Tool
Snake Case Converter
Convert phrases and identifiers to snake_case for code and databases.
Text Tools
What this tool does
Convert spaced, camelCase, or hyphenated text into lowercase snake_case identifiers.
How to use
- Paste the phrase or identifier to convert.
- Review the snake_case output.
- Copy the result for Python, SQL columns, or config keys.
Examples
Title to snake_case
Input: Hello World Example
Output: hello_world_example
Words are lowercased and joined with underscores.
Common use cases
- Create Python function or variable names
- Generate database column names
- Normalize config keys for YAML or JSON
FAQ
Does this convert camelCase?
Yes. Capital letters become word boundaries with underscores.
Can I get camelCase output?
Use the Camel Case Converter for camelCase identifiers.
Are consecutive underscores collapsed?
Yes. Repeated separators are merged into one underscore.
Can I convert back to camelCase?
Yes. Use the Camel Case Converter for camelCase or PascalCase output.
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Last reviewed: 2026-05-23