camelCase ↔ snake_case

Convert between camelCase and snake_case

Case Conversion

The camelCase to snake_case Converter is an indispensable tool for developers working across multiple programming languages and naming conventions. Automatically convert between camelCase (used in JavaScript, Java) and snake_case (used in Python, Ruby) with intelligent pattern recognition that preserves word boundaries.

Paste your variable names, function names, or identifiers and choose your desired conversion direction. The tool instantly transforms your naming convention while maintaining the semantic structure of your code. Perfect for refactoring code across language ecosystems, preparing code for different APIs, and ensuring consistency across your codebase.

Save hours of manual renaming work and ensure consistent naming conventions throughout your projects. Essential for full-stack developers and teams working with polyglot development environments.