Case Converter: Transform Text Between Cases Instantly
You've written an entire paragraph in caps lock by accident. Or you need to convert a list of names to title case for a spreadsheet. Or you're formatting headings for a blog post and need consistent capitalization. These are everyday tasks that a case converter solves instantly.
The Case Converter on Fontlix offers 12 different case transformations — from the basics to creative styles you might not have thought of.
Available Case Conversions
UPPERCASE
Converts all letters to capitals. Common uses include headings, acronyms, emphasis in casual writing, and reformatting data. Example: "hello world" becomes "HELLO WORLD."
lowercase
Converts all letters to small letters. Useful for normalizing data, fixing accidental caps lock, and creating a casual or minimalist tone. Example: "HELLO WORLD" becomes "hello world."
Title Case
Capitalizes the first letter of each word. Standard for headlines, titles, and names. Example: "the quick brown fox" becomes "The Quick Brown Fox."
Sentence case
Capitalizes only the first letter of each sentence. Converts ALL CAPS text back to normal readable text. Example: "HELLO WORLD. HOW ARE YOU." becomes "Hello world. How are you."
aLtErNaTiNg CaSe
Alternates between lower and uppercase letters. Commonly used for the "mocking SpongeBob" meme and sarcastic text. A fun, informal style for social media.
iNVERSE cASE
Swaps the case of every letter — uppercase becomes lowercase and vice versa. Useful as a creative effect or for quickly fixing text that was typed with caps lock on.
When to Use Each Case
Headlines and titles: Title Case is the standard for English-language headlines. AP Style and Chicago Style have slightly different rules about which small words to capitalize, but a title case converter handles the basics.
Email subjects: Sentence case is generally recommended for email subject lines. It feels natural and conversational. Title case works for formal or marketing emails.
Data cleaning: When importing data from different sources, inconsistent capitalization is common. Convert everything to a uniform case before processing.
Programming: Variable naming conventions differ by language — camelCase for JavaScript, snake_case for Python, PascalCase for C# classes. While this tool focuses on natural language, the principles of consistent casing apply everywhere.
Social media: Lowercase text creates a casual, approachable vibe popular on platforms like Tumblr and Twitter. ALL CAPS conveys shouting or extreme emphasis. Alternating case is meme culture shorthand for sarcasm.
Combining with Other Tools
The case converter works seamlessly with other Fontlix tools. Convert your text to the right case first, then apply a fancy font style with the Fancy Text Generator. Check your text length with the Word Counter before posting. Or convert to bold with the Bold Text Generator for extra emphasis.
Pro tip: When writing for the web, use sentence case for body text and title case for headings. This is the most readable combination and follows standard editorial guidelines.
Convert Your Text
Fix your capitalization in seconds with the Case Converter — 12 case styles, free, instant, no character limits.