URL Slug Generator: How to Create SEO-Friendly URLs in 2026

What is a URL slug?

A URL slug is the human-readable part of a web address that identifies a specific page. In the URL https://example.com/blog/url-slug-generator-guide, the slug is url-slug-generator-guide. It's also called a "post slug" in WordPress, a "permalink" in many CMSes, and a "URL path" in technical specs — same thing, different names.

A clean slug:

• Tells users and Google what the page is about before they click
• Looks trustworthy in search results
• Is easy to share verbally ("slash blog slash hyphen mortgage hyphen calculator hyphen guide")
• Survives URL truncation in tweets, SMS, and email previews

The 7 rules of a good URL slug

1. Use hyphens, not underscores

Google's official guidance: hyphens are word separators, underscores are word joiners. So my-blog-post reads as three words ("my", "blog", "post"), but my_blog_post reads as one ("myblogpost"). Always pick hyphens for SEO. See the URL structure best practices on Google Search Central.

2. Keep it under 60 characters

Google truncates long URLs in search results around the 60–75 character mark, and slugs over that look spammy. Aim for 3–6 words, ideally including your primary keyword early.

3. Lowercase only

Most servers treat URLs as case-sensitive (/About and /about are different paths). Mixed case creates duplicate-content risk and is harder to type. Use lowercase exclusively.

4. Drop stop words

Words like a, the, of, and, in, to, with add length without adding meaning. Strip them from auto-generated slugs:

• Bad: /the-best-way-to-generate-a-url-slug
• Good: /best-way-generate-url-slug
• Better: /url-slug-best-practices

5. Strip punctuation and special characters

Question marks, ampersands, percent signs, and quotes have special meaning in URLs and break things. Remove them entirely or replace with hyphens. Use our URL Slug Generator — it handles this automatically.

6. Normalise accented characters

For international content, convert café to cafe, Crème Brûlée to creme-brulee. Some browsers and email clients still mangle non-ASCII URLs.

7. Lead with your keyword

Search engines weigh the start of the slug more heavily than the end. /free-url-slug-generator ranks better for "url slug generator" than /the-only-tool-you-need-url-slug-generator.

Slug formats by CMS / framework

WordPress

WordPress generates slugs automatically from post titles. Open the post editor → URL → edit slug. Settings → Permalinks should be set to "Post name" (/%postname%/) for the cleanest URLs.

Ghost

Ghost auto-generates a slug from the title and exposes it under "Post settings" → "URL". You can override it freely.

Shopify

Shopify creates a "URL handle" from the product or collection title. You can edit it under "Search engine listing preview" on each page.

Webflow / Framer / Wix

All three auto-generate slugs and let you override them per-page in the page settings panel.

Next.js, Astro, SvelteKit (file-based routing)

The slug is the filename in your pages/ or routes/ directory. /blog/url-slug-guide.tsx becomes /blog/url-slug-guide. Generate the slug first, then create the file.

Notion (as a CMS)

Notion's public page URLs include the page title plus a UUID — not SEO-friendly out of the box. Use a Notion-to-CMS bridge (Super, Feather, Potion) and override slugs per page.

Common slug mistakes that hurt rankings

Date-based slugs

URLs like /2024/03/15/post-name tie the URL to a publish date that becomes stale. Re-publishing a post in 2026 still shows 2024 in the URL. Drop the date from the slug.

Numeric slugs

Default WordPress installs sometimes use /?p=1234. This is the worst possible slug — no information for the user or for Google. Always switch to "Post name" permalinks immediately.

Slugs that don't match the title

If your H1 is "How to Compress Images Without Losing Quality" but your slug is /how-to-compress, you're leaving keyword juice on the table. Slugs should reflect the page's primary keyword phrase.

Changing slugs after publish

Every URL change breaks every existing link. If you must rename a slug after publish, set up a 301 redirect from the old URL to the new one. Otherwise you lose all the SEO equity that page accumulated.

How to generate a slug at scale

For one-off slugs, paste your title into our URL Slug Generator — it handles all 7 rules above automatically. For bulk slug generation (importing 500 product titles, migrating a CMS), use a script:

function slugify(title) {
  return title
    .toLowerCase()
    .normalize('NFD')                     // separate accents from letters
    .replace(/[\u0300-\u036f]/g, '')      // strip the accents
    .replace(/[^a-z0-9\s-]/g, '')         // remove punctuation
    .trim()
    .replace(/\s+/g, '-')                 // spaces to hyphens
    .replace(/-+/g, '-');                 // collapse multiple hyphens
}

That's the same algorithm the in-browser tool uses.

What if my slug is already wrong?

Three options, in order of safety:

1. Leave it alone. An imperfect slug on a ranking page is almost always better than a perfect slug on a brand-new URL. If the page is already getting traffic, don't touch it.
2. Edit and 301 redirect. If the page isn't ranking and the slug is genuinely bad (numeric, date-based, mis-spelled), rename it and add a permanent 301 redirect from the old URL.
3. Edit pre-publish only. The safest time to perfect a slug is before the page is published anywhere. Use the slug generator at draft time, not after launch.

Try it now

Open the URL Slug Generator and paste a title — you'll get a clean, SEO-friendly slug in milliseconds. While you're there, you might also like the Text Case Converter for prepping titles before sluggification, or the URL Encoder/Decoder for query-string parameters.