Change the case of any text in one click. Convert to UPPERCASE, lowercase, Title Case or Sentence case — then copy the result.
Result:
1. Type or paste your text. 2. Click UPPERCASE, lowercase, Title Case or Sentence case. 3. Click Copy Result to copy the converted text.
Case means whether letters are capital (upper case) or small (lower case). A case converter changes the case of a whole piece of text in one click, instead of retyping it. Students, writers, office workers and social media users all need it: a heading typed in small letters needs to be in Title Case, a shout typed in capitals needs to be in normal sentence case, and a form may ask for a name in UPPERCASE. This free case converter handles the four cases people use most, and it copies the result for you.
Retyping long text just to change its case is slow and boring, and it is easy to miss a letter. A converter does the whole job instantly and correctly, even for a full page of text. It is useful for fixing text copied from a PDF, tidying up a list of names, formatting a title, or changing an email written in capitals into normal text before you send it.
Take the text "hello world, welcome to ai tricks tools". UPPERCASE gives "HELLO WORLD, WELCOME TO AI TRICKS TOOLS". Lowercase gives the same as the original. Title Case gives "Hello World, Welcome To Ai Tricks Tools". Sentence case gives "Hello world, welcome to ai tricks tools". Each style has a job: UPPERCASE is for warnings and labels, lowercase is for emails and usernames, Title Case is for headings and book titles, and Sentence case is for normal writing.
UPPERCASE turns every letter into a capital letter. Lowercase turns every letter into a small letter. Title Case capitalises the first letter of every word. Sentence case capitalises the first letter of the text and the first letter after every full stop, question mark or exclamation mark, and makes the rest small. Numbers, spaces and punctuation are not changed by any of the four cases. This converter works in your browser, so your text never leaves your device.
Do not write whole emails in capitals. On the internet, all capitals reads like shouting, so use Sentence case for normal writing. Use Title Case for headings. Headings, book titles and names look neat in Title Case. Check names after converting. Title Case will change names like "McDonald" to "Mcdonald", so fix special names by hand. Use lowercase for emails and usernames. Many systems treat capital and small letters as different, so lowercase is safest. Copy before you close the page. The converted text is not saved, so copy it before you leave.
Suppose a colleague sends you an email written in all capitals: "PLEASE SEND THE REPORT BY FRIDAY". It reads like shouting, so paste it into the converter above and click Sentence case. The result is "Please send the report by friday", and you only need to fix "friday" to "Friday" by hand. Now try the heading "the quick brown fox" in Title Case: it becomes "The Quick Brown Fox", which is perfect for a title. One click fixes the whole text, and you only check the special words afterwards.
Writing whole emails in capitals. On the internet, all capitals reads like shouting, so use Sentence case for normal writing. Trusting Title Case for names. Title Case changes "McDonald" to "Mcdonald" and "iPhone" to "Iphone", so fix special names by hand. Using lowercase for headings. A heading in all small letters looks careless, so use Title Case for titles. Forgetting to copy before you leave. The converted text is not saved, so copy it before you close the page. Converting a password. Never paste a password into any converter: changing its case changes the password itself.
Pro Tip: Use Sentence case for emails and messages, Title Case for headings and book titles, and lowercase for email addresses and usernames, which are usually case-sensitive.
Note: This converter changes only letters. Numbers, spaces and punctuation marks stay exactly as they are.
More practice: Try this example: take the sentence "welcome to the ai tricks tools website" and convert it to Title Case. The result is "Welcome To The Ai Tricks Tools Website". Notice that the short word "to" is capitalised too, and "Ai" should really be "AI", so fix those two words by hand. Now take the heading "TOP 10 FREE TOOLS FOR EVERYDAY USE" and convert it to Sentence case. You get "Top 10 free tools for everyday use", which reads much more calmly. Finally, convert the same heading to lowercase to see how it would look as a web address or a file name. Three clicks, three useful versions of the same words, and each one fits a different job.
What is Title Case? Title Case capitalises the first letter of every word, like "The Quick Brown Fox". It is used for headings, book titles and names.
What is Sentence case? Sentence case capitalises only the first letter of a sentence, like "The quick brown fox jumps over the lazy dog." It is the normal case for writing.
When should I use UPPERCASE? Use it for short labels, warnings and headings where you want to catch attention. Do not write long text in capitals, because it is hard to read and looks like shouting.
Does the converter change numbers or punctuation? No. Numbers, spaces and punctuation marks stay exactly as they are. Only letters change case.
Can I convert a whole document? Yes. Paste the whole text into the box and click a case button. Very long text may take a second, but it will convert all of it.
Is my text saved anywhere? No. The conversion happens in your browser only. Your text never leaves your device and is never sent to our servers.
What is the difference between Title Case and Sentence case? Title Case capitalises every word, like "The Quick Brown Fox". Sentence case capitalises only the first word, like "The quick brown fox jumps over the lazy dog."
Should I use UPPERCASE for headings? Short headings in capitals can look strong, but long text in capitals is hard to read and looks like shouting. Use it sparingly.