Case Converter

Convert text to UPPERCASE, lowercase, Title Case, Sentence case, and more.

Text Tools, String Manipulation (sub)

Upload .txt

Input Text

0 chars 0 words

Preserve Line Breaks

Output

Tech Specs & Security

Processing: 100% Client-side

Max Input Size: Unlimited (Browser-based)

Browser Support: All modern browsers

What is the Case Converter?

This tool lets you change the case of any text instantly. The converter helps you fix accidental caps lock mistakes or format code variables. You can preserve line breaks, track your word count in real-time, and auto-save your work locally. All processing happens directly in your browser, so your text never touches a server.

Pro Features Built In

We packed this tool with quick actions. Use the One-Click Paste and Copy buttons to move fast. Got a massive document? Just upload a .txt file instead of copying thousands of lines. You can also download your exact results as a new text file instantly.

Smart Text Processing

Your progress is automatically saved to your browser's local storage. If you accidentally close the tab, your text comes right back. Plus, the moment you pick a case option, any new typing converts instantly. Real-time counters at the bottom let you track exact character and word limits.

How to Use the Case Converter

Click 'One-Click Paste' or upload a .txt file to load your text quickly.

Toggle 'Preserve Line Breaks' if you have multiple paragraphs.

Click one of the conversion buttons, like 'UPPER CASE' or 'camelCase'.

Your output updates instantly. Simply adjust text to watch it auto-convert live.

Hit 'One-Click Copy' or download the final result as a text file.

Text Case Options Guide

Case Type	Example	Best Used For
UPPER CASE	HELLO WORLD	Buttons	warnings	and SQL keywords.
lower case	hello world	Casual chat	URLs	and directory names.
Title Case	Hello World	Blog titles	book covers	and headings.
Sentence case	Hello world	Standard writing and paragraph starts.
camelCase	helloWorld	Programming variables in JS and Java.
snake_case	hello_world	Database tables and Python variables.
kebab-case	hello-world	URL slugs and CSS class names.
tOGGLE cASE	hELLO wORLD	Fixing accidental caps lock typing.

Common Errors

Sentence Case looks for periods to start new sentences and might miss some rare proper nouns. If you upload a file, make sure the document is a standard .txt format so the browser can read the text properly.

Frequently Asked Questions

Is my text data safe here?

Yes. This tool runs 100% in your browser. We never see your text, and nothing is uploaded to our servers.

Can I convert very long documents?

Yes. Since the tool uses your own computer's memory, there is no set limit. Large files process in milliseconds.

Does it support special characters?

Yes. The tool handles Unicode characters, emojis, and symbols while keeping their original form if possible.

Does it work offline?

Yes. Once the page is loaded, you can disconnect from the internet and the converter will still work perfectly.

Where is my text saved?

Your text stays in your browser's Local Storage. Only you can see the data on this specific computer and browser.

Tool Layout Gallery

What is the Case Converter? - Case Converter

How to Use the Case Converter - Case Converter

Technical Specifications - Case Converter

Text Case Options Guide - Case Converter

Frequently Asked Questions about Case Converter - Case Converter

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