Case Converter

Case problems arrive constantly: a headline typed with Caps Lock on, product titles pasted in SHOUTING, notes that need to become proper sentences. This converter fixes them in one click, with seven transformations covering the cases that actually occur.

Title Case follows headline convention — small words like “and”, “of” and “the” stay lowercase unless they come first — while Capitalized Case simply uppercases every word’s first letter. Sentence case lowercases everything then capitalises the start of each sentence, the fastest fix for accidental Caps Lock paragraphs. tOGGLE cASE inverts every letter, and “Remove extra spaces” cleans the stray whitespace that pasting from PDFs and emails leaves behind.

Every transformation is a simple string operation in your browser — the text never leaves the page, and the result is ready to copy immediately.

• Headlines and titles — convert draft headings to proper Title Case for articles and slides.
• Caps Lock accidents — turn a SHOUTED paragraph back into sentence case without retyping.
• Data cleanup — normalise pasted names, labels or product titles to a consistent case.
• Code-adjacent text — quickly uppercase constants or lowercase identifiers while writing.
• Fixing pasted text — strip the doubled spaces and blank lines PDFs and emails inject.

• Sentence case capitalises the first letter after sentence-ending punctuation — proper nouns mid-sentence stay lowercase and may need a manual touch-up.
• Title Case follows one common headline convention; style guides differ on which small words to lowercase.
• Transformations apply to the whole text box, not a selection — convert in pieces if only part needs changing.