Snake case is a naming convention where words are separated by underscores and typically lowercase. It's the standard for Python variables, database columns, and configuration files. Learn how to convert text to snake_case instantly with online tools.

What is Snake Case?

Snake case (also written as snake_case) is a naming convention where:

✓Words are separated by underscores (_)
✓All letters are lowercase
✓No spaces or special characters
✓Easy to read and parse by machines

Examples:

Input:User Profile Data→user_profile_data

Input:Get Total Count→get_total_count

Input:API Response Time→api_response_time

Where Snake Case is Used

🐍 Python Programming

Python's official style guide (PEP 8) mandates snake_case for function names, variable names, and method names.

def calculate_total_price(item_count, unit_price):

total_amount = item_count * unit_price

return total_amount

🗄️ Database Design

Database table names and column names typically use snake_case across all major database systems.

CREATE TABLE user_accounts (

user_id INT PRIMARY KEY,

first_name VARCHAR(100),

created_at TIMESTAMP

);

⚙️ Configuration Files

Environment variables and configuration keys often use snake_case or SCREAMING_SNAKE_CASE.

database_host=localhost

api_key=your_key_here

max_connections=100

📁 File Naming

Many developers prefer snake_case for file names, especially in Python projects and scripts.

user_authentication.py

database_migration_001.sql

test_user_service.py

How to Convert to Snake Case

Step 1: Access Converter Tool

Use a free online snake case converter. These tools instantly transform any text format to snake_case.

Step 2: Paste Your Text

Enter or paste the text you want to convert. It can be in any format: spaces, camelCase, PascalCase, Title Case, etc.

Step 3: Select Snake Case

Choose "snake_case" from the available conversion options. The tool will instantly transform your text.

Step 4: Copy Result

Copy the converted snake_case text and use it in your code, database schema, or wherever needed.

Snake Case Conversion Examples

Original Format	Input	Snake Case Output
Title Case	User Profile Page	user_profile_page
camelCase	getUserData	get_user_data
PascalCase	UserProfileData	user_profile_data
kebab-case	user-profile-page	user_profile_page
Spaces	calculate total price	calculate_total_price

Snake Case vs Other Conventions

snake_case vs camelCase

Python vs JavaScript

snake_case

user_full_name

camelCase

userFullName

Use snake_case when: Writing Python code, designing databases, or following Unix/Linux conventions

snake_case vs kebab-case

Code vs URLs

snake_case

user_profile_page

kebab-case

user-profile-page

Use snake_case when: Naming variables and functions. Use kebab-case for: URLs and CSS classes

SCREAMING_SNAKE_CASE

Constants

A variant of snake_case with all uppercase letters. Used exclusively for constants.

MAX_CONNECTION_TIMEOUT = 30

DATABASE_URL = "localhost"

API_VERSION = "v2"

Best Practices for Snake Case

✓Be consistent - If your project uses snake_case, stick with it throughout
✓Use descriptive names - `user_login_attempt_count` is better than `ulac`
✓Avoid redundancy - `user_user_id` is redundant; use `user_id`
✓Keep it readable - Don't over-abbreviate; `temp` is okay, `t` is too short
✓Follow language conventions - Python uses snake_case; respect that in Python projects

Convert to Snake Case Now

Transform any text to snake_case instantly. Perfect for Python developers and database designers!

Try Snake Case Converter →

Frequently Asked Questions

Why is it called snake case?

The name comes from the appearance of the underscores connecting words, which resembles a snake's slithering movement: word_like_this.

Should I use snake_case for Python class names?

No! Python class names should use PascalCase (e.g., UserProfile, DatabaseConnection), while function and variable names use snake_case.

Can I use numbers in snake_case?

Yes, numbers are fine: user_id_123, version_2_update. However, don't start a name with a number (invalid in most programming languages).

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