Case Converter
Need to quickly change the capitalization of your text? The free Case Converter by Amaze SEO Tools transforms any block of text into four different letter case formats — sentence case, lower case, upper case, or capitalized case — with a single click.
Amaze SEO Tools provides a free Case Converter that instantly changes the capitalization style of any text you paste into it.
Incorrect capitalization is one of the most common formatting issues in writing, data entry, and content management. Maybe you accidentally typed an entire paragraph with Caps Lock on. Perhaps you received a spreadsheet with names in ALL CAPS that need to be properly formatted. Or you're preparing headlines that require every word to be capitalized. Fixing these issues manually — character by character — is tedious and error-prone.
Our Case Converter eliminates that hassle. Paste your text, pick a case style, and the tool reformats everything instantly. No manual editing, no find-and-replace workarounds, no downloading software. It works with any amount of text, from a single word to entire documents.
Input Area about Case Converter Tool
Content Text Area
A large text area dominates the top of the tool, with the placeholder "Paste your content here..." guiding your input. Type directly into the box or paste text from any source — documents, emails, spreadsheets, code editors, or web pages. A copy/clipboard icon sits in the top-right corner, letting you quickly copy the converted text back to your clipboard after transformation.
The text area accepts content of any length. Whether you need to convert a single title or an entire essay, the tool handles it without truncation.
reCAPTCHA (I'm not a robot)
Below the text area, tick the "I'm not a robot" checkbox to verify yourself before converting.
Conversion Buttons for Case Converter
Four dark blue buttons appear at the bottom, each applying a different capitalization rule to your entire text. Click whichever matches your desired format:
Sentence case
Capitalizes only the first letter of each sentence and converts everything else to lowercase. This is the standard writing format used in most paragraphs, articles, emails, and everyday text.
Example:
Input: THIS IS AN EXAMPLE. here IS ANOTHER sentence.
Output: This is an example. Here is another sentence.
Best for: Blog posts, email bodies, product descriptions, general writing.
lower case
Converts every single character in your text to lowercase — no capital letters anywhere. All uppercase letters are transformed to their lowercase equivalents.
Example:
Input: The Quick Brown Fox JUMPS Over The Lazy Dog.
Output: the quick brown fox jumps over the lazy dog.
Best for: Usernames, email addresses, URL slugs, CSS class names, data normalization before comparison.
UPPER CASE
Converts every character to CAPITAL LETTERS. Every lowercase letter is transformed to its uppercase equivalent.
Example:
Input: The Quick Brown Fox jumps over the lazy dog.
Output: THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG.
Best for: Headings, banners, legal document sections, acronyms, labels that demand maximum visual impact.
Capitalized Case
Capitalizes the first letter of every word and lowercases the remaining letters. Also known as Title Case, this format gives each word visual weight and a formal appearance.
Example:
Input: the quick brown fox jumps over the lazy dog.
Output: The Quick Brown Fox Jumps Over The Lazy Dog.
Best for: Article titles, book titles, slide headings, proper noun formatting, name capitalization in databases.
How to Use Case Converter – Step by Step
- Open the Case Converter on the Amaze SEO Tools website.
- Paste your text into the content area — or type it directly.
- Complete the reCAPTCHA by ticking the verification box.
- Click one of the four buttons — Sentence case, lower case, UPPER CASE, or Capitalized Case — to transform your text.
- Review the converted text in the text area. The content updates in place with the new capitalization applied.
- Copy the result using the clipboard icon in the top-right corner, then paste it wherever you need it.
Practical Scenarios for Case Conversion
Changing text capitalization is more useful than it sounds — here's where it saves real time:
- Fixing accidental Caps Lock text — Typed an entire paragraph in uppercase by mistake? Paste it in and click "Sentence case" to restore normal formatting instantly.
- Formatting spreadsheet data — Customer names imported in ALL CAPS look unprofessional. Convert them to Capitalized Case to produce clean, properly formatted names like "John Smith" instead of "JOHN SMITH."
- Creating consistent headlines — Ensure all your article titles, blog headings, and social media post titles follow the same capitalization style by running them through the Capitalized Case converter.
- Preparing URL-friendly text — Convert titles or phrases to lower case before using them as URL slugs, file names, or database keys where uppercase characters are unwanted.
- Legal and formal document formatting — Certain sections of contracts, terms of service, and legal notices are required to appear in ALL UPPERCASE for emphasis and compliance.
- Data cleanup and normalization — When merging datasets from different sources where capitalization is inconsistent, converting everything to a uniform case ensures accurate sorting, matching, and deduplication.
- Email and messaging cleanup — Received a message typed entirely in caps? Paste it through "Sentence case" to make it readable before forwarding or archiving.
Why Choose Amaze SEO Tools for Case Conversion?
- Completely Free — No account required, no usage limits, no premium features behind a paywall.
- Four Conversion Modes — Sentence case, lower case, UPPER CASE, and Capitalized Case — covering virtually every capitalization need.
- Instant Transformation — Click a button and the entire text converts immediately. No processing delays even for lengthy content.
- One-Click Copy — The clipboard icon lets you grab the converted text without manually selecting it.
- No Text Length Restrictions — Convert a single headline or multiple pages of content — the tool handles it all.
- Browser-Based — No software installation, no extensions. Works on desktops, laptops, tablets, and smartphones.
Frequently Asked Questions (FAQ)
Q: Is the Case Converter free?
A: Yes. The tool by Amaze SEO Tools is entirely free — no registration, no payment, no restrictions.
Q: What's the difference between Sentence case and Capitalized Case?
A: Sentence case capitalizes only the first letter of each sentence (like regular writing). Capitalized Case capitalizes the first letter of every word (like a book title). For example, "The quick brown fox" is Sentence case, while "The Quick Brown Fox" is Capitalized Case.
Q: Does the tool preserve my original text?
A: The conversion updates the text directly in the text area. If you need the original version, make sure to copy it before clicking a conversion button, or simply press Ctrl+Z (undo) in the text area to revert.
Q: Can I convert text from other languages?
A: The tool works with any language that uses uppercase and lowercase letter distinctions (Latin-based alphabets, Cyrillic, Greek, etc.). Languages without case distinctions (like Chinese, Japanese, or Arabic) won't be affected by the conversion.
Q: Is there a limit on how much text I can convert?
A: There's no strict character limit. You can paste anything from a single word to multiple pages of text and the converter will process it all.
Q: What is the clipboard icon for?
A: The icon in the top-right corner of the text area copies the current content to your clipboard with one click, so you can paste the converted text directly into your document, email, or editor without manually selecting it.
Q: Can I apply multiple conversions?
A: Yes. After converting to one case, you can click a different button to re-convert to another format. The tool applies whichever conversion you click most recently to the current text in the box.
Fix your text capitalization in one click — use the free Case Converter by Amaze SEO Tools and format your content perfectly every time!