Case Converter
UPPER, lower, Title, Sentence, camelCase, snake_case & more.
See how it works
Watch a quick simulation of this tool in action — no file needed.
How to use Case Converter
Follow these steps — everything happens instantly in your browser.
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Step 1. Paste your text into the input box.
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Step 2. Click any of the eight conversion buttons to apply that case style.
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Step 3. Review the result in the output box and hit “Copy” to grab it.
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Step 4. Start typing again to clear the active conversion and try another.
Why use this tool
Private by design
All processing happens locally in your browser. Open DevTools → Network and you'll see zero file uploads. Ever.
Instant
No upload wait, no queue, no server round-trip. Results appear the moment you drop a file.
Free & unlimited
No accounts, no watermarks, no daily caps. Use it as many times as you like, forever.
Works everywhere
Desktop, tablet or phone — every tool is responsive and installable as a PWA for offline use.
Frequently asked questions
Everything you might want to know about case converter.
Word Counter
Live word, character, sentence & reading-time stats — private.
Find & Replace
Replace text with optional regex & case-sensitive matching.
Text to Slug
URL-friendly slugs from any title — accent-stripping included.
Reverse Text
Reverse characters, words or lines — instantly.