Lowercase Text Converter

Convert ALL CAPS or mixed text to clean lowercase in one click. Useful for normalizing data, emails and URLs.

Convert any text to lowercase instantly. Free, private lowercase tool that runs locally in your browser. Every letter is lowercased with Unicode mapping.

Lowercase Text Converter examples

InputOutput
SHOUTING HEADLINEshouting headline
CAFÉ MÜNSTERcafé münster

How the lowercase text converter works

  1. Paste text in any mix of cases.
  2. Each character is lowercased using Unicode case mapping, so É becomes é.
  3. Copy the normalised lowercase text.

Rules and edge cases

  • Every letter is lowercased with Unicode mapping: CAFÉ becomes café and STRASSE stays strasse (lowercasing never contracts SS back to ß).
  • Turkish dotted and dotless I are lowercased using the default Unicode rule, not the Turkish locale rule.
  • Numbers, symbols, URLs and code snippets keep their characters; only letters change.
  • For text that should read as prose again after being shouted, sentence case is usually a better fit than plain lowercase.

Frequently asked questions

Can I get my original capitalisation back?

No — lowercasing is lossy. Keep a copy of the original if you might need the capitals, or run the result through Title Case or Sentence case to rebuild a readable form.

Is lowercase text useful for data cleaning?

Yes. Lowercasing before comparing or de-duplicating values makes matches case-insensitive, which is why it is a standard first step for emails, tags and slugs.