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Case Converter

Free online text case converter. Convert between lowercase, UPPERCASE, Title Case, camelCase, snake_case, kebab-case, and more. Character and word count included.

Quick Convert

lowercase

All characters lowercase

Convert text between writing and coding case styles in seconds. The Case Converter helps you switch capitalization and separators without manually rewriting content, which is useful when moving between documentation, code, and publishing workflows. If you need URL-safe output after conversion, you can generate clean paths with the Slug Generator, check copy length with the Word Counter, or create sample input using the Lorem Ipsum Generator.

How to use

  1. Paste or type text in the input panel.
  2. Select a target format such as Title Case, camelCase, or snake_case.
  3. Review the converted output and live statistics.
  4. Use apply mode when you want to chain another conversion from the latest output.

For mixed content, convert one block at a time so sentence capitalization and identifier formatting remain predictable. This is especially helpful when a paragraph includes both natural language and code-like strings.

Key features

  • Multiple formats for writing and development, including lowercase, UPPERCASE, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, dot.case, and path/case.
  • Instant conversion with no submit step, so you can test alternatives quickly.
  • Live text metrics for characters, words, sentences, and lines.
  • Apply-and-iterate workflow for multi-step transformations.
  • Consistent separator handling for hyphens, underscores, dots, and slashes.

Common use cases

Developers use this tool to normalize variable names, convert API field labels into code-friendly identifiers, and create constants from plain text. Content teams use it to fix inconsistent capitalization in headlines, product names, and section labels before publishing. SEO and editorial workflows often convert phrases to kebab-case for URL patterns, then validate final length in metadata fields. Educators and technical writers also use case conversion to prepare documentation examples that match language conventions.

Technical details

The converter tokenizes input into word-like segments, then rebuilds output according to each format rule. Separator-based formats like snake_case and kebab-case preserve word order while replacing delimiters. Joined formats like camelCase and PascalCase remove separators and apply positional capitalization rules. Sentence-oriented formats detect punctuation boundaries to avoid forcing every word into title style. Newlines are preserved so multi-paragraph text stays structured.

Example naming patterns:

const myVariableName = "value";
class UserAccount {}
const MAX_RETRY_COUNT = 3;
user_name = "value"
def get_user_data():
    pass

FAQ

Is the Case Converter free and does it have usage limits?

Yes. You can use the tool for free without creating an account, and there is no daily conversion quota for normal use.

Is my text uploaded or stored when I convert cases?

No. Conversion runs in your browser, so your text is not sent to our servers during normal tool usage.

Which case formats are supported?

The tool supports common writing and programming formats, including lowercase, UPPERCASE, Title Case, Sentence case, camelCase, PascalCase, snake_case, kebab-case, and more.

Can I use this for developer naming conventions?

Yes. It is useful for quickly switching identifiers between conventions used in JavaScript, Python, CSS, URLs, and configuration files.

Privacy note

All processing runs locally in your browser. Your text stays on your device and is not stored by this tool.

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