On this page
- How to change text case in 4 steps
- UPPERCASE, lowercase, Title Case and 7 more in one box
- Title case rules: which small words stay lowercase
- Sentence case vs title case
- Convert case without breaking emoji, accents and symbols
- Change case in Word, Google Docs and Excel
- Case styles to copy
- Where converted text works
- Case converter FAQ
How to change text case in 4 steps
- Paste or type your text in the box at the top of this page. Tap Paste Text to paste from the clipboard in one tap.
- Pick a style: UPPERCASE, lowercase, Title Case, Sentence case or one of the six others.
- The converted text appears at once in the output; switch styles as often as you like, the original stays in the box.
- Tap Copy and paste the result where you need it.
Changing case can change the length of a text: the German ß becomes SS in capitals, so one character turns into two. If your text has to fit a limit, check it in our character counter after converting.
UPPERCASE, lowercase, Title Case and 7 more in one box
Here is what each of the ten styles does to the same sentence, “the quick brown fox jumps over the lazy dog”.
| Style | What it does | Result |
|---|---|---|
| UPPERCASE | Every letter capital | THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG |
| lowercase | Every letter small | the quick brown fox jumps over the lazy dog |
| Title Case | Main words capitalized, short words such as “of” and “the” kept small | The Quick Brown Fox Jumps Over the Lazy Dog |
| Capitalized Case | The first letter of every word capitalized | The Quick Brown Fox Jumps Over The Lazy Dog |
| Sentence case | Only the first letter of each sentence and line capitalized | The quick brown fox jumps over the lazy dog |
| iNVERSE cASE | Capitals become small and small become capitals | THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG |
| aLtErNaTe | Small and capital letters take turns | tHe qUiCk bRoWn fOx jUmPs oVeR ThE LaZy dOg |
| camelCase | Words joined, each new word capitalized, first word small | theQuickBrownFoxJumpsOverTheLazyDog |
| snake_case | Words joined with _ in lowercase | the_quick_brown_fox_jumps_over_the_lazy_dog |
| kebab-case | Words joined with – in lowercase | the-quick-brown-fox-jumps-over-the-lazy-dog |
Upper case to lower case and back are the two most used conversions: fixing text typed with Caps Lock on, or turning a heading into capitals. camelCase, snake_case and kebab-case are for code, file names and web addresses; they drop punctuation and join the words.
Title case rules: which small words stay lowercase
Title Case on this page follows one simple rule: capitalize the first word, the last word and every word in between, except these 19 short words, which stay lowercase unless they open or close the title: a, an, and, as, at, but, by, for, in, nor, of, on, or, per, the, to, up, via, vs.
| Input | Title Case | Capitalized Case |
|---|---|---|
| the lord of the rings | The Lord of the Rings | The Lord Of The Rings |
| a tale of two cities | A Tale of Two Cities | A Tale Of Two Cities |
| what is it for | What Is It For | What Is It For |
| gone with the wind | Gone With the Wind | Gone With The Wind |
| war and peace | War and Peace | War And Peace |
| how to train your dragon | How to Train Your Dragon | How To Train Your Dragon |
| the art of war | The Art of War | The Art Of War |
| pride and prejudice | Pride and Prejudice | Pride And Prejudice |
Style guides do not agree on the exact list. AP, Chicago and APA each have their own rules for prepositions and for words of four letters or more, so for a school paper or a publication, check the guide you are asked to follow and adjust a word or two by hand. If you want every word capitalized, use Capitalized Case, which is what Microsoft Word calls “Capitalize Each Word”.
Sentence case vs title case
Sentence case writes a heading like a normal sentence: only the first word and names get a capital, as in “How to change text case on a phone”. Title case capitalizes the main words: “How to Change Text Case on a Phone”. News sites and apps often use sentence case because it is easier to read; book and film titles usually use title case. The Sentence case style here capitalizes the first letter after a full stop, question mark, exclamation mark or line break; it cannot know which words are names, so add those capitals yourself.
Convert case without breaking emoji, accents and symbols
The converter uses your browser’s own Unicode case rules, so it works for accented letters and other alphabets, not just A–Z. On October 10, 2026 we ran these inputs through the tool in Node.js 22 (the same JavaScript engine as Chrome):
| Input | Style | Output | What happened |
|---|---|---|---|
| straße | UPPERCASE | STRASSE | German ß has no single capital in this rule set, so it becomes two letters: the text gets longer |
| İSTANBUL | lowercase | i̇stanbul | Turkish dotted İ becomes i + a combining dot (2 code points); Turkish readers expect plain i |
| ΟΔΟΣ ΣΟΦΙΑ | lowercase | οδος σοφια | Greek Σ becomes final ς at the end of a word and σ elsewhere, as Greek spelling requires |
| ĐƯỜNG PHỐ HÀ NỘI | lowercase | đường phố hà nội | Vietnamese letters with two marks convert correctly |
| džungla | Title Case | Džungla | The digraph dž takes its own title-case form Dž, not the all-capital DŽ |
| ＦＵＬＬ | lowercase | ｆｕｌｌ | Full-width letters have their own lowercase forms |
| 𝐁𝐨𝐥𝐝 Text | lowercase | 𝐁𝐨𝐥𝐝 text | Bold “fancy” letters have no case, so only the normal word changes |
| hello 👋 world 🇺🇸 | UPPERCASE | HELLO 👋 WORLD 🇺🇸 | Emoji and flags are not letters and pass through unchanged |
Two cases need care. Turkish and Azeri use dotless ı and dotted İ as separate letters, and a general converter follows the international rule, not the Turkish one; check Turkish text by eye. And fancy Unicode letters such as 𝐁𝐨𝐥𝐝 or 𝓢𝓬𝓻𝓲𝓹𝓽 are symbols, not letters with a case, so to restyle them, retype the plain text and style it again with our fancy text generator.
Change case in Word, Google Docs and Excel
In Microsoft Word, select the text and press Shift + F3 until you get lowercase, UPPERCASE or Capitalize Each Word, or use the Change Case button (Aa) on the Home tab, which also has Sentence case and tOGGLE cASE. That is how Microsoft Support describes it (checked October 10, 2026). In Google Docs, use Format › Text › Capitalization. In Excel and Google Sheets, the formulas =UPPER(A1), =LOWER(A1) and =PROPER(A1) give capitals, small letters and capitalized words.
On a phone there is no built-in button to change the case of text you already typed. Open this page in your phone’s browser, paste the text, pick a style and copy it back; the tool works the same on Android and iPhone.
Case styles to copy
“Case Converter” in 20 styles
Letters whose case is special
Tap to copy. These are the letters that most often trip up a case converter or a keyboard.
Quick conversions to copy
Kaomoji for shouting and whispering
ALL CAPS reads like shouting and all lowercase like a whisper; these kaomoji say the same thing without words.
Letter and case emoji
Where converted text works
Converted text is ordinary text, so it pastes into any app, form or document. We have not yet tested each style inside WhatsApp, Instagram, iMessage or Discord on real phones, so this page does not promise how each app shows it. One thing to know: some apps and sites change the case of what you type themselves, for example by capitalizing the first word of a message, so check the preview before you send.
Case converter FAQ
How do I change uppercase to lowercase without retyping?
Paste the text in the box at the top of this page, choose lowercase and tap Copy. In Word you can also select the text and press Shift + F3.
What is the difference between Title Case and Capitalized Case?
Capitalized Case gives every word a capital letter. Title Case keeps short words such as a, of, the and and in lowercase unless they are the first or last word.
Can I convert case on my phone?
Yes. Open this page in your phone’s browser, paste the text, pick a style and copy the result. Phone keyboards cannot change the case of text you already typed.
Why did my text get longer in uppercase?
Some letters become two letters in capitals, such as the German ß, which becomes SS.
Is my text uploaded?
No. The case converter runs in your browser and the text you paste is not sent to our server.
Last checked October 10, 2026 by the TwiceText Editorial Team.