Text to Slug Converter — Generate URL-Safe Slugs

The best URL slugs are short enough to be readable at a glance but descriptive enough to convey the page topic. Google recommends keeping URLs concise — 3 to 5 meaningful words is the practical target for most pages. All slugs should use lowercase letters only; uppercase creates duplicate URL issues since some servers treat /Page and /page as different addresses while others treat them as the same, leading to canonical confusion. Avoid numbers, dates, and version identifiers in slugs unless they are essential to the content identity.

Google treats hyphens as word separators in URLs — the search engine reads "best-seo-practices" as three separate words. Underscores, by contrast, are treated as character joiners — "best_seo_practices" is read as a single token "bestseopractices." This distinction means hyphenated slugs rank correctly for individual keyword terms while underscored slugs do not. The W3C URL specification and Google's own style recommendations both specify hyphens as the preferred word separator in URL paths.

Stop words are common words (a, an, the, of, and, for, in, on, with, to) that carry little semantic value in a URL. The title "The Complete Guide to Building a REST API" becomes a cleaner slug as "complete-guide-building-rest-api" — shorter, easier to read, and the essential keywords remain. Removing stop words reduces URL length while preserving meaning. The exception: keep stop words when they are part of a proper name or brand (e.g. "lord-of-the-rings" should stay as-is because the stop words are part of the title).

WordPress auto-generates slugs from the post title by lowercasing, replacing spaces with hyphens, and removing most punctuation. It keeps stop words by default (a WordPress post titled "The Best Plugins" becomes "the-best-plugins"), which is suboptimal for SEO. Ghost CMS takes a similar approach but is slightly more aggressive about removing special characters. Hugo, the static site generator, uses the filename as the slug by default, giving full manual control. All three allow manual slug override in the post editor, and this override should be used when the auto-generated slug is too long or includes stop words.

Override the auto-generated slug when: the title contains stop words that inflate the slug length, the title is very long and can be summarized in fewer words, the title contains a year or number that will become outdated ("best-seo-tools-2023" ages poorly), or the title uses punctuation or special characters that produce an ugly slug. Override before the first publish — changing slugs on already-indexed pages requires a 301 redirect to avoid losing existing ranking equity and breaking inbound links.

Once a slug is published and indexed, changing it creates a new URL. The old URL becomes a 404 unless you set up a redirect. Many sites accumulate ranking signals on a URL over months or years — backlinks, social shares, and click-through history all attach to the specific URL string. Changing the slug without a proper 301 redirect loses all of this accumulated equity. The best practice is to get the slug right before publishing, using a tool like this one to generate a clean, optimized slug during the drafting phase before the post ever goes live.