Convert text to any case format instantly — UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, and more. Perfect for developers, writers, and content creators. Free, fast, no sign-up needed.
UPPER, lower, Title, Sentence, camelCase, PascalCase, snake_case, kebab-case
Text converts instantly as you click each case button
Copy converted text to clipboard with a single click
Keeps line breaks and structure while changing case
Works with any text length — short snippets or full articles
camelCase, PascalCase and snake_case for developers and coders
Type or paste the text you want to convert into the text area.
Click the case button you need: UPPER, Title, camelCase, etc.
Check the converted text in the output area.
Click Copy to copy the converted text to your clipboard.
A case converter is an online tool that transforms text from one capitalization format to another instantly. Whether you're a developer who needs camelCase for JavaScript variables, a content writer who needs Title Case for blog headings, or a marketer who needs ALL CAPS for emphasis, this tool handles all conversions simultaneously with a single paste.
Our Case Converter supports 12 different text case formats, making it the most comprehensive free case converter available online. Unlike basic tools that only offer UPPERCASE and lowercase, we cover every format used in writing, programming, URL structures, and database naming — all generated in parallel from a single input.
This tool is especially useful for developers switching between naming conventions, bloggers formatting titles correctly, and social media managers creating eye-catching posts. It works on any device, processes text instantly, and requires no sign-up or installation.
| Format | Example | Best Used For |
|---|---|---|
| UPPERCASE | HELLO WORLD | Acronyms, emphasis, constants, headings |
| lowercase | hello world | General text, email addresses, hashtags |
| Title Case | Hello World | Article titles, headings, proper nouns |
| Sentence case | Hello world | General writing, paragraphs, sentences |
| camelCase | helloWorld | JavaScript variables, JSON keys, APIs |
| PascalCase | HelloWorld | Class names, React components, C# types |
| snake_case | hello_world | Python variables, database columns, filenames |
| kebab-case | hello-world | CSS classes, URLs, HTML attributes, filenames |
| CONSTANT_CASE | HELLO_WORLD | Environment variables, constants, config keys |
| dot.case | hello.world | Configuration files, properties, package names |
| aLtErNaTiNg | hElLo WoRlD | Memes, social media humor, emphasis |
| Inverted case | hELLO wORLD | Creative styling, visual effects |
Title Case capitalizes the first letter of every major word (nouns, verbs, adjectives, adverbs) while leaving minor words (a, an, the, and, but, or) in lowercase — unless they start the title. Use it for blog post titles, article headings, book titles, and movie titles. Most major style guides including APA, MLA, and Chicago recommend Title Case for headings.
camelCase starts with a lowercase letter and capitalizes the first letter of each subsequent word (e.g., myVariableName). PascalCase capitalizes the first letter of every word including the first (e.g., MyVariableName). In JavaScript, camelCase is standard for variables and functions, while PascalCase is used for class names and React components.
snake_case uses only lowercase letters with words separated by underscores (e.g., my_variable_name). It's the standard in Python for variables and function names, and is also common in database column names, file names, and WordPress URL structures. Ruby also uses snake_case for method names.
Google officially recommends using hyphens (kebab-case) rather than underscores in URLs. Google treats hyphens as word separators, but underscores join words together — so "word-counter" is seen as two words while "word_counter" is seen as one. Use kebab-case for all URLs and slugs for best SEO results. Try our URL Slug Generator to automate this.
UPPERCASE and lowercase conversions work with standard Latin characters including accented letters (é, ü, ñ, etc.). For programming formats like camelCase, snake_case, and kebab-case, special characters and punctuation are treated as word boundaries and removed or replaced with the appropriate separator.
Type or paste your text into the input box. Choose from Title Case, UPPER CASE, lower case, Sentence case, CamelCase, snake_case, or kebab-case by clicking the corresponding button. The converted text appears instantly. Use the Copy button to copy the result to your clipboard.
Consistent text casing is critical for professional content, code consistency, and SEO. Blog titles should be in Title Case for readability. CSS class names conventionally use kebab-case. JavaScript variables use camelCase. Python uses snake_case. Using the wrong case in published content signals unprofessionalism and can hurt brand credibility.
Title Case: Article headings, page titles, blog posts. UPPER CASE: Acronyms, warnings, strong emphasis. lower case: Informal content, usernames, email addresses. Sentence case: Normal paragraphs, captions, descriptions. camelCase: JavaScript variables and functions. snake_case: Python variables, database columns. kebab-case: URL slugs, CSS classes, HTML attributes.