kebab-case Converter

hello world → hello-world

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What the kebab-case Converter Does

The kebab-case Converter (often called dash-case or URL-slug generator) transforms standard text into a continuous lowercase string separated by hyphens. It automatically strips out irregular punctuation, capital letters, and spaces, skewering the words together with dashes.

This strict formatting is the absolute standard for frontend web developers, SEO specialists, and technical writers who need to generate web-safe URLs, CSS classes, and HTML IDs from standard readable text.

When to Use kebab-case Formatting

While backend developers often rely on snake_case (underscores), the frontend web ecosystem is built almost entirely on kebab-case (hyphens). You will need this tool when:

  • Creating SEO-Friendly URLs: Search engines like Google treat hyphens as spaces. Formatting a blog URL as /my-new-post ensures search engines can read the individual words, whereas underscores (/my_new_post) can blend the words together and harm rankings.
  • Writing CSS and HTML: It is the universally accepted naming convention for CSS classes and HTML IDs (e.g., <div class="hero-image-container">), keeping stylesheets highly readable.
  • Naming Repositories and Packages: Node.js packages (NPM), Docker images, and GitHub repositories use kebab-case to ensure maximum compatibility across different operating systems and file structures.

Related Developer Tools

If you are optimizing code or building web architecture, these related formatting utilities are essential:

  • snake_case Converter - Swap hyphens for underscores, the standard format for SQL databases and Python variables.
  • camelCase Converter - Remove spaces and capitalize subsequent words for JavaScript variables and JSON keys.
  • CONSTANT_CASE Converter - Generate uppercase, underscore-separated strings for environment variables and global configurations.