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Paste your text once, then flip it between UPPERCASE, lowercase, Title Case, Sentence case and more with a single click — plus a one-click fix for accidental double spaces. For anyone who has ever retyped a paragraph because Caps Lock betrayed them.
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Everyone knows the moment: you look up from the keyboard and discover three paragraphs written entirely in capitals because Caps Lock was on — or a headline typed in lowercase that an editor wants in Title Case, or a product list that needs to be uniform before it goes into a spreadsheet. Retyping is slow and error-prone. Converting is instant and exact. This tool applies the standard case rules to your whole text at once, preserves your line breaks, and shows a live word and character count so you can confirm nothing was lost in the shuffle.
The regular users are a varied crowd. Writers and students fixing headings and titles. Social media managers who draft in one style and publish in another. Data-entry staff standardizing names and addresses ("JOHN SMITH", "john smith" and "John Smith" should not be three different customers). Developers renaming variables and labels. And anyone copying text from a PDF or an old system that shouts everything in capitals, who wants it to read like a human wrote it.
Take the sentence "the quick brown fox jumps over the lazy dog" and watch what each button does:
UPPERCASE → THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG — for labels, warnings and acronyms; use sparingly, because on the internet it reads as shouting.
lowercase → the quick brown fox jumps over the lazy dog — for normalizing messy data and casual text.
Title Case → The Quick Brown Fox Jumps Over The Lazy Dog — every word capitalized; the convention for headlines, book titles and headings.
Sentence case → The quick brown fox jumps over the lazy dog — only the first word and proper nouns capitalized; how normal prose (and most modern interfaces) are written.
Capitalize Each Word works like Title Case across every line — handy for lists of names or menu items.
aLtErNaTiNg → ThE qUiCk BrOwN fOx — alternating letters; mostly for playful social posts and memes.
Remove Extra Spaces → collapses runs of spaces into one — the silent fix for text pasted from PDFs and emails.
On ordinary text they look the same — every word starts with a capital. "Capitalize Each Word" applies that rule mechanically to every line, which is what you want for lists and labels. Title Case follows the same convention used for headlines and publication titles.
No. Only the letters change case; your paragraph structure stays intact. The one exception is the dedicated Remove Extra Spaces button, which deliberately collapses multiple spaces into single ones.
It capitalizes the first word of each sentence. It can't know that a mid-sentence word is a name, so give the result a quick skim and re-capitalize people, places and brands — a ten-second job that no automated tool can fully do for you.
No practical limit — full chapters convert instantly, because the work happens in your browser rather than on a server.
No. Like every ToolNova tool, the conversion happens locally in your browser. Paste confidential drafts without worry.
The fastest undo is to click a different case — conversions are reversible as long as the original information survives. Note that lowercasing is partly destructive: “McDonald” becomes “mcdonald”, and no tool can know the capital D belonged there. For precious text, keep a copy of the original.