Case Converter
Change text to Sentence case, lowercase, UPPERCASE, Title Case (AP, Chicago, APA, MLA), camelCase, snake_case, kebab-case and 10 more — instantly, with acronyms kept.
- Your data never leaves your device
- 100% free
- No sign-up
- Works offline after first load
How to change text case
- Type or paste your text, or open a file.
- Pick a case on the right — the result updates instantly; for Title Case choose AP, Chicago, APA or MLA style.
- Copy the result, download it, or click “Use result” to keep converting.
About Case Converter
Fix text typed with Caps Lock on, turn headlines into proper Title Case or rename variables in seconds. Paste your text and choose one of 17 cases — the result appears instantly next to it.
Title Case follows the AP, Chicago, APA or MLA rules for small words, acronyms like NASA keep their capitals, and developers get camelCase, PascalCase, snake_case, kebab-case and more, line by line. Open Word, PDF or text files; nothing leaves your browser.
Good for
- Fixing text typed with Caps Lock on
- Headlines and titles in AP or Chicago style
- Variable, file and CSS class names
Tip: Click “Use result” to chain conversions, e.g. lowercase first and then Title Case.
Frequently asked questions
What is the difference between Capitalized Case and Title Case?
Capitalized Case capitalises every word. Title Case follows a style guide: short words such as a, of, and, the stay lower-case unless they are the first or last word.
Which title case style should I use?
AP for news and blogs, Chicago for books, APA for academic papers in psychology and social sciences, MLA for humanities papers.
Can it convert to programming cases?
Yes — camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, path/case and Train-Case, line by line.
Are acronyms kept?
Yes, with “Keep acronyms” on, words like NASA, USA or HTML keep their capitals in sentence, title and lower case.
Can I open files?
Yes — open or drop TXT, Markdown, CSV, HTML, JSON, subtitles, Word (.docx), OpenDocument (.odt), RTF and PDF files, even several at once.
Does my text leave my device?
No. The case is changed in your browser and nothing is uploaded. A draft is kept only in this browser so you don't lose it.