snake_case Converter Text
Turn any phrase into snake_case for databases and Python.
snake_case Converter is a free online tool that turn any phrase into snake_case for databases and Python. It runs entirely in your web browser using plain JavaScript, so files are processed on your own device and never uploaded to a server. There is no sign-up, no file size limit imposed by the site, no watermark and no paid tier.
- Price
- Free: no account, no quota, no watermark
- Category
- Text
- Where it runs
- In your browser, on your device
- Files uploaded
- None
- Technology
- plain JavaScript
- Settings
- None, it just works
- Works offline
- Yes, after the first visit
About snake_case Converter
snake_case joins lowercase words with underscores. It is the standard in Python (PEP 8), Ruby, Rust and C, and the default for SQL column names, which is why data pipelines so often need to convert between it and the camelCase their API layer speaks. Underscores survive being copy-pasted into places where hyphens would be interpreted as minus signs.
How to use it
- Paste the text you want to run through snake_case converter.
- There is nothing to configure: the result updates as you type.
Under the hood
| Runs on | plain JavaScript: runs the whole thing |
Questions
Why do databases prefer snake_case?
SQL identifiers are case-insensitive unless quoted, so `userId` and `userid` are the same column. Underscores make word boundaries survive that folding, which capitals do not.
What is SCREAMING_SNAKE_CASE?
The same thing in capitals, used for constants in almost every language. Use the CONSTANT_CASE converter for that.