Case Converter - Convert Text to Any Case Free
Free case converter tool transforms text between UPPERCASE, lowercase, Title Case, camelCase, PascalCase, snake_case, kebab-case instantly. Perfect for programming, writing, and social media. Copy & paste results with one click.
0 characters • 0 words
0 characters • 0 words
Choose Conversion Type
Using the Case Converter
Quick Start
- 1Paste your text in the input box (or upload a file if you have a lot)
- 2Pick the case style you need from the buttons below
- 3Your converted text appears instantly in the output box
- 4Copy the result or save it as a file for later use
Best Practices
- •JavaScript code: camelCase works best for variable names
- •Python code: snake_case follows PEP 8 style guidelines
- •CSS classes: kebab-case is the web standard
- •Article headlines: Title Case looks more professional
- •Large files: Upload .txt files instead of copy-pasting
Examples
Programming Cases
Writing Cases
Programming Projects
Different languages have different naming conventions. Converting between styles helps you follow each language's best practices and maintain clean, readable code.
- • JavaScript variables: camelCase
- • Python functions: snake_case
- • CSS properties: kebab-case
- • C# classes: PascalCase
Content Writing
Proper capitalization makes your writing look polished and professional. Different contexts call for different styles - headlines need impact, body text needs readability.
- • Article headlines: Title Case
- • Body paragraphs: Sentence case
- • Important notices: UPPERCASE
- • Section headings: Capitalize Words
Social Media Posts
Case styles can completely change how your post feels. All caps grabs attention but can feel aggressive, while alternating case adds playfulness. Choose based on your message tone.
- • Important announcements: UPPERCASE
- • Relaxed conversations: lowercase
- • Playful content: AlTeRnAtInG
- • Ironic comments: iNVERSE cASE
Frequently Asked Questions
Title Case vs Capitalize Words - what's different?
Title Case follows English grammar rules - it skips small words like "and," "the," "of" unless they start the title. Capitalize Words just makes every single word start with a capital letter, no exceptions.
camelCase or PascalCase - which should I pick?
camelCase starts lowercase and works great for variables and function names (like "getUserData"). PascalCase starts uppercase and fits better for class names and types (like "UserAccount"). It's mostly about following conventions.
What about numbers and special characters?
Numbers stay exactly the same in all conversions. Most special characters do too, except when converting to programming formats like snake_case or kebab-case - those might remove or replace some symbols to create valid variable names.
Can I upload really large files?
Since everything happens in your browser, it depends on your device's memory. Files up to a few megabytes usually work great, but huge files might make things sluggish. Try breaking them into smaller chunks if needed.
Why use snake_case in Python but camelCase in JavaScript?
It's about following each language's community standards. Python's PEP 8 style guide recommends snake_case for better readability - underscores make long names easier to scan. JavaScript traditionally uses camelCase, inherited from Java. Following conventions helps other developers read your code more easily.
Does case converter work with non-English text?
Yes! The converter works with any Unicode text including accented characters (café → CAFÉ), Cyrillic (привет → ПРИВЕТ), Greek, and most other writing systems. However, programming cases (camelCase, snake_case) are designed for English-style identifiers without spaces.
Is my text stored anywhere when I use this tool?
No! All text conversion happens entirely in your browser using JavaScript. Your text never leaves your computer - we don't send it to any server, don't store it, and don't track what you convert. You can even use the tool offline after the page loads.
What's the difference between kebab-case and snake_case?
kebab-case uses hyphens (my-variable-name) while snake_case uses underscores (my_variable_name). kebab-case is standard for CSS class names and URLs because hyphens are valid in HTML/CSS but not in most programming languages. snake_case works great in code since underscores are allowed in variable names.
When to Use Each Case Type
Programming Conventions
camelCase
JavaScript, Java, TypeScript variables and functions. The first word starts lowercase, then every word after is capitalized: getUserName(), totalAmount.
PascalCase
Class names, React components, C# methods. Every word starts with a capital letter: UserAccount, HomePage. Signals that something is a constructor or component.
snake_case
Python, Ruby, PHP variables and functions. All lowercase with underscores between words: user_name, get_total_price(). Follows PEP 8 style guidelines for better readability.
kebab-case
CSS class names, HTML IDs, URLs. Lowercase with hyphens: nav-menu, user-profile-page. Standard for web development because hyphens work in HTML/CSS but not in variable names. Our URL encoder tool helps with URL formatting.
Writing & Content
UPPERCASE
Emphasis, warnings, important notices, acronyms. Use sparingly in body text - ALL CAPS can feel like shouting. Great for short headers, alert messages, or when you need maximum attention.
Title Case
Article headlines, book titles, section headers. Follows grammar rules - capitalizes important words while keeping articles and prepositions lowercase (unless they start the title). Makes content look polished and professional.
Sentence case
Normal writing, paragraphs, descriptions. Only the first word of each sentence is capitalized. Most readable for body text because it's what readers expect. Use for longer content blocks.
lowercase
Casual social media posts, poetry, artistic effect. Creates informal, friendly tone. Some brands use all lowercase for aesthetic (like "apple" or "adidas"). Can feel relaxed or modern depending on context.
AlTeRnAtInG cAsE
Sarcasm, mockery, playful tone on social media. Creates comedic effect by mimicking childish writing. Use carefully - it's hard to read and can come across as rude if misunderstood. Popular in memes.
Related Text Tools
Enhance your text formatting and analysis with these complementary tools:
Character Counter
Count characters, words, and sentences in your converted text for social media limits.
Word Sorter
Alphabetically sort words or lines after case conversion for organized lists.
Duplicate Remover
Clean up text by removing duplicate lines or words from your converted content.
URL Encoder
Encode URLs and text for web use, perfect for kebab-case URLs and links.
Text Statistics
Analyze converted text with readability scores, keyword density, and linguistic metrics.
All Text Tools
Explore 33+ free tools for text processing, formatting, and transformation.