Thunder Tools

Slug Generator

This tool converts titles, names, or any text into a lowercase, URL-safe slug — stripping accents, replacing spaces and punctuation with hyphens or underscores, and cleaning up the result as you type.

Separator
Slug

How it works

Type or paste any text and the slug updates instantly: accented letters are converted to their plain ASCII equivalent, the text is lowercased, and anything that isn't a letter or number is replaced with your chosen separator.

Tip

Hyphens are the standard separator for URLs and are treated better by search engines than underscores — stick with hyphens unless your platform specifically requires underscores.

Why are accented letters like é or ñ converted to plain letters?

URLs and file systems don't reliably support every accented or special character across browsers, servers, and operating systems. Converting "café" to "cafe" keeps the slug compatible everywhere links are shared.

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