Slug Generator

This free online slug generator turns any title or phrase into a clean, URL-friendly slug. It lowercases the text, strips accents and punctuation, and joins words with hyphens — exactly what you want for SEO-friendly page URLs, blog permalinks, and file names. Everything runs in your browser with no upload.

How to use

1. Paste your title or text into the input box (or click Sample to try it).
2. Optionally switch to underscores or keep the original case.
3. Copy the generated slug from the output box.

Why hyphens and not underscores

Both work, but hyphens are the safer default. Search engines have long treated the hyphen as a word separator while historically reading black_cat as a single token — meaning an underscored slug can fail to match a two-word search. Hyphens are also easier to read in a URL, since an underscore frequently disappears under the link underline. Underscores remain reasonable for filenames and code identifiers, which is why the option is here.

Treat a published slug as permanent

A slug is part of the URL, so changing it after publication breaks every inbound link, discards the ranking signals that URL accumulated, and turns anything already shared into a dead end. If a change is unavoidable, add a 301 redirect from the old slug so both readers and crawlers are carried across.

The practical lesson is to write slugs that will not need changing: leave out the year, the word “new”, version numbers, and anything else that expires. A post at /seo-guide-2025 looks stale in January and cannot be fixed without a redirect, whereas /seo-guide can be updated in place indefinitely.

Accents and non-Latin scripts

Accented Latin letters are folded to their plain equivalents, so Café Münchén becomes cafe-munchen. Be aware that correct transliteration is language-specific: German convention expands ü to ue, giving muenchen, while French and Spanish simply drop the mark. No automatic rule is right for every language, so adjust by hand when the audience expects a particular convention.

Scripts without ASCII equivalents — Korean, Japanese, Chinese, Arabic, Cyrillic — are removed rather than guessed at, which can leave a title with almost nothing behind. Either write a short English slug for those pages or use the original script directly, since browsers and search engines handle percent-encoded Unicode URLs correctly even though they look unwieldy when pasted as plain text.

Common uses

Turning blog post titles into SEO-friendly URLs, generating stable permalinks for a CMS, naming files and assets consistently, and building anchor IDs for headings. For bulk work, paste a list of titles and clean the result with remove duplicate lines to catch two posts that would collide on the same slug. For other naming conventions such as camelCase or snake_case, the case converter handles the programming styles.