URL Slug Optimizer
Paste a title or phrase. The optimizer converts it to a clean, SEO-friendly slug — lowercased, hyphenated, with stopwords optionally removed, special characters stripped, and length capped. Warnings flag the patterns that hurt SEO most: uppercase characters, underscores instead of hyphens, query-parameter-like syntax, excessive length, and consecutive duplicate words. Three variants are produced (compact, descriptive, semantic) so you can pick the tradeoff between brevity and keyword coverage.
Why URL Slugs Are Surface Area You Control
URL slugs appear in three high-CTR places — the search result's URL line, the social-share preview, and the address bar — and Google's URL-structure guidance asks for simple, descriptive words in them. How much the words weigh in ranking is small and not published, so treat a slug as a readability and click-through asset first. They are also one of the few SEO elements that is effectively permanent: once a URL is indexed and earning backlinks, changing it requires 301-redirect maintenance forever. Getting the slug right at publish time is therefore disproportionately valuable. Pair this with Headline Analyzer to optimize the title and slug as a unit.
How the Three Variants Differ
The compact variant strips all stopwords (the, a, an, of, for, to, in and others) and keeps at most 5 words — best for evergreen pages where the slug should be tight. The descriptive variant keeps the stopwords that change meaning (with, for, in, and to after how) and keeps at most 8 words — best for tutorial and comparison content. The semantic variant keeps every word, up to 12 — best for editorial content where the slug should read as a phrase. All three lowercase, hyphenate and drop symbols. Apostrophes join words (don't becomes dont), accents on Latin letters are removed (café becomes cafe), and letters in other scripts are kept as they are (日本語, привет), as Google recommends using words in your audience's language. Warnings cover uppercase, underscores, query-string characters, titles over 80 characters and a word repeated next to itself.
Frequently Asked Questions
Should I include stopwords in URLs?+
Generally no — most SEO style guides remove them for cleaner, shorter URLs. Exceptions: when removing them changes meaning (how to vs how) or when the stopword is a part of the keyphrase being targeted. The descriptive and semantic variants keep them; the compact variant strips them.
Are uppercase letters in URLs bad?+
Mixed case invites duplicates: URL paths are case-sensitive by the URL standard, so /About and /about can be two different pages unless your server folds case or redirects one to the other. Lowercase slugs avoid the question entirely, so the optimizer always lowercases.
Hyphens or underscores in URLs?+
Hyphens. Google's URL-structure guidance recommends hyphens instead of underscores to separate words, because hyphens help users and search engines identify the separate concepts in a URL. The optimizer warns about underscores and turns them into hyphens.
How short should a slug be?+
Short enough to read at a glance and long enough to say what the page is: usually three to six meaningful words. There is no published length limit or penalty, but very long slugs are harder to read, share and remember.
Should the slug match the title exactly?+
Not necessarily — the title is for humans, the slug is for search engines and URLs. The slug should contain the primary keyword and key modifiers, but does not need every word in the title.
Can I include numbers in slugs?+
Yes, when they mean something (a year, a version, a count). Prefer descriptive words over opaque ID numbers; Google's URL-structure guidance lists long, unreadable ID numbers as not recommended.
What about non-English slugs?+
Use your audience's language; Google's guidance recommends it, with non-ASCII characters UTF-8 encoded in the URL. The optimizer keeps letters from every script, but its stopword list is English, so other languages keep all their words.
Should I change existing slugs to be more optimal?+
Usually no. A better slug is a small gain, and changing it means redirecting the old URL permanently and updating internal links. Change slugs that are actively harmful (session IDs, query strings, unreadable codes) or part of a planned migration.
Built by Derek Giordano · Part of Ultimate Design Tools
Privacy Policy · Terms of Service