snake_case_converter

Convert text to snake_case format instantly - perfect for Python variables and database naming

hello_world_example

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Python Perfect

Follows PEP 8 Python naming conventions. Perfect for variable names, function names, and module names in Python code.

user_name = "john_doe"
calculate_total_price()
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Database Ready

Ideal for database table names, column names, and field naming conventions across SQL databases.

CREATE TABLE user_profiles (
  user_id INT,
  first_name VARCHAR(50)
);
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Smart Conversion

Handles camelCase, PascalCase, spaces, and special characters. Automatically converts to proper snake_case format.

Frequently Asked Questions

What is snake_case and when should I use it?
Snake_case is a naming convention where words are separated by underscores and all letters are lowercase. It's the standard for Python variables, functions, and modules according to PEP 8, and commonly used in database naming conventions.
How does the snake_case converter handle different input formats?
Our converter intelligently handles camelCase, PascalCase, kebab-case, and regular text with spaces. It identifies word boundaries and converts everything to lowercase with underscores between words.
Is snake_case the same as SCREAMING_SNAKE_CASE?
No, snake_case uses lowercase letters (like: user_name), while SCREAMING_SNAKE_CASE uses uppercase letters (like: USER_NAME). SCREAMING_SNAKE_CASE is typically used for constants in programming.
Can I convert camelCase variables to snake_case?
Yes! Our converter automatically detects camelCase patterns (like userName, calculateTotalPrice) and converts them to proper snake_case format (user_name, calculate_total_price).
What programming languages use snake_case?
Snake_case is primarily used in Python (PEP 8 standard), Ruby, and many database systems. It's also common in API endpoint naming, file naming, and configuration files across various technologies.