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Paste text and convert it between UPPERCASE, lowercase, Title Case, Sentence case and Capitalized Case with one click — then copy the result. No more retyping a headline because caps lock betrayed you.
Text case is the capitalisation pattern of a piece of writing. Different jobs need different cases: Title Case for headlines, Sentence case for body copy and most modern interfaces, lowercase for URLs, slugs and code, and UPPERCASE sparingly for labels and warnings.
Converting by hand is slow and error-prone, especially in long pasted text with mixed formatting. This tool normalises the whole block instantly and shows word and character counts so you can sanity-check the result before using it.
Sentence case capitalises the first letter of each sentence and proper nouns — the default of books, articles and most modern interfaces. Title Case Capitalises the First Letter of the Main Words — the traditional style of headlines, book titles and article titles in US publishing. Capitalized Case (every word) is Title Case without the small-word exceptions, common in navigation labels and buttons. UPPERCASE renders everything in capitals: emphasis, warnings, acronyms and short labels — and, in paragraphs, a reading experience most people describe as shouting. lowercase is the case of URLs, email addresses, file names and code, where capitals can be errors rather than style.
This converter applies each system to the whole block at once, including the fiddly parts: Title Case keeps small joining words (a, an, the, and, of, in, to) lowercase mid-title while still capitalising the first and last words.
Headlines: choose Title Case or Sentence case and apply it site-wide — mixed styles across one blog look like several authors fighting. Body text: Sentence case, always. Buttons and menus: Sentence or Capitalized, short either way. URLs and slugs: lowercase with hyphens (the Slug Generator in this suite exists for exactly that job). Legal and formal documents: follow the convention of the document — defined terms are usually Capitalized, and consistency there is a correctness issue, not a taste one.
The everyday rescue this tool performs most: text pasted from a caps-lock accident, a PDF that extracted in all-caps, or a headline drafted in one style that must match a site using another. Convert, then proofread the proper nouns — no converter can know that "apple" the fruit and "Apple" the company differ, so names deserve one human glance after any case change.
Converters follow rules; language has exceptions, and they cluster in the same places. Acronyms: a lowercasing pass turns "SEO" into "seo" and "NASA" into "nasa" — correct in a slug, wrong in prose. Names: "McDonald", "iPhone" and "eBay" all break naive capitalisation in different directions. Mixed source text — half a document in caps from a PDF, half typed normally — converts cleanly by the numbers but still wants a human skim for exactly these spots.
The workflow professionals use: convert the whole block for speed, then proofread once with your eyes hunting only three things — company and product names, acronyms, and the letter "I" (a sentence-case pass can leave a standalone "i" if the original was noisy). That single targeted pass takes a minute and catches nearly everything a rule-based converter can miss. For anything legal, financial or printed, the same pass is not optional.
One more habit worth adopting: keep the original text until the converted version is safely in place. Conversion is destructive in the box — paste, convert, copy out, and only then clear it.
Conversion is instant; verification is one skim. Hunt the three known weak spots — acronyms the converter flattened (Seo back to SEO), brand names with internal capitals (iPhone, YouTube, WordPress), and place names that must stay capitalised in every case. Then read the first line of each paragraph: sentence and title conversions make their few mistakes at boundaries, where punctuation confused the pattern.
Privacy: this tool runs entirely in your browser. Nothing you paste is uploaded, stored or tracked — close the tab and it is gone.
Title Case capitalises the main words but keeps small joining words (a, the, and, of) lowercase. Capitalized Case capitalises the first letter of every word, including those small words.
Title Case is the traditional headline style in US publishing; Sentence case is common in modern product and tech writing. Either is fine — consistency across your site matters more than the choice.
Yes — run it through lowercase or Sentence case and the shouting disappears, with capitals restored only where the case rules put them.
No. Only letter capitalisation changes; spacing, punctuation and numbers stay exactly as they were.
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