Convert letter case in a single click
Whether you accidentally typed a paragraph with Caps Lock turned on, copied ALL-CAPS headings from a PDF, or need consistent capitalization for blog titles and spreadsheets, this tool fixes your text instantly. Paste your text, click any format button to preview the change, and copy the result.
Guide to every capitalization style
• UPPER CASE: Converts every letter to capitals (HELLO WORLD). Useful for acronyms, warning labels, short headers and emphasis.
• lower case: Converts every letter to small letters (hello world). Popular for minimalist social bios, URLs, tags and cleaning up shouting text.
• Title Case: Capitalizes the first letter of every word (Hello World) while keeping contractions like "don't" intact. Ideal for article headlines, YouTube video titles, email subjects and product names.
• Sentence case: Capitalizes only the first letter of each sentence after a period, question mark or exclamation point. Best for normal paragraphs, descriptions and essays.
• aLtErNaTiNg cAsE: Switches between lowercase and uppercase on every character for playful memes and chat messages.
Formatting preserved, 100% browser-based
Changing case only modifies letter capitalization—your original line breaks, paragraph spacing, numbers and punctuation stay untouched. All processing happens locally in your browser.
Frequently Asked Questions
What is the difference between Title Case and Sentence case?
Title Case capitalizes the first letter of every word ('How To Write Better Headlines'), whereas Sentence case only capitalizes the first word of each sentence ('How to write better headlines.').
Does Title Case break words with apostrophes like don't or it's?
No. Our Title Case converter only capitalizes letters that follow whitespace, so contractions like "don't" become "Don't" instead of "Don'T".
Does it keep my line breaks and paragraphs?
Yes. Spaces, tabs, punctuation and line breaks remain exactly as you pasted them.
Is my text uploaded to any server?
No. Everything is converted directly inside your browser.