Paste your text and switch between uppercase, lowercase, title case and sentence case in one click.
How to use the Case Converter
- Paste or type your text into the box.
- Click the case you need — UPPERCASE, lowercase, Title Case or Sentence case.
- The text box updates instantly; copy it out whenever you are ready.
When each case is the right case
UPPERCASE is for emphasis, acronyms and warning labels — not full paragraphs, which read as shouting.
lowercase suits casual prose and code.
Title Case capitalises the main words — right for headlines, book titles and YouTube video titles.
Sentence case capitalises only the first word — modern style guides (Google, Apple, Microsoft) recommend it for UI text, emails and blogs because it is calmer and easier to scan.
What this tool fixes fast
Text typed with Caps Lock accidentally on — one click instead of retyping.
Inherited documents with SCREAMING HEADLINES from the 1990s.
Spreadsheet or list entries with inconsistent capitalisation before import.
YouTube titles, blog headlines and email subject lines that need consistent Title Case.
Frequently asked questions
What is the difference between Title Case and Sentence case?
Title Case capitalises the principal words of every word (“The Quick Brown Fox”); sentence case capitalises only the first word (“The quick brown fox”).
Can I convert a whole document at once?
Yes — paste the entire text, convert, then copy it back. Very large texts are handled instantly because everything runs locally.
Does it keep my formatting like bold and italics?
This converter works on plain text. Bold and italics are formatting, not case — paste plain text and reapply formatting after converting.
Why is sentence case recommended for headlines?
Studies and major style guides find it easier to read and less visually aggressive; it also avoids mistakes about which small words to capitalise in Title Case.
Is this case converter free?
Yes — free, unlimited, and your text never leaves your browser.