What is sentence case?
Writing that capitalizes only the first word of each sentence, names and the word I, like this answer. Most body text uses it.
Case Converter
Paste text to change it to uppercase, lowercase, sentence case or title case, or to camelCase for code. Your text is never uploaded.
Writing
Sentence caselower caseUPPER CASETitle CaseCapitalized CasetOGGLE cASE
A capital at the start of each sentence and on I.
Code
camelCasePascalCasesnake_casekebab-caseSCREAMING_SNAKEdot.case
Names for variables, files and keys, one per line.
Title style
AP, APAChicagoMLA
Used when Title Case is picked.
Your text
In Sentence case
The result changes the moment you type, paste or pick another case, with no button to press.
Free, with no sign-up, no length limit and nothing sent to a server.
- Title case in AP, APA, Chicago or MLA
- camelCase, snake_case and more for code
- Converts text from Word files and PDFs
How to convert case online
Turn uppercase into lowercase, or any case into another, in three steps.
Paste text to convert
Type or paste in the box, or open a TXT, Word or PDF file. The converted copy appears beside it as you type.
Change the case
Pick Sentence case, lower case, UPPER CASE, Title Case or a code style such as camelCase. It redraws at once.
Copy the result
Press Copy to put the new text on your clipboard, or Download for a .txt file. Your own text stays as typed.
All caps to lowercase, without retyping
Caps lock left on, a heading pasted from a PDF in capitals, a spreadsheet export that shouts every name: all of it can be fixed without typing a word again. Paste the text, pick lower case or Sentence case and copy the result.
Sentence case is usually the better fix for caps lock text. It lowers every letter, then puts capitals back at the start of each sentence and on the word I, so the paragraph reads as if it was typed normally.
Toggle case swaps every letter instead. It suits text typed with caps lock on while Shift was held for capitals, which comes out as tHIS: toggling turns it back into This, with the capitals where you meant them.
Capitalize titles: AP, APA, Chicago, MLA
Title Case capitalizes the main words of a headline and keeps small words lowercase, but style guides disagree on which words count as small. Pick the guide your school, journal or newsroom follows, and each line becomes its own title.
AP and APA lowercase articles, conjunctions and prepositions of three letters or fewer, so With and From get capitals. Chicago lowercases every preposition however long it is, and MLA does the same while also keeping so and yet small.
Every style capitalizes the first and last word and the first word after a colon. Words such as up, in or out can be a preposition or part of a verb (Log In), so read those once by eye before you publish.
Camel case, snake case and kebab case
Code names cannot hold spaces, so each language has its own habit: camelCase for JavaScript variables, PascalCase for classes, snake_case in Python and SQL, kebab-case in URLs and CSS, SCREAMING_SNAKE_CASE for constants and dot.case for config keys.
Paste a list of names, one per line, and each line converts on its own. Words are found at spaces, punctuation and the humps of existing names, so userFirstName, user_first_name and User First Name all give the same result.
What this case converter can do
Title case converter
Capitalize headings by AP and APA, Chicago or MLA rules, with every line as its own title.
Sentence case converter
Lowers every word, then capitalizes each sentence start and the word I, so shouty text reads well.
Camel case converter
Turn names into camelCase, PascalCase, snake_case, kebab-case, SCREAMING_SNAKE_CASE or dot.case.
Keeps NASA and iPhone
Acronyms and brand names with inner capitals stay as written unless most of the line is in capitals.
Toggle case
Swap the case of every letter, like Toggle Case in Word, to undo text typed with caps lock left on.
Opens Word and PDF files
Open a TXT, Word or PDF file and its text lands in the box, converted and ready to copy or save.
Your text stays on your device
Every case change is worked out in this tab, so what you paste is never sent anywhere.
Processing
Case is changed by code running in your browser. Files you open are read here too, never uploaded.
Storage
Your text and chosen case are kept in this browser, so a refresh keeps them. Clear removes them all.
Account
No sign-up, no email and no daily cap. Convert as much text as you like, as many times as you need.
Case and capitalization questions
What does title case mean?
A style that capitalizes the main words of a title and keeps small words such as of and the lowercase: The Lord of the Rings.
What words are not capitalized in a title?
Articles (a, an, the), short conjunctions (and, but, or) and prepositions (in, of, to), unless they come first or last.
Do you capitalize after a colon?
In a title, always: it starts a subtitle. In a sentence, AP and APA do when a full sentence follows; Chicago usually does not.
How do I change case in Word?
Select the text, then press Shift+F3 to cycle lowercase, UPPERCASE and Capitalize Each Word, or use Aa on the Home tab.
What is the shortcut for uppercase?
Shift+F3 in Microsoft Word. Excel has no shortcut, so use =UPPER(A1), and Google Docs uses Format, Text, Capitalization.
What is camel case in programming?
Words joined with no spaces and a capital at the start of each word after the first, like firstName. JavaScript uses it a lot.
Sentence case vs title case: when to use each?
Title case suits book, film and article titles. Sentence case suits body text, and APA uses it for titles in reference lists.
Still stuck, or found a problem? Email dobliquestudio@gmail.com and we will help.