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Case converter

Fix text typed with Caps Lock on, give titles proper capitals, and clean up spaces, blank lines and repeated lines in one place.

100% free · no sign-upYour files never leave your device

How to change text case in 3 steps

  1. 1

    Type or paste your text in the box, or open a .txt file.

  2. 2

    Press the change you want: a case style, or a clean-up option such as removing double spaces or blank lines.

  3. 3

    Copy the result or download it as a .txt file.

Your files never leave your device

This tool runs entirely inside your browser. The file is never uploaded to any server: it is read, processed and downloaded on your own device. When you close or reload the page, it is gone from memory.

Six ways to change capitals

UPPERCASE turns every letter into a capital, for headings, signs, labels or forms that ask for block letters. lowercase does the opposite, which is the quick fix for a paragraph someone typed with Caps Lock on. Title Case capitalizes the first letter of each word, for headings, book and song titles, lists of names and product names. Sentence case leaves a capital only at the start of each sentence, the normal way to write running text.

There are also two playful options: aLtErNaTiNg case, which switches between small and capital letters, and inverse, which swaps the case of every letter. The second one is also practical: it undoes text typed with Caps Lock on by accident, where the capitals and small letters came out backwards.

In Title Case, short words such as “a”, “an”, “the”, “and”, “or”, “of”, “in”, “on”, “at”, “to” and “for” stay in lowercase unless they open the text, as most English style guides do. If your style guide treats a particular word differently, adjust it by hand afterwards.

Clean up messy text

Text copied from a PDF, a web page, an email or a spreadsheet often arrives with junk: double spaces between words, empty lines everywhere, lines that repeat, or a line break in the middle of every sentence. The clean-up buttons fix each of those problems: remove double spaces, trim spaces at the start and end of each line, remove empty lines, remove duplicate lines, and join everything into one paragraph.

Joining into one paragraph is especially useful with text copied from a PDF, which comes out cut at the end of every printed line. One click turns it back into continuous text you can paste into a document or a form. If a change wasn't what you wanted, the Undo button takes the text back one step.

Sort lines from A to Z

The sort option puts the lines of the text in alphabetical order. Combined with removing duplicate lines, it turns a messy list into a clean one: email addresses collected from several places, a guest list, product names, keywords, or student names to paste into a spreadsheet. Each line is treated as one item.

You can apply several changes in a row. For example, paste a list, convert it to lowercase, remove duplicates and then sort it.

What you write is not sent

All the changes happen in your browser. Your text is not sent to a server and is not saved, so you can safely work with customer lists, internal notes or drafts. It is free, with no account and no limits, on a phone or a computer.

When the text is ready, copy it with one click or download it as a .txt file. To check its length, use “Word counter”; to turn it into a PDF, use “TXT to PDF”.

Frequently asked questions

How do I fix text typed with Caps Lock on?

Use lowercase or sentence case. If the capitals and small letters are reversed, use inverse.

Does Title Case skip short words like “of” and “the”?

Yes. Short words such as “of”, “the”, “and” or “to” stay lowercase, except at the start. Change any word by hand if your style guide differs.

Does it work with accented letters?

Yes. Letters such as é, ñ or ç are converted to capitals and small letters correctly.

How do I remove line breaks from text copied from a PDF?

Paste the text and press “Join into one paragraph”. The broken lines are joined into continuous text.

Can I sort a list and remove duplicates?

Yes. Use “remove duplicate lines” and then “sort A to Z”. Each line is treated as one item.

Can I download the result?

Yes. Copy it or download it as a .txt file.

Is my text sent anywhere?

No. Everything happens in your browser. Nothing is sent or saved.

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