camelCase / snake_case Converter

What is the camelCase / snake_case Converter?

The camelCase / snake_case Converter is a free online tool that helps developers instantly convert variable and function names between different naming conventions. Whether you’re working with JavaScript, Python, Java, or any other language, this tool supports all major naming formats:

• camelCase – used in JavaScript, Java, C#
• PascalCase – used for class names in most languages
• snake_case – used in Python, Ruby, SQL
• SCREAMING_SNAKE_CASE – for constants
• kebab-case – used in URLs, CSS class names, and CLI arguments
• dot.case – used in configuration files and namespaces
• Title Case – human-readable format
• Sentence case – capitalized sentences

How to Use

1. Enter your identifiers: Type or paste variable/function names into the textarea. You can enter multiple identifiers, one per line or separated by spaces.
2. Auto-detection: The tool automatically detects the input format (camelCase, snake_case, etc.) and displays it below the input.
3. View conversions: Instantly see all 9 naming format conversions in the output tabs.
4. Copy to clipboard: Click any “Copy” button to copy the converted format directly to your clipboard.
5. Check statistics: View the number of lines converted, total words, and character count.

Common Use Cases

JavaScript to Python conversion: Convert camelCase function names to snake_case for Python compatibility.

API endpoint naming: Quickly convert variable names to kebab-case for REST API URLs.

CSS class generation: Transform your identifiers to kebab-case for CSS class names.

Database column naming: Convert to snake_case for SQL database columns.

Configuration files: Use dot.case or snake_case for config file keys.

Documentation: Convert to Title Case or Sentence case for user-friendly documentation.

Frequently Asked Questions

Can I convert multiple identifiers at once?

Yes! Enter multiple identifiers separated by line breaks or spaces. The converter will process each one and display the results for all formats.

Does the tool store my data?

No. This tool runs entirely in your browser. Your data is never sent to any server and is completely private.

What if the auto-detection gets the format wrong?

The auto-detection works by analyzing the input pattern. If you have mixed formats or ambiguous names, it will do its best. You can always refer to the detected format shown below the textarea.

Can I use this for class names and constants?

Absolutely! The converter supports PascalCase for classes, SCREAMING_SNAKE_CASE for constants, and Title Case for human-readable names.

What’s the difference between kebab-case and SCREAMING-KEBAB?

kebab-case uses lowercase letters (my-variable-name), while SCREAMING-KEBAB uses uppercase (MY-VARIABLE-NAME). Use SCREAMING-KEBAB for constants and environment variables.

Is there a limit on input size?

The tool handles large inputs efficiently. You can paste hundreds of identifiers at once and the conversion happens in real-time.