Free Text to snake_case
Python variables, database columns and file names speak snake_case. Paste any phrase and this free tool lowercases every word and joins them with underscores — the PEP 8 way, in one click.
How to Use the Text to snake_case
- Type or paste your phrase.
- Click “Convert to snake_case”.
- Get underscore-joined lowercase output.
- Copy it into your code or schema.
Features
Splits on spaces, hyphens, camel humps and existing underscores, lowercases all words and joins with single underscores. Collapses duplicate underscores and trims edge ones, so output is always tidy.
Benefits & Use Cases
Python developers name variables and functions per PEP 8. Data engineers standardize column names. DevOps folks generate environment-variable-style keys. Anyone naming files consistently gets clean results.
Tips
snake_case is the Python convention; if you are writing JavaScript, use camelCase instead. Existing underscores are treated as separators, so “user__name” still becomes “user_name”. For URL slugs with underscores, the slug tool adds accent handling too.
Frequently Asked Questions
Is it free?
Yes, free and unlimited.
What is snake_case?
Lowercase words joined by underscores: “user_account_id”.
When should I use it?
Python code, database columns, file names and environment variables.
Does it handle camelCase input?
Yes — “userName” becomes “user_name”.
Is my text uploaded?
No, conversion runs locally.
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