🔤 Text Case Converter

Convert text between multiple case formats instantly. Transform your text to uppercase, lowercase, title case, or sentence case. Perfect for formatting documents, titles, and content.

Enter Your Text:

📌 Converted Result:

Select a case option and enter text to see the result...

Characters

Words

Lines

💡 Case Conversion Types:

🔠 UPPERCASE

THE QUICK BROWN FOX

🔡 lowercase

the quick brown fox

📝 Title Case

The Quick Brown Fox

📄 Sentence case

The quick brown fox

📝 Examples:

Original Text:

hello world from text converter

UPPERCASE Result:

HELLO WORLD FROM TEXT CONVERTER

Title Case Result:

Hello World From Text Converter

Sentence Case Result:

Hello world from text converter

Multiple Sentences Example:

this is sentence one. this is sentence two! is this sentence three?

Sentence Case Output:

This is sentence one. This is sentence two! Is this sentence three?

📚 Use Cases:

Convert email or document titles to proper case
Format headings and subheadings consistently
Prepare text for specific formatting requirements
Standardize user input and form submissions
Fix all-caps or all-lowercase text
Create consistent naming conventions
Format social media posts or captions

ℹ️ Note: Sentence case capitalizes the first letter of sentences and after punctuation marks (. ! ?). Title case capitalizes the first letter of each word. Results update in real-time as you click conversion buttons.

What the four buttons really do

Each button rewrites the text from scratch, working from what you typed rather than from the last result:

UPPERCASE      every letter raised
lowercase      every letter lowered
Title Case     lower everything, then raise the first character
               of each space-separated chunk
Sentence case  lower everything, then raise the first letter and
               anything following . ! or ?

The two on the right start by flattening your text, which is the source of every surprise below. NASA sent iPhone data comes back as Nasa Sent Iphone Data, because the acronym and the camel case were destroyed before the capitals were put back.

Four edges to check before you paste

Title Case splits on the space character alone. A word at the start of a new line is glued to the last word of the line above, so it keeps its lowercase letter. Fix those by hand.
Every word is capitalised, including of, the and and. Newspaper and Chicago title style keep short prepositions and articles lowercase; this is start case, not that.
A leading quote or bracket blocks it. In "hello the first character is the quote, so the h is never raised.
Sentence case treats a full stop as a boundary. e.g. this becomes E.G. This, and the lone pronoun I survives only where it happens to open a sentence.

The three counters describe what you typed, not the converted output, and blank lines are excluded from the line count, while the character count is in UTF-16 units, so one emoji counts as two.

Frequently asked questions

How do I capitalise the first letter of every word?

Use Title Case. Be aware it lowercases the rest of each word first, so USA and McDonald come back as Usa and Mcdonald and need restoring by hand.

What is the difference between title case and sentence case?

Title case raises the first letter of every word, for headings. Sentence case raises only the first letter after a full stop, question mark or exclamation mark, which is how ordinary prose is written.

Can I undo a conversion?

Nothing is overwritten. Your text stays in the input box and each result is written to the panel below, so clicking a second button converts the original again rather than the last output.