A slug is the human-readable part of a URL that identifies a page, such as the my-first-post part of example.com/blog/my-first-post. Good slugs are short, lowercase, and use hyphens between words for readability and SEO.

Why are accented letters changed?

URLs are safest when limited to ASCII letters, digits, and hyphens. The tool normalises text to NFD form and removes combining diacritics so that café becomes cafe, avoiding percent-encoding that makes URLs ugly and harder to share.

Should I use hyphens or underscores?

Search engines treat hyphens as word separators but underscores as joiners, so hyphens are the standard recommendation for SEO-friendly URLs. Underscores are mainly used for filenames or code identifiers.

Does it handle multiple spaces and symbols?

Yes. Runs of spaces, punctuation, and symbols all collapse to a single separator, and leading or trailing separators are trimmed, so messy input still yields a tidy slug.

Slugify — Gera Tools

A slug is the readable, URL-safe identifier at the end of a web address. This tool converts any title or phrase into a clean slug by stripping accents, lowercasing, removing punctuation, and joining words with a single separator.

How it works

The conversion runs through a fixed pipeline:

1. Unicode-normalise to NFD, then remove combining marks (é → e)
2. Lowercase (optional)
3. Replace every run of non-alphanumeric characters with the separator
4. Trim leading and trailing separators

Normalising to NFD splits an accented character into its base letter plus a separate combining mark, which is then dropped. Collapsing all non-alphanumeric runs to one separator means spaces, commas, slashes, and emoji all turn into a single hyphen.

Example and tips

The input Crème Brûlée: 10 Best Recipes! becomes creme-brulee-10-best-recipes. Keep slugs short and meaningful — drop filler words like “the” and “a” where possible. Avoid changing a slug once a page is published, since old links and search rankings point at the original URL.