snake_case Converter - Text to snake_case

A snake_case converter changes phrases into lowercase words joined by underscores. It standardizes names for code, databases, and configs. Use it to avoid spaces and mixed casing in environments where clarity and consistency matter. Processing stays in your browser for privacy.

1. Enter text: Paste a phrase, heading, or label.
2. Convert: Click Convert to get snake_case output.
3. Copy or download: Copy the result or save it as a text snippet for your project.

• Python-friendly: Matches common Python and Django naming conventions.
• Database ready: Keeps column and table names consistent and readable.
• Fast: Skip manual retyping and avoid typos.

Use case 1: Python variables

Turn "user session token" into user_session_token for scripts or APIs.

Use case 2: Database schemas

Create consistent column names before running migrations.

Use case 3: Config files

Standardize keys in .env or YAML files.

Basic example

Input: User Name
Output: user_name

Advanced example

Input: Max Retry Count
Output: max_retry_count

Extra underscores

Multiple spaces can create double underscores. Trim input first or use the tool’s "collapse whitespace" option.

Numbers and symbols

Numbers remain; symbols are removed. Add them back manually if needed.

• For constants, switch to the SCREAMING_SNAKE_CASE converter.
• For camelCase needs, try the camelCase converter.
• Clean text first with the remove formatting tool to avoid hidden characters.

• Create URL slugs with the slugify generator.
• Convert to kebab-case for CSS classes or URLs.

Conversion runs locally in your browser. No text is uploaded or stored.