Case Converter
All-in-oneConvert text between uppercase, lowercase, title case, sentence case, camelCase, PascalCase, snake_case, and kebab-case.
Case Tools
Case Tools
Convert text between uppercase, lowercase, title case, sentence case, Capitalize Words, camelCase, PascalCase, snake_case, and kebab-case. Start with the all-in-one Case Converter, or use a focused converter for one specific format.
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Featured · All-in-one
Case Converter
The all-in-one case converter for every text case format — uppercase, lowercase, title case, sentence case, camelCase, PascalCase, snake_case, and kebab-case.
Use Case Converter when you need every text case format in one workspace. It supports uppercase, lowercase, title case, sentence case, Capitalize Words, camelCase, PascalCase, snake_case, and kebab-case.
All Case Tools
1 all-in-one tool and 4 focused converters.
Which tool should I use?
Choose the all-in-one Case Converter or a focused tool for one format.
Need every format?
9 formats in one tool
Use Case Converter
Make all caps
hello → HELLO
Use Uppercase Converter
Make all lowercase
Hello → hello
Use Lowercase Converter
Format titles
hello world → Hello World
Use Title Case Converter
Clean sentences
mixed CASE → Sentence case.
Use Sentence Case Converter
Developer formats
hello world → helloWorld
Use Case Converter
When to use each case tool
Start with the all-in-one converter or pick a focused tool for one format.
| Need | Best tool |
|---|---|
| Every case format | Case Converter |
| ALL CAPS text | Uppercase Converter |
| All lowercase text | Lowercase Converter |
| Article titles | Title Case Converter |
| Readable paragraphs | Sentence Case Converter |
| Developer naming formats | Case Converter |
| URL-friendly text | Case Converter + Slug Generator |
Case Format Comparison
See how each format transforms the same sample text.
| Format | Example | Best for |
|---|---|---|
| UPPERCASE | HELLO WORLD EXAMPLE | Emphasis, labels, acronyms |
| lowercase | hello world example | Normalization, search, cleanup |
| Title Case | Hello World Example | Headlines, titles, article names |
| Sentence case | Hello world example. | Paragraphs, emails, readable text |
| Capitalize Words | Hello World Example | Labels, names, lists |
| camelCase | helloWorldExample | JavaScript variables, APIs |
| PascalCase | HelloWorldExample | Classes, components, types |
| snake_case | hello_world_example | Python, databases, filenames |
| kebab-case | hello-world-example | URLs, slugs, CSS classes |
All nine formats are available in the Case Converter.
Popular Case Conversion Workflows
Chain case tools with cleanup and slug tools for common jobs.
Blog title formatting
Developer variable names
Case Converter camelCase / PascalCase / snake_case
URL slug preparation
Case Converter kebab-case Slug Generator
CSV text normalization
Social caption cleanup
Filename cleanup
Case Converter snake_case or kebab-case
Developer Case Formats
Naming conventions for code, APIs, databases, and URLs — all in the Case Converter.
camelCase
helloWorldExample
Used in JavaScript variables and APIs.
PascalCase
HelloWorldExample
Used in classes, components, and types.
snake_case
hello_world_example
Used in Python, databases, and filenames.
kebab-case
hello-world-example
Used in URLs, slugs, and CSS class names. Pair with the Slug Generator for permalinks.
Writing Case Formats
Case styles for headlines, body copy, and everyday text cleanup.
UPPERCASE
Best for emphasis, labels, warnings, and acronyms. Try the Uppercase Converter.
lowercase
Best for normalization and simple cleanup. Try the Lowercase Converter.
Title Case
Best for headings, article titles, and book names. Try the Title Case Converter.
Sentence case
Best for paragraphs, emails, and readable documents. Try the Sentence Case Converter.
Related tools outside this category
Clean, format, and generate slugs alongside case conversion.
Frequently Asked Questions
View all FAQs →Which case converter should I start with?
Start with the Case Converter for all nine formats in one workspace. Use a focused converter when you only need uppercase, lowercase, title case, or sentence case.
What is the difference between title case and sentence case?
Title case capitalizes major words in headings — use the Title Case Converter. Sentence case capitalizes only the first word of each sentence — better for body copy via the Sentence Case Converter.
What is the difference between camelCase and PascalCase?
camelCase starts with a lowercase letter (helloWorld) — common for JavaScript variables. PascalCase starts uppercase (HelloWorld) — common for classes and React components. Both are in the Case Converter.
What is the difference between snake_case and kebab-case?
snake_case uses underscores (hello_world) — common in Python and databases. kebab-case uses hyphens (hello-world) — common in URLs, slugs, and CSS classes.
Which case format is best for URLs?
Use kebab-case from the Case Converter, then the Slug Generator for clean, URL-safe permalinks.
Which case format is best for programming?
It depends on the language: camelCase for JavaScript variables, PascalCase for classes, snake_case for Python, and kebab-case for URLs. The Case Converter supports all developer formats.
Is my text uploaded to a server?
No. All case conversion runs locally in your browser. Text is never sent to or stored on a server.
Can I convert long text?
Yes. Paste or type large blocks — conversion runs instantly in your browser with no upload limits for typical documents and articles.