snake_case Converter

Rename Python variables, database columns and environment variables in bulk.

How to use the snake_case Converter

  1. Type or paste your text into the box on the left.
  2. Adjust the options above if you need to. The result updates as you type.
  3. Click Copy result or Download to use your result.

What you can use it for

  • Name Python variables and functions
  • Create SQL column names
  • Write CONSTANT and ENV_VAR names

Private by design

The snake_case Converter runs entirely in your browser. Your text and files are never uploaded or stored on a server, so it is safe for work documents and personal information. It is free, with no sign-up and no limits on how often you use it.

Frequently asked questions

Where is snake_case used?

Python, Ruby, SQL databases and many APIs.

What is SCREAMING_SNAKE_CASE?

All-caps snake_case, used for constants and environment variables.

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