UD5 Toolkit
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Text Case Converter - Online Uppercase Lowercase Title Tool
Text Case Converter
Instantly convert your text to Uppercase, Lowercase, Title Case, Sentence case, and more — right in your browser.
Input
Characters: 0 | Words: 0
Output
Characters: 0 | Words: 0
Frequently Asked Questions
A text case converter is an online tool that changes the capitalization of your text. You can switch between uppercase, lowercase, title case, sentence case, and even playful styles like alternating or inverse case — all without typing anything manually.
Simply paste or type your text in the left box, select the UPPERCASE or lowercase option, and the converted result appears instantly in the right box. No extra clicks needed.
Title case capitalizes the first letter of every word. It’s commonly used for headlines, book titles, article headings, and social media posts where you want each word to stand out.
Sentence case capitalizes only the first letter of each sentence. It's the standard format for body paragraphs in articles, emails, and formal documents. Our tool identifies sentence breaks after periods, exclamation marks, and question marks.
Yes! The aLtErNaTiNg option toggles each character between lower and upper case (e.g., “hello” → “HeLlO”). The InVeRsE option flips the case of each letter, turning “Hello” into “hELLO”. Both are perfect for fun social media captions.
Absolutely. All conversion happens locally in your browser — no text is ever sent to a server or stored anywhere. Your data stays completely private.
Click the Copy button above the output box, and the converted text will be saved to your clipboard instantly. A confirmation message will appear briefly to let you know it worked.
Yes, numbers and special characters remain unchanged. Only alphabetic letters are affected by the case conversion, so your formatting stays intact.