Case Converter
UPPER, lower, Title, camelCase, and more.
Runs entirely in your browser — nothing you enter is uploaded or sent to a server.
It reads existing camelCase and separators to split words, but unusual inputs — acronyms, mixed symbols — can split in ways you don't expect, so glance over the result before using it. Read our full disclaimer.
About this tool
Transform text into any common case format — UPPERCASE, lowercase, Title Case, Sentence case, and the programmer favourites camelCase, snake_case, kebab-case, and CONSTANT_CASE. It's handy for tidying up headings, formatting a code identifier or a URL slug, or fixing text that arrived in the wrong case. It reads existing camelCase and separators to split words sensibly, converts live as you edit, and copies in one click — all in your browser.
Try it
"hello world" becomes "Hello World" (Title), "helloWorld" (camel), "hello_world" (snake), or "HELLO_WORLD" (constant).
How to use
- 1Type or paste your text.
- 2Click a case format to convert.
- 3Copy the result — it updates live as you edit.
Features
- Eight case formats, including the programmer cases.
- Understands existing camelCase and separators in the input.
- Live conversion with one-click copy.
Frequently asked questions
What's the difference between snake_case and kebab-case?
Both lowercase the words; snake_case joins them with underscores (hello_world) and kebab-case with hyphens (hello-world).
What is camelCase vs PascalCase?
camelCase lowercases the first word and capitalises the rest (helloWorld); PascalCase, or upper camel case, capitalises every word including the first (HelloWorld). This tool's camelCase is the lower variant used for variable names.
How do I make a URL slug from a title?
Use kebab-case — 'My New Post' becomes 'my-new-post'. Converting to kebab-case gives a clean, lowercase, hyphen-separated string that's ready to use as a URL slug.
Does it handle acronyms and unusual input?
It splits on existing camelCase and separators, which works for most text, but unusual inputs — all-caps acronyms, mixed symbols — can split in ways you don't expect, so glance over the result before using it.
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