Convert Case
Transform text to uppercase, lowercase, title case, and more.
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What is a Case Converter?
A case converter is a text transformation tool that changes the capitalization of your text. Whether you need to fix accidentally caps-locked sentences, format headings for a blog post, or prepare content for social media, a case converter saves time and eliminates manual retyping.
Our free online tool supports multiple case styles — from simple uppercase and lowercase to title case, sentence case, and more advanced options like toggle and inverse case.
How to Use This Tool
Paste or type your text into the input textarea at the top.
Click any case conversion button to transform your text instantly.
Review the converted output in the result textarea below.
Use Copy Result to copy to your clipboard, Swap to exchange input and output, or Clear to start over.
Types of Text Cases
UPPERCASE
HELLO WORLD
Every character is converted to capital letters.
lowercase
hello world
Every character is converted to small letters.
Title Case
The Quick Brown Fox
Major words are capitalized following title conventions.
Sentence case
Hello world. How are you?
Only the first letter of each sentence is capitalized.
Capitalize Each Word
Hello World Example
The first letter of every word is capitalized.
Toggle / Inverse Case
hELLO wORLD
Uppercase becomes lowercase and vice versa for each character.
Benefits of Case Conversion
- Fix accidentally caps-locked text in seconds
- Format blog titles, headings, and metadata consistently
- Prepare social media posts with the right tone and style
- Clean up copied text from PDFs and documents
- Save time on repetitive manual editing tasks
- Process large blocks of text instantly in your browser
Частые вопросы
How do I convert text to uppercase?
Paste or type your text into the input box, then click the UPPERCASE button. Your converted text appears instantly in the output area — no page reload required.
What is title case?
Title case capitalizes the first letter of major words in a title. Small words like "a", "the", and "and" typically stay lowercase unless they appear at the beginning or end of the title.
What is sentence case?
Sentence case capitalizes only the first letter of each sentence. The rest of the words remain lowercase, just like a normal written sentence.
Is this tool free?
Yes. This case converter is completely free to use with no sign-up, no limits, and no hidden fees.
Does my text leave my browser?
No. All conversions happen entirely in your browser using client-side JavaScript. Your text is never sent to a server or stored anywhere.
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