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UtilLab

Convert Case

Enter your text and choose the formatting style you want to apply.

Type a text like 'Hello World' and convert it to UPPERCASE, lowercase, Capitalized, etc.

Character Count
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Characters (no spaces)
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Word Count
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Sentence Count
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Reading time
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Guide

Text case conversions explained

What each conversion does

  • Sentence format: only the first letter is capitalised, the rest is lowercase. "hELLO wORLD" becomes "Hello world".
  • Lowercase / Uppercase: every letter is converted. Useful for normalising data or for emphasis.
  • Capitalized and Title format: the first letter of every word is capitalised: "the quick brown fox" becomes "The Quick Brown Fox".
  • Alternating format: letters switch between lower and upper case, as in "hElLo". Mostly used for playful, mocking text.
  • Inverse format: swaps the case of every letter, turning "Hello" into "hELLO".

When it saves time

Text pasted from PDFs, spreadsheets or chat apps frequently arrives in ALL CAPS or with inconsistent capitalisation. Instead of retyping, paste it, apply a conversion and copy it back. The same trick cleans up headlines, product titles, mailing-list names and file labels.

The counters under the editor report characters (with and without spaces), words, sentences, lines and an estimated reading time, which is handy for meeting limits such as social post lengths, meta descriptions or essay word counts.

Good to know

  • Title format capitalises every word. Style guides such as AP or Chicago keep short words like "of" and "the" lowercase, so review headlines before publishing.
  • You can undo up to 50 steps, so experimenting is safe.
  • Your text is processed locally in the browser. It is never uploaded, stored or added to the page address.

Frequently Asked Questions

What types of text conversion are available?
The tool offers seven conversion formats: Uppercase (ALL CAPS), Lowercase (all lowercase), Sentence case (Only the first letter of each sentence capitalized), Title Case (Every Major Word Capitalized), Capitalized Case (First Letter Of Every Word), Alternating Case (aLtErNaTiNg), and Inverse Case (flips the existing case of each letter). Each format is applied instantly as you click.
Does the text converter have a character limit?
There is no strict character limit. The tool runs entirely in your browser and can handle long blocks of text without sending data to a server. For very large inputs (hundreds of thousands of characters), performance depends on your device's available memory, but typical documents and articles process instantly.
Does the text converter work with all languages?
Yes. The converter handles Unicode text and works correctly with accented characters (é, ü, ñ, etc.), as well as languages that use diacritics. However, case conversion for non-Latin scripts (such as Arabic, Chinese, or Japanese) is not applicable since those writing systems do not have uppercase and lowercase distinctions.
What does the text counter display?
Below the text area, the tool shows real-time counts for characters (total, including spaces), words, sentences, and lines. These counters update as you type or paste text, making the tool useful for writing tasks that have specific length requirements.
What is the difference between Title Case and Capitalized Case?
Title Case follows standard editorial rules and does not capitalize minor words such as 'a', 'an', 'the', 'and', 'but', 'or', 'in', 'on', 'at', etc. (unless they are the first word). Capitalized Case capitalizes the first letter of every single word without exception. Use Title Case for article headings and book titles; use Capitalized Case when you need every word capitalized regardless of grammar rules.