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Lowercase Converter

Convert text to lowercase, including accented and non-Latin letters.

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Quick Tool Overview

The Lowercase Converter drops every letter in your text to lowercase, which is both the fastest fix for a caps lock accident and the standard way to normalise emails, tags and usernames so that values which should match actually do. An optional pass puts sentence capitals back afterwards.

What it does
Converts every letter to lowercase
You give it
Text, data values or a caps-locked paragraph
You get back
The lowercase version, optionally re-capitalised by sentence
Best for
Normalising data and fixing caps lock mistakes
Text Tools Free, unlimited use No sign-up Runs in your browser

About the Lowercase Converter

The most common reason to reach for this tool is a paragraph typed with caps lock on. The second most common is normalising data — email addresses, tags, usernames and URLs are all conventionally lowercase, and a single stray capital is enough to make two records that should match fail to.

Conversion uses proper Unicode case mapping, so accented Latin letters, Greek and Cyrillic all lowercase correctly rather than being left untouched. An optional pass restores sentence capitalisation afterwards, which turns a shouted paragraph back into ordinary readable prose in one step instead of two.

Key features of the Lowercase Converter

Sentence capitals restored on demand

One switch puts a capital back at the start of each sentence and on the pronoun "I", turning shouted text into readable prose.

Unicode-correct

Accented Latin, Greek and Cyrillic all lowercase properly instead of being skipped by an ASCII-only conversion.

Caseless scripts untouched

Arabic, Hebrew and CJK have no case and pass through exactly as they arrived.

Layout preserved

Line breaks and spacing survive, so a lowercased list is still a list.

Built for data cleaning

Paste a whole column of email addresses or tags and normalise the lot in one action.

How to use the Lowercase Converter

  1. 1

    Paste the text

    Anything from a single word to a whole document, including text typed with caps lock on.

  2. 2

    Get the lowercase version

    Every letter is lowered as you type, with punctuation and layout untouched.

  3. 3

    Restore sentences if you want

    Switch on sentence capitalisation to put a capital back at the start of each sentence and on the word "I".

  4. 4

    Copy the result

    One click puts the converted text on your clipboard.

Frequently asked questions

Because comparisons are usually case-sensitive. Email addresses, tags, slugs and usernames are conventionally stored lowercase so that "Alex@example.com" and "alex@example.com" are recognised as the same value.

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