Case Converter
Switch between uppercase, lowercase, title case, sentence case, and alternating case with a single click. Save time on manual formatting — paste your text and convert in seconds.
0 characters
↑ Select a case style above to convert
How to Use This Tool
- 1
Paste or type your text in the input area.
- 2
Click a case style button: UPPER, lower, Title, Sentence, or aLtErNaTiNg.
- 3
The converted text appears in the result area instantly.
- 4
Click 'Copy' to copy the result to your clipboard.
- 5
Switch between different styles at any time.
See It in Action
hello worldHELLO WORLDHELLO WORLDhello worldthe quick brown foxThe Quick Brown FoxHEY THERE. HOW ARE YOU.Hey there. How are you.About the Case Converter Tool
The Case Converter is a free, browser-based utility. All processing happens entirely in your browser — your text is never sent to any server and is never stored.
Designed for speed and simplicity, this tool works instantly with zero setup. Whether you're a developer, writer, student, or content creator, case converter has never been this easy.
Frequently Asked Questions
A case converter is a text tool that changes the letter casing of your text. You can convert to UPPERCASE, lowercase, Title Case, Sentence case, or aLtErNaTiNg CaSe instantly.
Title Case capitalizes the first letter of every word. For example, 'the quick brown fox' becomes 'The Quick Brown Fox'. It's commonly used for headings, titles, and proper nouns.
Sentence case capitalizes only the first letter of the first word in each sentence, and lowercases everything else. Example: 'HELLO WORLD. HOW ARE YOU.' becomes 'Hello world. How are you.'
Alternating case alternates between lowercase and uppercase letters. For example: 'Hello World' becomes 'hElLo WoRlD'. It's popular as a sarcastic internet meme.
No — there are no limits. Everything runs in your browser so performance depends only on your device.
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