Best Free Online Slug Generator

A URL slug is the readable identifier used in web addresses — the part that comes after the domain and makes the URL meaningful: /blog/how-to-build-a-rest-api. Good slugs are lowercase, hyphen-separated, contain only ASCII alphanumeric characters, and are derived from the content title. Creating slugs manually from long or complex titles — especially those containing special characters, accented letters, punctuation, or emoji — is tedious and inconsistent. devtoolkit.sh's Slug Generator converts any text to a correctly formatted URL slug instantly. It lowercases the text, replaces spaces with hyphens, removes or transliterates special characters and accented letters (é → e, ñ → n), removes punctuation, strips emoji, and collapses multiple hyphens into one. The result is always a clean, valid URL slug. This is useful for CMS content creation, SEO optimisation, programmatic route generation, and any system that builds URLs from user-provided content. Google prefers hyphens over underscores in slugs, and this generator follows that convention by default, giving you SEO-optimised output without any manual adjustment.

FAQ

What characters are allowed in a slug?
Slugs should contain only lowercase letters (a-z), digits (0-9), and hyphens (-). No spaces, special characters, or uppercase letters.
How are accented characters handled?
Accented characters are transliterated to their closest ASCII equivalent (é → e, ü → u, ñ → n) before generating the slug.
Can I customise the separator?
The default separator is a hyphen, which is preferred by Google for SEO. Some tools let you switch to underscore, but hyphens are recommended.