Identifier Case Converter: camelCase, snake_case, kebab-case

Q: Does it handle acronyms like API?

Common patterns like `APIKey` → `apiKey` or `api_key` depending on tokenization. Review edge cases for your style guide.

2026-05-24

Quick Answer

Quick Answer: Paste any identifier into our Identifier Case Converter and switch between camelCase, PascalCase, snake_case, kebab-case, and CONSTANT_CASE with one click.

Why developers need this

API fields — JSON uses camelCase; databases often use snake_case
CSS & URLs — kebab-case for class names and routes
Environment variables — CONSTANT_CASE by convention
Refactoring — bulk-convert exported names from legacy code

Examples

Input	camelCase	snake_case	kebab-case
`HTTPResponse`	`httpResponse`	`http_response`	`http-response`
`user_id`	`userId`	`user_id`	`user-id`
`get URL`	`getUrl`	`get_url`	`get-url`

vs general case converter

Our Case Converter handles sentence/title/upper/lower for prose. The identifier tool splits on spaces, underscores, hyphens, and camelCase boundaries—built for code symbols.

Try It Yourself

Convert your next variable name with the Identifier Case Converter →

Frequently Asked Questions

Does it handle acronyms like API?

Common patterns like APIKey → apiKey or api_key depending on tokenization. Review edge cases for your style guide.

Multiple lines?

Yes—each line is converted independently, useful for column paste from spreadsheets.

Non-English text?

Non-Latin characters are passed through; splitting works best on ASCII identifiers.

Try it yourself

Use our free Identifier Case Converter — no signup required.

Open Identifier Case Converter →