snake_case Converter

Summary

Paste or type any text and instantly convert it to snake_case — ideal for Python variables, Ruby methods, and SQL column names.

How it works

1. Type or paste your text into the input field on the left.
2. The tool instantly converts your input to snake_case in the output panel.
3. Click "Copy" to copy the result to your clipboard.
4. Use the conversion mode selector to switch between strict lowercase and SCREAMING_SNAKE_CASE.
5. The "Clear" button resets both input and output fields.

Use cases

• Generate Python variable and function names from plain English descriptions.
• Convert class or method names from camelCase to snake_case for Ruby conventions.
• Create database column names from human-readable labels.
• Normalize inconsistently cased identifiers in bulk when refactoring code.
• Convert API response field names to match Python or Ruby naming standards.
• Produce environment variable names in SCREAMING_SNAKE_CASE format.
• Transform spreadsheet headers into database-safe field names.
• Quickly test how a phrase looks as a snake_case identifier.

Frequently Asked Questions