Text Tools
Change the case of text without retyping it
Paste text, pick a case, copy the result. Twelve of them, including the programmer cases — and Title Case that follows the actual rule rather than capitalising every word and hoping.
Convert to
Example: The Best of the Rest
Type above and the converted text appears here.
- Runs in your browser
- No account required
- Free to use
How it works
Title Case is not “capitalise every word”
The rule every English style guide agrees on: articles, short conjunctions and short prepositions stay lowercase in the middle of a title, but the first and last words are always capitalised whatever they are. So it is “The Best of the Rest”, not “The Best Of The Rest” — and “What Are You Waiting For” keeps its capital “For” because it ends the line. Both rules are applied here, and “Capitalise Each Word” is offered separately for when that is genuinely what you want.
The programmer cases understand what they are given
Converting “myVariableName” to snake_case has to split the camel humps first, or you get “myvariablename”. Every case here breaks the input into words on capitals, spaces, hyphens and underscores before reassembling it, so you can convert from any of these cases to any other without a round trip through spaces.
Sentence case follows the punctuation
It lowercases everything, then capitalises the first letter after each full stop, question mark or exclamation mark. That handles a pasted paragraph of shouted capitals in one pass — which is the usual reason for reaching for it.
What it does
Twelve cases with visible examples
Every option shows what it does to the same sample phrase, so the difference between Title Case and Capitalise Each Word is on screen rather than something you have to test for.
The developer set
camelCase, PascalCase, snake_case, kebab-case and CONSTANT_CASE — for renaming a batch of variables, database columns or CSS classes without doing it by hand.
The awkward ones too
aLtErNaTiNg and iNVERSE case, which exist mostly for emphasis and jokes but are genuinely tedious to type. Alternating counts over letters rather than characters, so punctuation does not knock the rhythm out of step halfway through.
Copy or download
One button for the clipboard, one for a .txt file, and the conversion happens as you type so there is nothing to wait for.
Practical advice
Getting a better result
- Converting to Sentence case is the fastest fix for a block of text pasted in all capitals — it lowercases everything and then puts the sentence starts back.
- Title Case lowercases minor words only in the middle. If your style guide capitalises everything regardless, use Capitalise Each Word instead.
- Going from snake_case to camelCase and back is lossless, because both are rebuilt from the same split. Going through UPPERCASE is not — the word boundaries are gone by then.
- Proper nouns are not protected. Lowercasing a paragraph will lowercase names too, so it is worth a read-through afterwards.
Questions
Things people ask
Which words does Title Case leave lowercase?
Articles (a, an, the), coordinating conjunctions (and, but, or, nor, yet, so) and short prepositions (at, by, for, in, of, on, to, up, via) — but only when they fall in the middle. The first and last words of a title are always capitalised. Style guides disagree about prepositions longer than four letters, so the list stops where the agreement does.
Can it convert camelCase to snake_case?
Yes. The input is split on capital letters as well as on spaces, hyphens and underscores, so “myVariableName” becomes “my_variable_name” rather than one long lowercase run. That works between any two of the programmer cases.
Does it work with accented or non-English text?
Yes for changing case — the conversion uses the browser’s own Unicode-aware casing, so é becomes É correctly. The Title Case word list is English, so minor words in other languages will be capitalised rather than left lowercase.
Is my text sent anywhere?
No. The conversion is a string operation running in your browser, and the page makes no network requests. Nothing is uploaded, stored or logged.
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