URL Slug Generator — How to Create SEO-Friendly URLs

What is a URL slug?

A URL slug is the part of a URL that identifies a specific page in a human-readable format. For example, in the URL https://privatool.com/blog/url-slug-guide, the slug is url-slug-guide.

Why URL slugs matter for SEO

Search engines use URL slugs to understand what a page is about. A clear, keyword-rich slug:

• Helps Google categorize your content
• Appears in search results (users see the URL)
• Gets used as anchor text when people copy-paste links
• Remains stable over time (changing URLs loses SEO value)

Good vs bad URL slugs

URL slug best practices

• Use hyphens (-) not underscores (_) — Google treats hyphens as word separators
• Keep it short — 3–5 words is ideal
• Include your keyword — the slug should reflect the page topic
• Lowercase only — URLs are case-sensitive; lowercase avoids duplicates
• Remove stop words — remove "the", "a", "and" etc. when possible
• No special characters — no &, %, #, ?, =, +

How to generate URL slugs free

1. Go to Text to Slug Generator
2. Paste your page title or text
3. Choose separator (hyphen recommended)
4. Toggle stop word removal for shorter slugs
5. Preview the full URL with your domain
6. Copy and use in your CMS

Changing existing slugs

If you need to change an existing URL slug:

1. Set up a 301 redirect from the old URL to the new URL
2. Update all internal links pointing to the old URL
3. Update your sitemap
4. Submit the new URL to Google Search Console

Never change slugs without setting up redirects — you'll lose all SEO value.

Handling non-English text

This is where naive slug generators produce broken output. Stripping anything non-ASCII turns Añejo Tequila into ejo-tequila and a Cyrillic or Chinese title into an empty string.

The correct approach is transliteration — mapping characters to their closest ASCII equivalent — before stripping:

Unicode normalisation does much of this work: NFD decomposes é into e plus a combining accent, and the accent can then be removed while keeping the base letter.

const slug = (s) => s
  .normalize('NFD').replace(/[̀-ͯ]/g, '')  // strip accents
  .toLowerCase().trim()
  .replace(/[^a-z0-9]+/g, '-')
  .replace(/^-+|-+$/g, '')

Note this handles Latin scripts but not Cyrillic, Greek, or CJK, which need explicit transliteration tables. For those, allowing real Unicode in the URL is often better than an empty slug.

Should slugs contain Unicode?

Modern browsers support Internationalised Resource Identifiers, so /статьи/ works and displays correctly. The catch is that it is transmitted percent-encoded, so the raw URL becomes /%D1%81%D1%82%D0%B0%D1%82%D1%8C%D0%B8/ — unreadable when copied into an email, a chat message, or an analytics report.

Practical rule: transliterate to ASCII for a global audience, and use native script when your audience shares it and readability in their language matters more than portability.

Length and stop words

Search engines truncate long URLs in results, and long slugs are harder to share. Three to five meaningful words is a reasonable target.

Removing stop words (a, the, of, for) shortens slugs without losing meaning — how-to-make-the-best-coffee-at-home becomes make-best-coffee-home. Do not do this mechanically, though: sometimes the stop word carries the meaning. war-of-the-worlds should not become war-worlds.

Collisions

Two posts titled "2026 Update" produce the same slug. Options, in order of preference:

1. Append a discriminator — 2026-update-pricing versus 2026-update-features. Best for readers and search.
2. Append a counter — 2026-update-2. Ugly but functional.
3. Prefix with a date or category — /blog/2026/01/update. Also scopes the namespace.

Avoid appending a random ID; it defeats the readability that makes slugs worth having.

Frequently asked questions

Hyphens or underscores?

Hyphens. Google treats a hyphen as a word separator and an underscore as a word joiner, so blue_widgets may be read as one token while blue-widgets reads as two. This is long-standing, explicitly documented behaviour.

Should slugs include dates?

Only for time-sensitive content like news. For evergreen articles a date in the URL makes the piece look stale and forces a URL change if you refresh it.

Do slugs affect rankings?

Slightly and indirectly. Keywords in a URL are a minor signal, but a readable URL improves click-through from search results and is more likely to be linked with meaningful anchor text.

Can I use uppercase?

Technically yes, but paths are case-sensitive on most servers, so /About and /about become different URLs — duplicate content, split link equity, and broken links when someone types it differently. Always lowercase.

How do I change a slug safely?

Add a 301 redirect from old to new before publishing the change. Without it every existing link and any accumulated ranking points at a 404.