Case Conversion
8 toolsChange the capitalization of text: uppercase, lowercase, title case, sentence case, and more.
All 8 toolsAlways freeNo account, no signup, no credit cardRuns in your browser
Professional Case Converter & Text Transformer
A case converter changes the capitalization of text. Type or paste below, pick a case such as Title Case, Sentence case, or UPPERCASE, and copy the result. The conversion runs in your browser.
0 wordsNever uploaded
Case converters
Each case has its own page with examples, the rules it follows, and the same editor.
- Uppercase ConverterConvert all letters to uppercase
- Lowercase ConverterConvert all letters to lowercase
- Title Case ConverterCapitalize major words following AP style; short articles, conjunctions, and prepositions stay lowercase
- Sentence Case ConverterCapitalize only the first letter of each sentence
- Proper Case ConverterCapitalize the first letter of every word
- Capitalize First LetterCapitalize only the first letter of the text
- Small Caps ConverterConvert lowercase letters to small capitals
- Alternating Case ConverterAlternate between uppercase and lowercase letters
Transform Text Like a Pro
Professional text transformation tools designed for writers, journalists, and communication professionals. Choose your category to explore powerful formatting solutions.
Title Capitalization
4 toolsCapitalize titles and headlines by the rules of AP, Chicago, APA, or MLA style.
- AP Style Title Case Converter
- Chicago Style Title Case Converter
- MLA Style Title Case Converter
- APA Style Title Case Converter
Programming Case
6 toolsConvert text to the naming conventions programmers use for identifiers.
All 6 toolsText Cleanup
11 toolsRemove extra spaces, blank lines, duplicate lines, and punctuation, and fix quote marks.
All 11 toolsFormatting
11 toolsWrap, truncate, reverse, and indent text, or find and replace words in it.
All 11 toolsLists and Lines
13 toolsSort, number, bullet, join, and split lines, or add and remove text on every line.
All 13 toolsCounting and Analysis
13 toolsCount words and characters, estimate reading time, score readability, and extract data.
All 13 toolsPopular Tools
From all 7 categoriesAll tools, A to ZWhy Professionals Choose Case Changer Pro
Free text case and formatting tools for writers, editors, and communications teams
Instant Results
Transform large blocks of text in your browser without waiting on a server.
Major Style Guides
Choose AP, MLA, Chicago, or APA title case rules with a single click.
Processed in Your Browser
Text transformations run in your browser, and your text is not sent to our servers.
Case Changer Pro is written and maintained by Robert David Orr. About Case Changer Pro · The title case rules each style follows
Frequently Asked Questions
Everything you need to know about Case Changer Pro and text transformation
A case converter is a text transformation tool that changes the capitalization of your text. Case Changer Pro instantly converts text between uppercase, lowercase, title case, sentence case, and more. It works entirely in your browser, processing text in real-time without sending data to any server, ensuring complete privacy.
Case Changer Pro converts text to uppercase, lowercase, title case, sentence case, proper case, first-letter capitalization, small caps, and alternating case. For titles, it also has converters that follow AP, Chicago, APA, and MLA style.
Yes! Case Changer Pro is 100% free with no hidden costs, subscriptions, or trial periods. You get unlimited access to all 60+ text transformation tools without creating an account or providing payment information. We believe professional writing tools should be accessible to everyone.
Case Changer Pro supports major professional style guides including AP (Associated Press), MLA (Modern Language Association), Chicago Manual of Style, and APA (American Psychological Association). Our title case converter follows each style guide's specific capitalization rules, ensuring your headlines, titles, and citations are properly formatted.
Your privacy is our top priority. All text processing happens entirely in your browser using client-side JavaScript. Your text never leaves your device, is never sent to our servers, and is never stored or logged. The site uses Google Analytics, which sets cookies, to count page visits; it never receives the text you enter.
Absolutely! Case Changer Pro is fully responsive and works perfectly on all devices including smartphones, tablets, laptops, and desktops. The interface adapts to your screen size, ensuring all features are accessible whether you're formatting text on your phone during your commute or at your desk on a desktop computer.
Yes, up to 100,000 characters at a time. Convert longer documents in parts.
Case Changer Pro uses algorithms that follow documented style guide rules. Our title case converter handles articles, prepositions, conjunctions, and proper nouns according to AP, MLA, or Chicago style. For specialized terms or proper nouns, you can manually adjust any conversions.
Title case capitalizes the first letter of each major word (nouns, verbs, adjectives) and leaves minor words (articles, conjunctions, short prepositions) lowercase, perfect for headlines and titles. Sentence case capitalizes only the first word and proper nouns, just like regular sentences. Title case is used for headlines, while sentence case is used for body text and descriptions.
You have multiple options to save your converted text: copy it to your clipboard with one click, download it as a .txt file, or export it in various formats including Word-compatible documents. All downloads happen instantly, and you can rename files before saving. There's no limit on how many times you can export or download your text.
Still have questions?
We're here to help! Check out our detailed documentation or get in touch.