Uppercase to Lowercase Converter
Need to fix a block of text stuck in ALL CAPS — or convert lowercase to uppercase for emphasis? This case changer converts in any direction: upper → lower, lower → upper, and swap case.
Uppercase to lowercase
Converts ALL CAPS text into normal lowercase — the quick fix for pasted headings, shouty messages, and legacy documents.
Lowercase to uppercase
Turns normal text into ALL CAPS for titles, warnings, and emphasis where the style calls for it.
Swap case
Flips the case of every letter — useful for fixing text typed with caps lock stuck on.
Frequently asked questions
What does "swap case" do?
It inverts every character’s case: A becomes a, b becomes B. It is the classic fix for caps-lock accidents.
Does it handle numbers and punctuation?
Yes — numbers and punctuation pass through unchanged; only letters are converted.
Is the converter free?
Yes — free, unlimited, and runs entirely in your browser with no uploads.
Free · No sign-up · Works in your browser