⚡ Quick Answer
A URL slug is the part of a URL that identifies a specific page. Example: in 'https://365tool.net/tools/age-calculator/', the slug is 'age-calculator'. Good slugs are: all lowercase, words separated by hyphens (not spaces or underscores), contain the main keyword, are as short as possible, and contain no special characters or accents.
📂 SEO Tools

🔗 URL Slug Generator

Convert any text into a clean, SEO-friendly URL slug instantly. Removes special characters, converts spaces to hyphens, and makes everything lowercase. Essential for bloggers and developers.

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✅ Trusted Tool
The 365tool.net Slug Generator creates SEO-friendly URL slugs following Google's URL best practices. Free for bloggers, developers, and content creators worldwide. No sign-up needed.

🤔 How Does This Work?

The Slug Generator transforms text into valid URL slugs:

  • Convert all characters to lowercase
  • Replace accented characters with ASCII equivalents (é→e, ñ→n)
  • Remove special characters (!@#$%^&*.,?)
  • Replace spaces and underscores with hyphens
  • Optionally remove stop words (the, a, an, is, are, of, in, to...)
  • Remove consecutive hyphens and leading/trailing hyphens

❓ Frequently Asked Questions

What makes a good URL slug?
Lowercase only, hyphens between words (not underscores or spaces), contains main keyword, as short as possible while descriptive, no special characters, no numbers unless meaningful, no stop words (the, a, is, etc). Good: /how-to-calculate-bmi. Bad: /How_To_Calculate_Your_BMI_Quickly_In_2024!
Should I use hyphens or underscores in URLs?
Always hyphens. Google treats hyphens as word separators — 'age-calculator' is understood as two separate words 'age' and 'calculator'. Underscores are treated as connectors — 'age_calculator' is treated as one word 'agecalculator'. Hyphens are also more readable for human users.
How long should a URL slug be?
As short as possible while still being descriptive and keyword-rich. Aim for 3-5 meaningful words. Under 75 characters total. Shorter URLs are easier to share, remember, and type. Remove stop words (the, a, an, is, are) unless they are essential to the meaning. Keep the most important keywords.
Does URL structure affect SEO?
Yes, moderately. Keywords in URL are a confirmed ranking factor (though weak). Clean, descriptive URLs improve click-through rate from search results. Logical URL structure helps Google understand your site hierarchy. However, URL structure is much less important than content quality, backlinks, and page experience.
Can I change my URL slug after publishing?
You can, but you should always set up a 301 redirect from the old URL to the new one. Without a redirect, existing links (backlinks, bookmarks, shared links) will return a 404 error. WordPress, most CMS platforms, and web servers support 301 redirects. Changing URLs risks losing some SEO value even with proper redirects.
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❓ FAQ
What makes a good URL slug?
Lowercase only, hyphens between words (not underscores or spaces), contains main keyword, as short as possible while descriptive, no special characters, no numbers unless meaningful, no stop words (the, a, is, etc). Good: /how-to-calculate-bmi. Bad: /How_To_Calculate_Your_BMI_Quickly_In_2024!
Should I use hyphens or underscores in URLs?
Always hyphens. Google treats hyphens as word separators — 'age-calculator' is understood as two separate words 'age' and 'calculator'. Underscores are treated as connectors — 'age_calculator' is treated as one word 'agecalculator'. Hyphens are also more readable for human users.
How long should a URL slug be?
As short as possible while still being descriptive and keyword-rich. Aim for 3-5 meaningful words. Under 75 characters total. Shorter URLs are easier to share, remember, and type. Remove stop words (the, a, an, is, are) unless they are essential to the meaning. Keep the most important keywords.
Does URL structure affect SEO?
Yes, moderately. Keywords in URL are a confirmed ranking factor (though weak). Clean, descriptive URLs improve click-through rate from search results. Logical URL structure helps Google understand your site hierarchy. However, URL structure is much less important than content quality, backlinks, and page experience.
Can I change my URL slug after publishing?
You can, but you should always set up a 301 redirect from the old URL to the new one. Without a redirect, existing links (backlinks, bookmarks, shared links) will return a 404 error. WordPress, most CMS platforms, and web servers support 301 redirects. Changing URLs risks losing some SEO value even with proper redirects.