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Alternating Case Converter (plus Inverse and Toggle Case)

Convert text to uppercase, lowercase, title case and more — in seconds.

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Text cases

For developers

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Every case at once

Click a card to show it as the main result, or copy it straight away.

Text cases

  • THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG. IT'S A CLASSIC TEST SENTENCE FROM THE USA.

  • the quick brown fox jumps over the lazy dog. it's a classic test sentence from the usa.

  • The quick brown fox jumps over the lazy dog. It's a classic test sentence from the USA.

  • The Quick Brown Fox Jumps Over the Lazy Dog. It's a Classic Test Sentence From the USA.

  • The Quick Brown Fox Jumps Over The Lazy Dog. It's A Classic Test Sentence From The USA.

  • tHe QuIcK bRoWn FoX jUmPs OvEr ThE lAzY dOg. It'S a ClAsSiC tEsT sEnTeNcE fRoM tHe UsA.

  • THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG. IT'S A CLASSIC TEST SENTENCE FROM THE usa.

  • tHE qUICK bROWN fOX jUMPS oVER tHE lAZY dOG. iT'S a cLASSIC tEST sENTENCE fROM tHE uSA.

For developers

  • theQuickBrownFoxJumpsOverTheLazyDogItsAClassicTestSentenceFromTheUsa

  • TheQuickBrownFoxJumpsOverTheLazyDogItsAClassicTestSentenceFromTheUsa

  • the_quick_brown_fox_jumps_over_the_lazy_dog_its_a_classic_test_sentence_from_the_usa

  • the-quick-brown-fox-jumps-over-the-lazy-dog-its-a-classic-test-sentence-from-the-usa

  • THE_QUICK_BROWN_FOX_JUMPS_OVER_THE_LAZY_DOG_ITS_A_CLASSIC_TEST_SENTENCE_FROM_THE_USA

  • the.quick.brown.fox.jumps.over.the.lazy.dog.its.a.classic.test.sentence.from.the.usa

Three playful text styles that people often mix up. Pick one below to convert your text instantly and see exactly how each rule works.

Alternating vs. inverse vs. toggle case

The same input in all three styles:

Before Hello World, this is a Test.
aLtErNaTiNg cAsEhElLo WoRlD, tHiS iS a TeSt.
iNVERSE cASEhELLO wORLD, THIS IS A tEST.
tOGGLE cASEhELLO wORLD, tHIS iS a tEST.
StyleRuleDepends on original case?
aLtErNaTiNg cAsELetters alternate small/capital, starting small. Spaces and punctuation don't break the rhythm.No
iNVERSE cASEEvery letter's case is flipped: capitals become small, small become capitals.Yes
tOGGLE cASEEach word's first letter is small and the rest are capitals.No

When to use each style

  • Alternating case is the classic sarcastic meme style for social media comments and captions.
  • Inverse case fixes text typed with Caps Lock accidentally on — “hELLO tHERE” becomes “Hello There”.
  • Toggle case is mostly decorative, for usernames, gaming tags and eye-catching posts.

Screen readers may spell out mixed-case text letter by letter, so avoid these styles for important information.

More examples

aLtErNaTiNg cAsE
Before

this is fine

After

tHiS iS fInE

iNVERSE cASE
Before

cAPS lOCK wAS oN

After

Caps Lock Was On

tOGGLE cASE
Before

level up your game

After

lEVEL uP yOUR gAME

Frequently asked questions

What is alternating case called?

It's also called mocking case, sarcasm case or studly caps.

Why do inverse and toggle case sometimes give the same result?

If each word in your input starts with a capital and the rest is small (Hello World), flipping it gives hELLO wORLD — the same as toggle case. With any other input the two differ, because toggle case ignores the original case.