snake_case Converter
Convert words into lowercase with underscores, so user profile becomes user_profile. A common convention for Python variables, database columns, and configuration keys.
How to use
- Spaces, hyphens, and existing underscores are unified into single underscores.
- After conversion, check for repeated or leading and trailing underscores before using the result.
FAQ
Do several separators become several underscores?
Runs of separators are usually merged into one underscore so no empty segment appears. Still review the result before copying it into code, in case your project has its own spelling rules.
Is this good for URLs?
URL paths usually use hyphens rather than underscores, since search engines treat hyphens as word separators. Use the kebab-case tool when the result is meant for a link.
Further reading