What is Slugify String Online?
A URL slug is the human-readable part of a web address that identifies a page. Good slugs are lowercase, hyphen-separated, stripped of special characters, and contain relevant keywords. This tool converts any string into a well-formed slug following SEO best practices.
How to Use Slugify String Online
- Type or paste your title or text.
- The slug is generated instantly below.
- Copy and use it as your URL path, file name, or database key.
Example
SEO-ready URL slug
Input
How to Deploy a Next.js App in 2025!Output
how-to-deploy-a-nextjs-app-in-2025Frequently Asked Questions
Why use hyphens instead of underscores in URLs?
Google recommends hyphens as word separators in URLs. Underscores are treated as word-joiners, which can hurt SEO. "my-page" is preferred over "my_page".
Should URL slugs be lowercase?
Yes. Lowercase slugs prevent duplicate content issues since servers may treat "My-Page" and "my-page" as the same or different URLs, causing SEO problems.