inyourbrowser.com

Text to lower case Converter

Convert any text to all lowercase in one click. Useful for normalising data, slugs, and user input. Runs locally in your browser.

Input
Output

CONVERT TO

Currently converting to lower case.

Runs entirely in your browser

How it works

The tool tokenises your input by splitting on spaces, underscores, hyphens, and camelCase boundaries, then rebuilds the words in the target case format. Everything runs in JavaScript inside your browser tab.

Processing runs in your browser

All conversion happens using the browser's built-in JavaScript engine. Our servers are not involved at any point.

Related operations

For swapping substrings across pasted text, try find and replace. To alphabetise or dedupe lines after converting, use sort lines. For checking length after a case change, see the word counter.

Frequently asked questions

Does it affect numbers and symbols?
Only letters are lowercased. Numbers, punctuation, and spaces are untouched.
Is my text private?
Yes. Everything runs in your browser tab. Our servers are not involved at any point.
Why normalise text to lowercase?
Lowercasing is useful when comparing strings for equality, generating URL slugs, or storing usernames consistently. It removes case differences that would otherwise be treated as distinct values.
Does it handle accented and non-English letters?
Yes. JavaScript's toLowerCase() correctly lowercases accented Latin letters as well as Greek, Cyrillic, and other scripts with defined case rules.

Related tools

Word counter
Count words, characters, sentences, and paragraphs. All processing runs in your browser.
Text diff
Inline or side-by-side comparison. Handles plain text and structured diffs.
Slug generator
Convert any text into a URL-safe slug. Handles diacritics, special characters, and custom separators.
Sort lines
Sort lines alphabetically, by length, or shuffle randomly. Remove duplicates and empty lines in one click.