Creating SEO-Friendly URL Slugs
Paste a title and this tool converts it into a URL slug: lowercase, special characters removed, spaces replaced with hyphens, and no leading or trailing separators. The result updates as you type.
The slug is the readable part of a URL that identifies a specific page — the best-running-shoes in example.com/blog/best-running-shoes. It is a small decision that becomes permanent quickly, because changing it later means setting up redirects and losing some accumulated signal.
What makes a good slug
A good slug tells you what the page is about before you open it. Someone seeing example.com/best-running-shoes-beginners in a search result or a shared link knows exactly what they will get; example.com/p?id=8842 tells them nothing.
Short is better than long, but clear beats short. Three to five meaningful words is a reasonable target. Stripping every filler word until the slug is cryptic defeats the purpose — running-shoes-beginners reads fine, but shoe-bgnr does not.
Include the primary keyword, but naturally. The slug is a minor ranking signal at best; its real value is that it appears in search results, gets used as anchor text when people paste raw URLs, and reassures the reader they are in the right place.
Formatting rules
- Lowercase everything. Some servers treat /Page and /page as different URLs, which creates accidental duplicates.
- Use hyphens, not underscores. Google has been explicit that hyphens are treated as word separators and underscores are not.
- No spaces — they become %20 and make URLs ugly and fragile when pasted into plain text.
- Strip punctuation, apostrophes and symbols rather than encoding them.
- Avoid stop words where they add nothing: the-best-guide-to-running-shoes works better as best-running-shoes-guide.
- Skip dates unless the content is genuinely time-bound, so evergreen pages do not look stale.
Why changing slugs is expensive
Once a URL is published, other things start depending on it. External sites link to it, people bookmark it, it accumulates ranking signals, and it appears in your own internal links and sitemap.
Changing it means every one of those has to be redirected. A 301 handles the external links and preserves most of the signal, but you have added a hop for every visitor arriving from an old link, and redirect chains accumulate if the URL changes more than once. Trace existing chains with the Redirect Chain Checker.
The practical consequence is to spend a moment on the slug before publishing rather than fixing it later. It is one of the few things on a page that is genuinely awkward to change afterwards.
Slugs and site structure
The slug is one part of the URL; the path before it also communicates structure. /blog/technical-seo/canonical-tags tells readers and search engines where the page sits in your hierarchy in a way a flat /canonical-tags does not.
Depth has a cost though. Every extra level makes URLs longer and usually means the page sits more clicks from the homepage, which weakens its internal link support. Two or three levels is plenty for most sites.
Be consistent within a section. Mixing /blog/post-name and /articles/2026/03/post-name across the same site makes the structure harder to reason about and complicates any future migration.
Handling non-English titles
Non-ASCII characters in URLs are legal and browsers display them readably, so a slug in Arabic, Hindi or Chinese is a valid choice — often the better one for a native-language audience, since a transliterated slug is meaningless to both groups.
The trade-off is that the encoded form is what appears in analytics, logs and sitemaps, which makes reports harder to scan. This tool strips characters outside the safe ASCII set, so if you want a non-English slug you will need to write it directly rather than generating it here.
For sites serving several languages, the Hreflang Generator handles telling search engines which slug serves which language and region.
Common slug mistakes
- Leaving the CMS default, which is often the full title including stop words and punctuation.
- Using post IDs or dates in the slug for content that is not time-sensitive.
- Keyword-stuffing the slug with repeated variations — cheap-running-shoes-buy-running-shoes-online.
- Changing slugs during a redesign without setting up redirects, which drops every external link.
- Mixing uppercase and lowercase across a site, creating duplicate URLs on case-sensitive servers.
- Making slugs so short they stop being readable in the pursuit of brevity.
Frequently asked questions
Should I use hyphens or underscores?
Hyphens. Google treats hyphens as word separators and underscores as joiners, so best_running_shoes may be read as one token while best-running-shoes reads as three words.
How long should a URL slug be?
Three to five meaningful words is a good target. Long enough to describe the page, short enough to read at a glance and share without truncation. Clarity matters more than hitting a specific length.
Do slugs affect rankings?
Only slightly as a direct signal. Their bigger value is indirect: readable URLs get clicked more in search results, get used as descriptive anchor text when pasted raw, and reassure visitors the page matches what they wanted.
Can I change a slug after publishing?
You can, but set up a 301 redirect from the old URL or you lose every external link and bookmark pointing at it. Because it is awkward to undo, it is worth getting the slug right before publishing.
Should the slug match the page title exactly?
Not necessarily. Titles often include brand names, stop words and punctuation that add nothing in a URL. Take the meaningful core of the title and drop the rest.