Convert Case
Paste your text, then pick a case. Your text is converted instantly in your browser and is never uploaded or stored.
Characters: 0Words: 0Lines: 0
Keep proper nouns (built-in list on)
After Capitalized, Title and Sentence case, names such as London, NASA or iPhone and the word I get their capitals back instead of being lowercased.
Up to 200 words, saved in this browser only. Everyday words such as “may” and “march” are not in the built-in list, so add them here if you want them kept.
Case types with examples
Starting text: The Lord of the Rings
lower case
Every letter becomes a small letter.
the lord of the rings
UPPER CASE
Every letter becomes a capital letter.
THE LORD OF THE RINGS
Capitalized Case
The first letter of every word becomes a capital.
The Lord Of The Rings
Title Case
Headline style: small words like "of" and "the" stay lowercase unless first or last.
The Lord of the Rings
Sentence case
Only the first letter of each sentence is a capital.
The lord of the rings
aLtErNaTiNg cAsE
Small and capital letters take turns on every letter.
tHe LoRd Of ThE rInGs
iNVERSE cASE
Capitals become small letters and small letters become capitals.
tHE lORD OF THE rINGS
Spaces → hyphens (a b → a-b)
Spaces between words are replaced with hyphens; capitals are kept.
The-Lord-of-the-Rings
What is a case converter?
A case converter changes the capital and small letters in your text without retyping it. Paste the text, click a button and the whole passage switches to UPPER CASE, lower case, Title Case, Sentence case and more.
It is most useful when you typed a paragraph with Caps Lock on, need to tidy a list of headings, or want consistent capitalisation before pasting text into a spreadsheet, a document or code.
When to use each case
- UPPER CASE: acronyms, warning labels and short headings.
- lower case: email addresses, web addresses, hashtags, and data you want to compare without capitals getting in the way.
- Capitalized Case: names and product titles where every word starts with a capital.
- Title Case: headlines, blog post titles and book names, where small words like "of" and "the" stay lowercase.
- Sentence case: paragraphs, button text and most modern headings.
- aLtErNaTiNg and iNVERSE cASE: memes, social posts and playful text.
How to change case in Word, Google Docs and Excel
If you do not want to open another program, paste the text into the box above instead.
- Microsoft Word: select the text and press Shift+F3 to cycle through lowercase, UPPERCASE and Capitalize Each Word, or use the Change Case button on the Home tab.
- Google Docs: select the text, then choose Format, Text, Capitalization.
- Excel and Google Sheets: use =UPPER(A1), =LOWER(A1) or =PROPER(A1) in a new cell, then copy the results.
Your text stays private
Everything runs in your browser. The text you paste is not uploaded, stored or shared, so it is safe to use for drafts and private notes.
How to use the Convert Case tool
- Type or paste your text into the box.
- Click the case you want, for example UPPER CASE or Title Case.
- Click the copy icon above the text and paste the result where you need it.
Frequently asked questions
What is the difference between Title Case and Capitalized Case?
Capitalized Case makes the first letter of every word a capital. Title Case follows headline style and keeps small words like "of", "the" and "and" lowercase unless they are the first or last word.
Is my text sent to a server?
No. The conversion happens inside your browser, so your text never leaves your device.
Is there a limit on how much text I can convert?
There is no fixed limit. Very large documents may feel slower, depending on your device.