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Case Converter

Convert text between uppercase, lowercase, title case, sentence case, camelCase, and snake_case.

Convert text between uppercase, lowercase, title case, sentence case, camelCase, and snake_case.

Quick start: Paste or type your text into the editor. → Click the case you want: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, or kebab-case. → Review the converted output in the result box.

How to use Case Converter

  1. 1

    Paste or type your text into the editor.

  2. 2

    Click the case you want: UPPERCASE, lowercase, Title Case, Sentence case, camelCase, PascalCase, snake_case, or kebab-case.

  3. 3

    Review the converted output in the result box.

  4. 4

    Re-click a different case if you want a new transformation from the same source.

  5. 5

    Copy the result to your clipboard with one click.

Real examples of Case Converter in action

Fix an all-caps paste
Before
HELLO WORLD THIS IS MY TEXT
After
Hello World This Is My Text (Title Case)
Variable name for code
Before
user profile image
After
userProfileImage (camelCase)
CSS class or slug
Before
Primary Button Hover State
After
primary-button-hover-state (kebab-case)
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Who is Case Converter for?

Developers renaming identifiers between camelCase, snake_case, and kebab-case

Editors repairing text typed with Caps Lock left on

Content writers formatting headlines into Title Case

Database admins standardizing column and table naming

Why use Case Converter?

  • Eight case styles in one place, covering both writing and code-naming conventions.
  • Converts instantly with no server round-trip, so even large pastes transform immediately.
  • Keeps your original input intact so you can switch between cases freely.
  • Handles developer formats like camelCase and snake_case that general writing tools skip.
  • Runs entirely in the browser, keeping unreleased product names and codenames private.

Common use cases

  • Fix a block of text that was pasted in ALL CAPS from a form or PDF.
  • Convert a label like 'user profile image' into camelCase or snake_case for code.
  • Format an article headline into proper Title Case.
  • Turn a heading into a kebab-case CSS class or URL fragment.

How Case Converter keeps your data private

Case transformation is a simple string operation run entirely in your browser's JavaScript engine — there's no tokenization sent to a server, no API call, nothing logged. Confidential naming conventions for unreleased features or product codenames can be transformed without exposure.

How Case Converter compares to alternatives

Honest comparison to other popular options — pick the right tool for the job.

ToolMain limitation
ConvertCase.netLoaded with banner ads and interstitials around the converter
TitleCase.comOnly does title case, with no camelCase or snake_case for developers
VS Code case extensionsWork only inside the editor and require installing an extension first
Case ConverterFree, runs in your browser, no sign-up, no watermarks, no file-size limits beyond your device memory.

Limitations & things to know

  • Title Case uses a simplified rule and does not apply AP or Chicago stylebook exceptions
  • Sentence case cannot detect proper nouns, so names and brands are not re-capitalized

About Case Converter

A case converter is a tool that rewrites the capitalization of text into a chosen style, such as uppercase, lowercase, title case, or programmer formats like camelCase and snake_case. Xevon Tools' Case Converter offers eight styles and applies them instantly in your browser. Two of those styles, Title Case and Sentence case, deserve a note because their behavior surprises people. Title Case here capitalizes the first letter of every significant word using a simplified rule, so it does not enforce AP or Chicago exceptions that keep small words like 'of' and 'the' lowercase mid-title. If you need stylebook-perfect headlines you will still want to fix those by hand. Sentence case lowercases everything and then capitalizes the first letter of the sentence, which means it will not restore the capitals on proper nouns such as names and brands, because reliably detecting a proper noun is not something a simple converter can do. The developer formats are precise: camelCase strips spaces and lowercases the first word while capitalizing each later word (userProfileImage), PascalCase does the same but capitalizes the very first letter (UserProfileImage), snake_case joins words with underscores in lowercase (user_profile_image), and kebab-case joins them with hyphens (user-profile-image), which is the standard shape for CSS classes and URL slugs. Common uses include rescuing text accidentally typed with Caps Lock on, renaming identifiers between programming conventions, standardizing database column names, and formatting headlines. Because the whole operation is local string manipulation with no upload, you can safely convert sensitive material like unannounced feature names or internal codenames.

Frequently asked questions

No. The converter capitalizes the first letter of each significant word, a simplified title-case rule. It does not apply stylebook exceptions, so short words like 'and', 'of', and 'the' may be capitalized where a strict style guide would lowercase them.
Both remove spaces and capitalize each word boundary, but camelCase keeps the first letter lowercase (userProfileImage) while PascalCase capitalizes it (UserProfileImage). camelCase is common for variables, PascalCase for class and type names.
Sentence case lowercases the text but capitalizes the first letter of the sentence, so 'HELLO WORLD' becomes 'Hello world' rather than 'hello world'. It does not re-capitalize proper nouns, which it cannot reliably detect.
No. Case conversion is a pure string operation that runs in your browser, with no network call and nothing logged.

Helpful tutorials

Practical guides that show real workflows for this tool and related tasks.

Your files never leave your device

Every tool on Xevon Tools runs 100% in your browser. No uploads, no servers, no tracking. Free forever.

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Embed Case Converter on your site

Add this tool to your own website, blog, or internal tool page with one line of code. Free to use, no attribution required (but appreciated).

<iframe src="https://www.xevontools.com/embed/case-converter" width="100%" height="640" style="border:1px solid #e2e8f0;border-radius:12px;" title="Case Converter — Xevon Tools"></iframe>
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