Change capitalization without retyping
Case Converter changes the letter case of text you paste or type. Choose a mode for sentences, headings, labels, or stylized text, then copy or download the result.
Choose the right case mode
Sentence case lowercases the text, then capitalizes the first letter at the start and after
.,!, or?.lower case changes every letter with a lowercase form to lowercase.
UPPER CASE changes every letter with an uppercase form to uppercase.
Capitalized Case capitalizes the first letter of every detected word.
Title Case (English) capitalizes words while keeping a built-in list of common English words lowercase in the middle of a title.
aLtErNaTiNg cAsE alternates lowercase and uppercase by character position.
InVeRsE CaSe swaps uppercase letters to lowercase and lowercase letters to uppercase.
Title Case is a practical formatter, not a replacement for a publisher's style guide. Review names, acronyms, and words whose capitalization matters.
How to use the case converter
Enter your text
Paste or type the text in the editor. Line breaks, spaces, punctuation, and characters without letter case stay in place.
Choose a case
Select the transformation you need. The editor updates with the converted text.
Copy or download
Copy the current result or download it as a plain text file. Use Clear when you want to start again.
If you also need to change the order of characters, words, or lines, use the Text Reverser.
Case conversion for URLs and code
Lowercasing text does not turn it into a URL slug: spaces and punctuation are not removed or replaced. The same caution applies to code identifiers. Use the converted text only where the target system's naming and case rules allow it.
What is the difference between Sentence case, Capitalized Case, and Title Case?
Sentence case capitalizes sentence starts, Capitalized Case capitalizes every detected word, and Title Case keeps selected common English words lowercase when they appear in the middle of a title.
Does the case converter work with Arabic and other non-English text?
Yes, it accepts Unicode text. Letters in scripts with uppercase and lowercase forms can change; Arabic letters and other characters without case remain unchanged.
Can I use the result as a URL slug or code identifier?
Not without reviewing it. Case conversion does not remove spaces, replace punctuation, transliterate text, or validate the naming rules of a URL or programming language.
Is my text uploaded?
No. Text is transformed in your browser without being sent to our servers. It stays in the page until you clear it, refresh, or close the page. Copying or downloading does not clear the editor.