Convert Text to underscore_case

Replace spaces with underscores and convert to lowercase.

underscore_case converter

Convert your text to underscore_case instantly with our free online tool. Easily transform any phrase into a format where words are separated by underscores and all letters are in lowercase.

Why is it called underscore_case?

The term underscore_case comes from the appearance of the underscores between words, which resemble a snake slithering on the ground. Unlike camelCase, which eliminates spaces and capitalizes each word after the first, or PascalCase, which capitalizes every word, underscore_case maintains readability with underscores.

Learn more about it on Wikipedia.

Common use cases for underscore_case

  • Programming variables and file names – Commonly used in languages like Python and Ruby.
  • Database field names – Many developers use underscore_case to name columns in SQL databases.
  • Environment variables – Used for naming system variables, such as api_key or user_id.
  • URL structure – Occasionally used in web development for readability in URL slugs.

What are other names that people use for this casing?

Related casings

How to use the underscore_case converter

Using our underscore_case converter is simple:

  1. Enter your text into the input field.
  2. Click the "Convert" button.
  3. Copy the converted underscore_case text and use it wherever needed.

FAQ

Is underscore_case case-sensitive?

No, underscore_case is always in lowercase, with words separated by underscores.

Is underscore_case the same as kebab-case?

No, while both formats use separators for readability, underscore_case uses underscores (_) whereas kebab-case uses hyphens (-).

Which programming languages prefer underscore_case?

Python, Ruby, and SQL databases often use underscore_case for variable names, file names, and database column names.

Try the underscore_case converter now!

Effortlessly transform your text into underscore_case format with our free online tool. Give it a try and make text conversion quick and hassle-free!