Uppercase to Lowercase Converter

Accidentally left Caps Lock on? Paste your text and switch it to lowercase — or UPPERCASE, sentence case, Capitalize Each Word and alternating case — in one click.

How to convert uppercase to lowercase

Select lowercase above (it is the default), then paste the text you want to fix. Every letter is converted to its lowercase form instantly while spaces, numbers and punctuation are left untouched. Click Copy result to grab the cleaned-up text. To go the other way, pick UPPERCASE.

The six case styles explained

ModeWhat it doesExample
lowercaseEvery letter lowercasedhello world
UPPERCASEEvery letter capitalizedHELLO WORLD
Sentence caseFirst letter of each sentence capitalizedHello world. Nice day.
Capitalize Each WordFirst letter of every word capitalizedHello World
aLtErNaTiNgLetters alternate lower/upperhElLo wOrLd
iNVERSESwaps the case of every letterhELLO WORLD

Why convert case online?

Copy-pasting from PDFs, spreadsheets or all-caps marketing copy often leaves text in the wrong case. Retyping is slow and word-processor case commands are buried in menus. A dedicated online converter is faster, keeps your formatting, and — because everything runs in your browser — never sends your text anywhere. It is handy for cleaning headlines, normalizing data, fixing CAPS-LOCK accidents and creating playful alternating-case captions for social media.

FAQ

Does converting to lowercase remove formatting?
No. Only letter case changes. Line breaks, spacing, numbers and symbols are preserved exactly.
What is the difference between sentence case and capitalize each word?
Sentence case capitalizes only the first letter of each sentence; capitalize-each-word capitalizes the first letter of every word.
Is there a length limit?
No practical limit — the converter handles large blocks of text instantly because it runs locally.

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