Free URL Slug Generator: Build SEO-Friendly URLs Instantly
Turn any blog title, product name, or marketing headline into a clean, lowercase, diacritic-free, URL-safe slug — with separator, case, stop-word, and length controls. 100% client-side; built for content teams and SEO professionals.
Unicode-Aware Transliteration
Café → cafe, Düsseldorf → dusseldorf, Crème Brûlée → creme-brulee. NFD-decomposes accents then strips combining marks. Handles ß, æ, ø, ł, þ, and more.
Full Control
Hyphen, underscore, period, or no separator. Lowercase, preserve case, or uppercase. Optional stop-word removal (a, the, and, …) and max-length cap with word-boundary truncation.
RFC 3986 Compliant
Output is restricted to URL-unreserved characters: A–Z, a–z, 0–9, hyphen, period, underscore, tilde. Validates the result and refuses to leave dangling separators at the edges.
100% Client-Side
Slug generation runs entirely in your browser. Article titles in stealth-launch mode, unreleased product names, and other sensitive copy never reach our servers.
The Content Team's URL Slug Generator That Actually Respects Unicode
The slug is the part of a URL your readers actually see and remember. /blog/2026/03/why-next-js-is-fast is forgettable; /blog/why-next-js-is-fast is shareable. Yet most slug generators get three things wrong: they butcher accented characters (turning café into caf), they leave dangling hyphens at the edges, and they do not give content editors control over stop words or length caps. Our Free Online URL Slug Generator fixes all three — and ships with RFC 3986 validation so the output is provably safe for any web framework or CDN.
Slugify works hand in hand with our Case Converter (when you need to align slug case with file or variable case), the UUID Generator (to disambiguate slugs at the data layer), and the URL Encoder/Decoder (when you need to percent-encode the rest of the path, querystring, or fragment).
What Separates a Great Slug from a Bad One
| Attribute | Great Slug | Bad Slug |
|---|---|---|
| Example | /seo-friendly-urls | /p?id=12345&cat=8 |
| Case | All lowercase | Mixed (Path-Sensitive on some servers) |
| Separators | Hyphens (word-separating) | Underscores or spaces |
| Length | Under 60 chars, keyword-rich | 120+ chars, padded with stop words |
| Stability | Permanent — never changes | Includes mutable IDs or dates |
SEO Best Practices for URL Slugs (2026)
Lead With the Keyword
Put the primary keyword in the first 1–2 segments. /free-url-slug-generator ranks better than /the-ultimate-online-free-tool-for-generating.
Hyphens, Always
Google confirmed hyphens act as word separators; underscores act as word joiners. my-blog-post parses as three words; my_blog_post parses as one.
Don't Embed Dates
If you embed a year, you commit to evergreen content rewrites. Either keep the date out, or commit to refreshing the year via 301 redirects each January.
301-Redirect Renames
If you must change a slug, 301 the old path to the new one and update internal links. Never break a URL that has external backlinks pointing at it.
A Content-Editor Workflow for Generating Slugs
Lead With the Primary Keyword
Drop your article H1 here. If the slug exceeds 60 characters, toggle “Strip Stop Words”.
Sanity-Check Diacritics
For international titles, confirm transliteration produced a readable ASCII slug. Disable it if your CMS supports IRIs.
Add a Discriminator
If two posts could collide, append a short identifier from our UUID Generator or a sequence number.
Lock It Forever
Once a slug ships, treat it as immutable. Future renames go through 301 redirects — backlinks are a finite resource.