THE RIGHT CASE. THE SAME WORDS.
Uppercase to Lowercase Converter
Convert English letters A–Z to lowercase. Other characters stay unchanged.
Names and abbreviations become lowercase too.
Review changes
Convert your text to see what changed.
Copy your result before leaving. This tool does not save your text.
Links and code are treated as plain text: their English letters will change too. Check them before using the result.
Convert text to lowercase
Paste
One line or a whole list. Your spacing, empty lines, and original order stay intact.
Convert
Turn English capitals into lowercase. No rewriting and no changes to punctuation.
Copy
Check the result, make any final edits, and copy clean text. Nothing extra comes along.
What changes—and what stays the same
English letters A–Z
HELLO WORLD becomes hello world. Names change too: iPhone and USA becomes iphone and usa.
Spaces, punctuation, and line breaks
These remain unchanged after standardizing line endings. Up to 20,000 Unicode code points and 100 lines per conversion.
Non-English characters
This is an English-letter converter, not a language-aware converter. For example, ÉCOLE becomes École: the accented character stays unchanged.
Examples
HELLO WORLD → hello world
iPhone and USA → iphone and usa
Tabs, blank lines and surrounding spaces are preserved:
API V2! HELLO
becomes
api v2! hello
Frequently asked questions
Does it translate text?
No. Only letter casing changes. Words are not added, removed, or translated.
Is my text uploaded?
No. Conversion runs in your browser, without a text-processing API. Loading the site still requests its static files.
Can I convert multiple lines?
Yes: up to 100 lines and 20,000 Unicode code points. A trailing line break counts as an empty line. We never silently trim your text to fit.
Are brand names preserved?
No. This tool turns all English capitals into lowercase, including names and abbreviations.
Can I paste URLs or code?
Yes, as plain text. English letters in addresses and code become lowercase too. Check the result: changing letter case can make an address or code invalid.