Case Converter
Change text case format
Last updated:Text case conversion transforms your input between UPPERCASE, lowercase, Title Case, Sentence case, and several programming styles (camelCase, snake_case, kebab-case, CONSTANT_CASE). Upper and lower case work for most scripts; the programming styles keep only the letters A–Z and the digits 0–9. All processing is local — paste any text safely.
Your file stays on your device — never uploaded
How to convert text case
- 1
Type or paste your text into the input box above.
- 2
Select the case you want — UPPER CASE, lower case, Title Case, Sentence case, camelCase, snake_case, kebab-case, or CONSTANT_CASE.
- 3
Your converted text appears in the result box. Copy it to your clipboard with one click. The conversion runs locally in your browser — no text is sent to any server.
Why use our case converter?
Reformatting text by hand is tedious, especially with large blocks of copy. Whether you accidentally typed an entire paragraph in caps lock, need to convert headings to title case for a report, need to normalize names in a spreadsheet, or want to reformat variable names between camelCase and snake_case for code, this tool handles it. It supports the most common conventions.
The tool runs entirely in your browser, so your text is never transmitted to any server. It pairs well with our word counter for proofreading workflows, or use the text comparison tool to verify your changes.