Slugify Online

Slugify is a simple tool for converting text into a readable, safe, and SEO-friendly URL address. It helps you create a search engine friendly URL slug without unnecessary characters.

What is a slug?

Slug is the final part of a URL that identifies a specific subpage within a domain. It appears after the domain name and any subdirectories.

Example:

example.com/blog/what-is-a-slug

In the above address, the what-is-a-slug part is the slug. Most often, it’s created based on the article title, product name, or a keyword phrase.

A good slug should be:

• short and readable,
• based on the main keyword phrase,
• free from unnecessary words and special characters,
• written in lowercase,
• separated by hyphens instead of spaces.

The slug affects link readability, user experience, and SEO optimization. It helps search engines understand the topic of the page even before fully analyzing it.

What does the Slugify tool do?

Slugify automatically converts any text into an SEO-friendly slug. It transforms an article title, product name, or keyword phrase into a valid URL slug. It removes special characters and replaces spaces with hyphens following SEO best practices.

The tool allows you to create friendly URLs that are easy for both users and search engine bots to read. It supports transliteration of diacritical marks, so these characters are converted to their ASCII equivalents.

Slugify works based on JavaScript. This means you get an instant preview of the result without reloading the page. Enter your text and instantly get a ready-to-copy slug.

• Convert text to a URL slug.
• Remove special characters and extra spaces.
• Default (but optional) lowercase conversion.
• Support for multiple languages.
• Quick and easy copying of the result.

How does the Slugify tool help SEO specialists and website owners?

A well-crafted URL improves the readability of a URL structure for search engine crawlers. This is important for indexing and the CTR in search results. The Slugify tool from DiagnoSEO simplifies this process down to a few seconds.

SEO specialists can prepare proper subpage addresses faster. E-commerce owners generate consistent slugs for hundreds of products. This reduces the risk of errors in the URL structure.

For large websites, the time savings are significant. Creating slugs manually can take several minutes per page. For 500 subpages, that's many hours of work. Automation reduces this to just a few minutes total.

Slugify supports on-page SEO optimization. It makes it easier to implement keywords in the address, helps build a logical information architecture, and improves the user experience.

• Faster URL creation for new content.
• Better control over link structure.
• Consistency of slugs throughout the website.
• Lower risk of typos.

Typical uses for the Slugify tool

Slugify works in many content marketing scenarios. You can use it when publishing a blog, landing page, or category description.

1. Create slugs for blog articles based on the title.
2. Generate URLs for categories and products in online stores.
3. Build friendly links for marketing campaigns.
4. Standardize addresses in CMS systems.
5. Optimize existing URLs for SEO.

The tool is also helpful during site migration. It makes it easier to convert titles into new, standardized slugs (paths). Thanks to multi-language support, the tool is useful for international websites.

Slugify tool comparison to other tools

Functionality	DiagnoSEO	Other tools
Convert text to URL slug	✅	✅
Support for all popular languages	✅	Depends on the tool
Instant preview without page reload	✅	❌
Remove special characters and diacritics	✅	❌
Optional stop words removal	✅	❌
Easy copying of the result	✅	❌

SEO tips and best practices

Create short and specific slugs—ideally up to 60 characters. Avoid unnecessary words and stop words if they’re not needed.

Use keywords in a natural way. Don’t stuff phrases. Keep it readable for users.

Use lowercase letters. Avoid underscores. Hyphens are the preferred separator for SEO.

Maintain a consistent structure throughout the website. This supports indexing and data analysis in analytics tools.

Recommended slug length and number of subdirectories

For SEO, short, descriptive slugs and a shallow URL structure work best. The address should be readable by users and clearly indicate the purpose of the page.

• 3–5 words in the slug (most often the optimal range)
• 30–60 characters (recommended length)
• ~75 characters max (practical upper limit)
• 0–2 subdirectories as a best practice
• max. 3 levels only if your website structure requires it

Language version in directory (e.g. /en/):

If you use a language directory, e.g. example.com/en/, it counts as the first level of the structure. This means you can optimally add just 1–2 more levels, e.g.:

example.com/en/category/slug

Technically, you can add 3 more subdirectories (so 4 levels with /en/), but from an SEO and UX perspective it’s better to avoid this. Too deep a structure:

• makes the URL longer,
• decreases readability,
• makes internal linking harder,
• dilutes the meaning of the main keyword.

Best practice with language versions: /language/category/slug – simple, logical, and shallow.

Most common mistakes

• URLs that are too long.
• Repeating the same words in the slug.
• Lack of transliteration for special characters.
• Changing a slug without setting up a 301 redirect.
• Using dates in the URL when not necessary.

Such errors can result in traffic loss. They can also reduce the readability of the link in search results.

How to use the Slugify tool

1. Select a language if available.
2. Type or paste your text into the input field.
3. Copy the generated slug from the output field.
4. Paste it into your CMS as the URL address.

The process takes just a few seconds. No installation or configuration required.

Case study

Suppose an online store publishes 200 new products per month for a foreign market. Each product requires a correct URL address. Manually creating slugs in a foreign language takes an average of 1 minute each.

That’s over 3 hours of work every month. With Slugify, the process is reduced to just a few minutes. The team can focus on optimizing content and keyword research.

As a result, URL structure consistency increases and technical errors decrease. In the long run, it boosts search engine visibility.

FAQ

• What is a slug in a URL?

  A slug is the last part of a URL identifying a specific subpage. It should be short, readable, and include keywords.

• Which languages are supported by the Slugify tool?

  The tool supports the following languages: Arabic, Bulgarian, Simplified Chinese, Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Latvian, Lithuanian, Norwegian Bokmål, Persian, Polish, Portuguese, Romanian, Russian, Slovak, Slovenian, Spanish, Swedish, Thai, Turkish, Ukrainian, and Vietnamese. If your language is missing from the list, let us know and we’ll add support for it.

• Is it important to use keywords in the slug?

  Yes. Including the main phrase in the URL address supports SEO and improves how users understand the page topic.

• Does changing a slug affect SEO?

  Yes. Changing an address without a 301 redirect can result in traffic loss and a drop in search rankings.

• Is the tool free and does it work without installation?

  Yes. Slugify is a free tool, works in your browser, and requires no installation or additional configuration.