UtilityBaseDeveloper Tools
Code Case Converter
Convert identifiers between camelCase, snake_case, kebab-case, PascalCase, and more.
Updated July 13, 2026
How to use the code case converter
- 1Type or paste an identifier or phrase.
- 2Read every case format at once.
- 3Copy the one you need.
- 4Paste multiple lines to convert a whole list.
Common uses
- Renaming a variable to match a project's convention
- Converting database columns to code identifiers
- Turning a label into a CSS class or file name
- Bulk-converting a list of identifiers
Frequently asked questions
How does it split my input into words?
It breaks on spaces, underscores, hyphens, and dots, and also on camelCase and PascalCase boundaries — so 'getUserID' splits into get / user / ID and 'first-name field' into first / name / field. It handles acronyms too, keeping 'HTTPRequest' as HTTP / request. Then it reassembles the words in each convention.
Which case should I use where?
camelCase for variables and functions in JavaScript, Java, and similar; PascalCase for classes and components; snake_case in Python and SQL; kebab-case for CSS classes, URLs, and file names; CONSTANT_CASE for constants and environment variables. Matching a project's convention keeps code consistent.
Can I convert a whole list at once?
Yes. Put each identifier on its own line and every output format converts line by line, so you can transform a full list of variable or column names in one paste. This is aimed at code identifiers; for capitalizing sentences or titles, use the text case converter instead.
About this tool
The code case converter reformats programming identifiers between every common convention at once: camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, Title Case, and dot.case. Type any input — spaced words, an existing identifier, or messy mixed separators — and it splits it into words (respecting camelCase and acronym boundaries) and shows all formats to copy. Paste multiple lines to convert a whole list of variable names at once. It's for code identifiers, distinct from a prose case converter that just changes letter case. Everything runs in your browser.
Like most tools on UtilityBase, the code case converter runs entirely in your browser — nothing you enter is uploaded or stored on a server. It's free to use with no account required. Browse more developer tools here.
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