TextLimits — Words, Characters & Limits

✓ Free  ·  No login  ·  Private  ·  Instant

Free Case Converter Tool

This free case converter lets you paste any text and instantly change it to UPPERCASE, lowercase, Title Case, Sentence case, snake_case, camelCase and more — entirely in your browser.

Case options

Paste text, then click a conversion button above

Your text stays in your browser

Private

How to convert text case

1

Paste your text

Type or paste any text into the editor above. You can also click the Paste button to pull directly from your clipboard.

2

Click a mode

Choose from UPPERCASE, lowercase, Title Case, Sentence case, snake_case, camelCase and more. The text updates instantly in place.

3

Copy the result

Edit the converted text if needed, then click Copy or use the floating copy button on desktop to grab the result.

Case conversion modes explained

Common formats for writing and editing.

UPPERCASE

PROJECT STATUS UPDATE

Converts every letter to its capital form. Useful for acronyms, headings, labels, or emphasis where all-caps formatting is required.

lowercase

winter offer confirmed

Converts every letter to its lowercase form. A quick fix for pasted text in ALL CAPS, or to reset text before applying another conversion.

Title Case

A Practical Guide to Text Limits

Capitalises the first letter of each word, keeping short connecting words (a, an, the, and, or, of, in, on, at, by, for) lowercase in the middle of a title.

Sentence case

This is easier to read.

Capitalises only the first letter of the whole text and the first letter after each sentence-ending mark. Ideal for body text and most everyday writing.

Capitalize Words

Client Meeting Notes

Capitalises the first letter of every single word with no exceptions. Useful for names, column headings, tags, labels, and menu items.

Swap Case

pROJECT sTATUS uPDATE

Flips each letter: uppercase becomes lowercase and lowercase becomes uppercase. Spaces and punctuation are left unchanged.

Developer and fun formats

Code-friendly naming conventions and one fun mode.

snake_case

client_meeting_notes

Lowercases everything and replaces spaces and separators with underscores. Common in Python, SQL and file names.

kebab-case

client-meeting-notes

Lowercases everything and replaces spaces and separators with hyphens. Standard for URLs, CSS class names and CLI flags.

camelCase

clientMeetingNotes

Removes spaces and capitalises each word after the first. The standard naming style for JavaScript variables and functions.

Random Case

ThIs TeXt LoOkS A BiT WiLd

Randomly uppercases and lowercases each letter. Spaces and punctuation stay untouched. A fun mode for mocking text or social posts.

Why use a browser-based case converter?

Completely private

Your text is processed entirely in your browser and is never sent to our servers. Paste confidential copy, contract text or client work without any risk of it being stored or read.

No sign-up, no install

Open the page and start converting immediately. There is no account to create, no extension to install, and no app to download — just paste and click.

Instant and live

Conversions apply the moment you click. The character and word count updates live as you type, so you can see the full picture of your text as you edit.

Works on any device

The case converter runs in any modern browser on desktop, tablet or mobile. No special software is needed — if it has a browser, it works.

Case Converter FAQ

What is a case converter?
A case converter is a tool that changes the capitalisation of text — for example, turning "project status update" into "PROJECT STATUS UPDATE" or "Project Status Update". This free case converter runs entirely in your browser, so your text is never sent anywhere.
What is the difference between Title Case and Capitalize Words?
Title Case keeps short connecting words like "and", "of" or "the" lowercase when they appear in the middle of a title. Capitalize Words capitalises the first letter of every word without exception — useful for names, labels or headings where you want every word capped.
What is sentence case?
Sentence case capitalises only the first letter of the text and the first letter after each sentence-ending mark (period, exclamation mark or question mark), then lowercases everything else. It is the standard capitalisation style for body text and most prose.
What are snake_case, kebab-case and camelCase used for?
These are naming formats commonly used in programming and web development. snake_case uses underscores to separate words and is popular in Python and database column names. kebab-case uses hyphens and is common in URLs and CSS class names. camelCase joins words together with each new word capitalised and is standard in JavaScript variables and function names.
Does this case converter save my text?
No. All conversion happens locally in your browser. Your text is never sent to a server, stored in a database, or saved anywhere — not even in localStorage. When you close or refresh the tab, the text is gone.
Why might Title Case give different results than another tool?
Title Case rules are not exactly the same everywhere. Some tools capitalize small words like "and", "of" or "the", while others keep them lowercase in the middle of a title. TextLimits uses a simple, practical version that works well for most headings and titles.

Related tools

Word counter Character counter Text cleaner All tools