Case Converter

Select a case, type or paste your text — the result appears instantly on the right.

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UPPERCASE result

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Free online case converter — change text case instantly

Our case converter lets you switch between six text cases in one click. Whether you need ALL CAPS for a headline, lowercase for code, Title Case for a book title, or Sentence case for a paragraph — just paste your text and the result is ready instantly.

Useful for writers, developers, students, social media managers and anyone who needs to reformat text quickly without retyping it. Works on any device, no account needed.

Your text is processed entirely in your browser — nothing is sent to any server.

Free Online Case Converter

TXTomatic's Case Converter lets you instantly change the capitalisation of any text. Convert to UPPERCASE, lowercase, Title Case, Sentence case, or alternating case with a single click. No software to install — works entirely in your browser.

How to use the Case Converter

Type or paste your text into the editor above.
Click the conversion button that matches the format you need.
Copy or download the converted text instantly.

Available conversion types

UPPERCASE — converts all letters to capitals. Example: HELLO WORLD.
lowercase — converts all letters to small. Example: hello world.
Title Case — capitalises the first letter of each word. Example: Hello World.
Sentence case — capitalises only the first letter of each sentence. Example: Hello world.
aLtErNaTiNg CaSe — alternates between upper and lower case letters.
Inverse Case — swaps the case of every letter.

Who uses a Case Converter?

Writers and editors fixing capitalisation errors, developers formatting strings, students correcting essays typed in caps lock, social media managers formatting headlines, and designers preparing text for layouts.

Frequently Asked Questions

Does it work with accented characters?
Yes. The converter handles accented and special characters found in European languages such as é, ü, ñ, and ç.

Will it change numbers or punctuation?
No. Only alphabetic letters are affected. Numbers, punctuation, and symbols remain unchanged.

Is my text stored anywhere?
No. All conversion happens locally in your browser. Your text is never sent to our servers.