CamelCase ⇄ snake_case Converter
Free online variable-naming converter for camelCase and snake_case, with one-click conversion in both directions and multi-line batch support.
Tool Guide
About the CamelCase ⇄ snake_case Converter
Converts variable names between camelCase and snake_case in either direction, with multi-line batch processing — handy for switching between naming conventions.
Key Features
1. Two-Way Conversion
One click to convert camelCase to snake_case, or snake_case to camelCase.
2. Batch Processing
Processes input line by line, so you can convert many variable names at once.
How to Use
Step 1: Enter one variable name per line in the text box.
Step 2: Click "camelCase to snake_case" or "snake_case to camelCase".
Step 3: Review the result and copy it with one click.
Use Cases
Useful for converting naming conventions between front-end and back-end (e.g. JS variables to database columns), code refactoring, and unifying API field names.
FAQ
Can it convert multiple names at once?
Yes — one variable name per line, and all lines are converted together.
Can I copy the result with one click?
Yes, click "Copy Result" after conversion to copy it to the clipboard.