Text Case Converter
Convert text between any case format instantly. Runs entirely in your browser.
How to Use Text Case Converter
Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, and more. Instant, 100% client-side.
Type directly into the input field, paste from your clipboard, or upload a file. The tool accepts a wide range of inputs and handles edge cases automatically.
Click the action button or watch as the tool processes your input in real time. All computation happens locally in your browser - nothing is sent to any server.
Copy the output to your clipboard with one click, or download it as a file. Your data stays private throughout the entire process.
Why Choose PrivConvert?
Unlike other online tools that upload your files to remote servers, store them for days, and may use them for AI training or data mining, PrivConvert was built with privacy as the foundation.
Files are processed in volatile memory (RAM) and immediately purged. Nothing is ever written to disk or backed up.
All uploads and downloads are encrypted with TLS 1.3. Your files cannot be intercepted in transit.
Use any tool instantly without signing up, providing an email, or creating a profile. No tracking cookies, no user profiling.
Compatible with Windows, macOS, Linux, iOS, and Android. No plugins or desktop software needed - just a modern web browser.
Trusted by Thousands of Users
PrivConvert processes thousands of file conversions every day. Our commitment to privacy and security has made us the go-to choice for professionals, developers, and privacy-conscious users worldwide.
Frequently Asked Questions
Is Text Case Converter free to use?
Yes, completely free with no limits, no sign-up, and no hidden fees. Use it as many times as you want.
Is my data safe?
All processing happens directly in your browser. Your data is never sent to any server, never stored, and never shared. It's 100% client-side.
Does it work on mobile devices?
Yes. The tool works on any device with a modern web browser - smartphones, tablets, laptops, and desktops.
Do I need to create an account?
No. You can use the tool instantly without signing up, providing an email, or creating any profile.
The naming conventions, and where each belongs
Converting between cases is mechanical; knowing which one a given context wants is the useful part. The common conventions and where they are expected:
- camelCase — JavaScript and Java variables and functions, JSON keys in most web APIs.
- PascalCase — class and type names in nearly every language, React component names.
- snake_case — Python variables and functions, Ruby, SQL column names, and JSON keys in APIs with a Python or Rails backend.
- kebab-case — URLs, CSS class names, HTML attributes, npm package names. Note that it is illegal in identifiers in most languages, because the hyphen parses as subtraction.
- SCREAMING_SNAKE_CASE — constants and environment variables, near-universally.
Why URLs prefer hyphens
Search engines have long treated hyphens as word separators and underscores as
word joiners, so /blue-widgets reads as two words while
/blue_widgets can read as one. Combined with the fact that
underscores can be hidden by link underlining, hyphens are the established
convention for slugs.
Where automatic conversion goes wrong
Acronyms. parseXMLDocument to snake_case is ambiguous — is it
parse_xml_document or parse_x_m_l_document? Different
libraries disagree, which is why converting a schema full of acronyms in both
directions may not return you to the original. Check anything containing
ID, URL, API or HTTP.
All conversion happens in your browser.