Case Converter: Change Text to Upper, Lower, Sentence or Title Case

Paste your text, pick a case and copy the result. No retyping, no sign-up, and your text never leaves your device.

Every case, one click

  • Sentence case puts a capital at the start of each sentence. Use it to fix text typed with caps lock on.
  • lower case makes every letter small. Handy for emails, usernames and data.
  • UPPER CASE makes every letter a capital. Use it for headings, labels and forms that ask for block letters.
  • Capitalized Case capitalises the first letter of every word.
  • aLtErNaTiNg cAsE switches between lower and upper case for memes and sarcastic replies.
  • Title Case follows headline rules and keeps small words lowercase. For APA, Chicago, AP or MLA, use the Title Case Converter.
  • InVeRsE CaSe swaps every capital for a small letter and the other way round.

As you type you also get live character, word, sentence and line counts, so you can check limits for posts, meta descriptions and essays.

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Text Tools

Clean, convert, count and analyse text. Fix capitalisation, remove duplicates and line breaks, extract emails and more.

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Code & Data

Format, validate, encode and convert code and data: JSON, CSV, YAML, HTML, CSS, Base64, regex, QR codes and more.

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Font Styles

Copy-and-paste fonts for Instagram, TikTok, Discord, WhatsApp and bios: bold, cursive, bubble, gothic, glitch and more.

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Random Generators

Fair random numbers, letters, dates, choices, passwords, UUIDs and a yes or no wheel, powered by secure randomness.

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Frequently asked questions

What does a case converter do?

It changes the capitalisation of your text without retyping it. Paste your text, click a case such as Sentence case or UPPER CASE, and copy the result.

What is the difference between Title Case and Capitalized Case?

Capitalized Case gives every word a capital letter. Title Case follows headline rules, so small words like "and", "of" and "the" stay lowercase unless they start or end the title.

How do I stop names from changing?

Open "Keep names and acronyms exactly as you write them", add each name or acronym on its own line, and the converter will keep your spelling.

Is my text saved or uploaded?

No. Every tool on CaseConverterTool runs in your browser, so your text never leaves your device.

How do I change case in Word or Google Docs?

In Word, select the text and press Shift+F3 to cycle through cases. In Google Docs, use Format > Text > Capitalisation. For more options, such as sentence case and alternating case, paste your text here.