Text Case Converter
Convert text to UPPERCASE, lowercase, Title Case, or Sentence case in your browser, and copy the result. Nothing is uploaded.
Changing case affects letters that have upper and lower forms. Scripts without letter case, such as Hebrew, are left unchanged.
A free text case converter that changes the letter case of your text in one click. Paste your text and choose UPPERCASE, lowercase, Title Case (each word capitalized), or Sentence case (the first letter of each sentence capitalized). The result appears instantly and you can copy it. It works on English and mixed text; scripts without letter case, such as Hebrew, are left unchanged. Everything runs in your browser, and nothing you type is stored.
How to use this tool
- 01Paste your textType or paste the text you want to convert.
- 02Pick a caseChoose UPPERCASE, lowercase, Title Case, or Sentence case.
- 03Copy the resultThe converted text appears immediately; copy it with one click.
When is this useful?
- Fix shouty textTurn an all-caps paragraph into sentence case to make it readable.
- Clean up headingsApply title case to a heading or a list of titles.
- Normalize dataLowercase a column of values before comparing or importing them.
Examples
- UPPERCASE"hello world" becomes "HELLO WORLD".
- Title Case"the quick brown fox" becomes "The Quick Brown Fox".
- Sentence case"hello. how are you?" becomes "Hello. How are you?".
Formula or how the tool works
Lowercase and uppercase use the browser’s built-in case conversion. Title case lowercases the text, then capitalizes the first letter after a space. Sentence case lowercases the text, then capitalizes the first letter at the start and after sentence-ending punctuation.
Inputs, outputs, and assumptions
You enter text and choose a case. The tool returns the converted text. It assumes Latin-style letter case; characters without an upper and lower form are unchanged.
Supported modes or scenarios
Four modes: uppercase, lowercase, title case, and sentence case. Switch between them freely; the output updates instantly.
Limitations and common mistakes
Title and sentence case use simple rules, so they do not know that words like "iPhone" or acronyms should keep custom casing, and title case capitalizes every word rather than following a style guide’s small-word rules. Review the output for names and brands.
Privacy and local processing
The conversion runs in your browser on your device. Your text is never uploaded, stored, or shared, and closing the tab clears everything.
Frequently asked questions
What is the difference between title case and sentence case?
Title case capitalizes the first letter of every word; sentence case capitalizes only the first letter of each sentence.
Does it change Hebrew or other non-cased text?
No. Scripts without upper and lower letters, such as Hebrew, are left unchanged.
Does title case follow a style guide?
No. It capitalizes every word. Style guides that keep small words lowercase need a manual pass.
Can I convert a whole document?
Yes. Paste any length of text; it all converts at once.
Is my text saved?
No. Everything runs in your browser and nothing you enter is stored.
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