. Everything you need to grow as a developer - completely free.

Table of contents

Sooner or later you may need to convert a string in Elixir to a camel or snake case. With Macro module (available in Elixir without extra dependency) it's super easy.

Converting into snake case

> Macro.underscore("ThisWillBeSnakeCase")
"this_will_be_snake_case"

Converting into camel case

> Macro.camelize("this_will_be_camel_case")
"ThisWillBeCamelCase"

Work with a team that keeps learning and building better software every day.

Related posts

Dive deeper into this topic with these related posts

No items found.

You might also like

Discover more content from this category

Using Logger.info and Logger.debug in ExUnit tests

By default in the test env, Phoenix doesn't show Logger.debug/Logger.info outputs in the console.

How to run tests in Elixir IEx shell

Hey! Have you ever wondered about tests running inside the IEx shell? For a long time, I was convinced that it’s not really possible. And as it turns out - that’s not really straightforward. You won’t easily find information about that in the documentation.

How to Lazy-Load external scripts for better page speed?

Nowadays, with an ever-growing number of web services, we tend to overload Web apps with external resources. As a result, it decreases page load speed and affects SEO score. There is a pretty easy solution for that.