Text Tools · Case Converter

Text Case Converter - Free & No Account Required

Instantly convert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, and URL-friendly slugs - all inside your browser. Nothing is uploaded.

Instant 100% Private In Your Browser No Sign-Up
Local session
Choose a transformation

Your original text is preserved.

Converted Result

Characters Words Sentences Paragraphs Reading

Everything is processed locally in your browser and never uploaded.

Case Spectrum

One phrase. Eight formats.

See how “build better text tools” transforms across every case style.

UPPERCASEBUILD BETTER TEXT TOOLS
lowercasebuild better text tools
Title CaseBuild Better Text Tools
Sentence caseBuild better text tools
camelCasebuildBetterTextTools
PascalCaseBuildBetterTextTools
snake_casebuild_better_text_tools
slugifybuild-better-text-tools
Case Explorer

Tap a case to learn it

A quick, visual explanation of each formatting style and where it's used.

Real Workflows

The right case for every job

Writing my amazing article Title Case My Amazing Article
Developer user profile name camelCase userProfileName
Python / Data Customer Account ID snake_case customer_account_id
URL / SEO Best Online Text Tools slugify best-online-text-tools
In 4 Steps

Convert text in seconds

01

hello world

Paste

Type or paste your original text.

02

Aa → aA → a_a

Choose

Pick one of the eight case styles.

03

helloWorld

Convert

The result appears instantly with live counts.

04

copy(result)

Copy

Copy the output or reuse it as input.

Local Processing

Your text stays in your browser.

Every conversion runs locally with JavaScript. Your text is read, transformed, and displayed right here - it does not need to be uploaded to a server.

  • No upload required for conversion
  • No account and no sign-up
  • Instant, on-device output
your browser
TXTYour Text
JSConversion
AaConverted Output
No upload required
Knowledge Hub

A quick guide to text case

Text case conversion changes capitalization and separators while keeping the underlying words - helping your text fit prose, code, data, and URLs.

UPPERCASE

EXAMPLE TEXT

All capital letters - used for short emphasis, labels, and acronyms.

lowercase

example text

All small letters - useful for normalizing inconsistent text and tags.

Title Case

The Art of Clear Writing

Important words capitalized - the standard for headings and titles.

Sentence case

Better text starts here

Only the first word capitalized - natural for prose and UI copy.

camelCase

userProfileName

No spaces, first word lowercase - for JS variables and functions.

PascalCase

UserProfileCard

Every word capitalized - for classes, types, and components.

snake_case

customer_account_id

Underscore-joined lowercase - for Python, SQL, and config keys.

slug / kebab

best-text-tools

Hyphen-separated lowercase - clean, readable, SEO-friendly URLs.

Quick Reference

Which case should you use?

Source phrase: my example text

UPPERCASEMY EXAMPLE TEXTEmphasis & labels
lowercasemy example textNormalized text
Title CaseMy Example TextTitles & headings
Sentence caseMy example textSentences & UI labels
camelCasemyExampleTextJavaScript variables
PascalCaseMyExampleTextClasses & components
snake_casemy_example_textPython & databases
slugmy-example-textURLs
Answers

Frequently asked questions

Aa

More tools. Less busywork.

Fast, private, browser-based utilities for writing, code, and everyday work.

Explore All Tools