How this works in your browser
Each style applies a different rule to the letters while leaving punctuation, numbers and spacing untouched. Uppercase and lowercase are direct transformations. Title Case capitalises the character following each word boundary. Sentence case capitalises after sentence-ending punctuation. camelCase removes the separators entirely and capitalises each subsequent word, producing a valid identifier. The one thing no automatic conversion can do is recognise proper nouns, so Sentence case will lowercase a name that should stay capitalised, which is worth a quick scan of the output rather than trusting it blindly.
Who uses Case Converter
Fixing caps lock accidents
Rescue text typed entirely in capitals without retyping it.
Formatting headlines
Convert a phrase into Title Case for a heading or title.
Writing code identifiers
Turn a descriptive phrase into a camelCase variable name.
Cleaning up imported data
Normalise inconsistent casing across pasted content.
Frequently asked questions
What case styles are supported?
UPPERCASE, lowercase, Title Case, Sentence case, and camelCase.
Is there a text length limit?
No hard limit - conversion happens instantly in your browser regardless of length.
Will punctuation and numbers be affected?
No, only letters are affected by casing rules; punctuation, numbers, and spacing are preserved.
What is the difference between Title Case and Sentence case?
Title Case capitalises the start of every word, which suits headings and titles. Sentence case capitalises only the first word and any proper nouns, which is how a normal sentence reads. Publications differ on whether Title Case should skip short words like 'and' and 'of', so check a style guide if one applies.
How do I fix text typed with caps lock on?
Convert to lowercase first, then to Sentence case. Going straight from all-caps to Sentence case works too, but the two-step route makes it obvious what happened and lets you check the intermediate result before committing.
When would I need camelCase?
In code, where spaces are not allowed in names. JavaScript and Java conventionally use camelCase for variables and functions, so converting a descriptive phrase into a valid identifier is the usual reason to reach for it.
Is my text uploaded anywhere?
No. The conversion runs in your browser, so pasting an unpublished draft transmits nothing.