Clean SEO URL Slug Generator & Permalink Optimizer
Convert article titles and headlines into clean, lowercase, URL-friendly slugs with stop-word filtering.
Interactive Clean SEO Slug Generator
Generate clean, lowercase, hyphenated URL permalinks with intelligent stop-word filtering.
What this tool does and who it is for
Enter a headline or product name and get a clean URL slug: lowercase, with punctuation stripped and words joined by a hyphen or underscore. Optional switches drop common stop words and numbers. It also shows the slug length and a preview of how the address will look.
Accented letters are flattened to their plain versions, so a title with an accented e becomes a plain e. Everything that is not a letter, digit or space is turned into a word break, which means an apostrophe in don't becomes a separator and you get don-t.
Slugs are the part of a web address after the domain, and a short, readable one helps people understand a link before clicking it.
Official Formula / Technical Standard
Real-World Worked Scenario
Input: 'The 10 Best Free AI SaaS Tools for Startups in 2026!' -> SEO Slug: '10-best-free-ai-saas-tools-startups-2026'.
When people use it
Publishing a blog post in WordPress
Paste the headline, drop stop words, and shorten the result by hand. You are usually better off with something like best-crm-small-business than a copy of the whole title.
Naming product or category pages
Use the slug for an ecommerce category or product. Strip numbers if the number is a year or a quantity you may change later.
Setting up file or folder names
A hyphenated lowercase name works well for images, PDFs and downloadable files that will be linked from a page.
Creating consistent URLs in a team
Having everyone run titles through the same settings avoids a mix of capitalizations, underscores and punctuation across the site.
Notes for US users
- Search engines treat hyphens as word separators, which is why hyphens are generally the safer choice. Google's own guidance recommends them over underscores.
- Avoid putting dates in slugs unless the page is genuinely tied to a date, because you will have to redirect or live with an old-looking address later.
- Once a page is live and linked, changing its slug breaks existing links unless you add a 301 redirect. Settle on the slug before publishing.
Limits and what to double-check
- •The stop-word list is short and English only (about nineteen words such as a, the, of, for). It cannot decide which words matter to your topic, so trim by hand.
- •Non-Latin letters such as Cyrillic or Chinese characters are removed, so a title in another script may produce an empty slug.
- •There is no length cap and no duplicate check. The tool does not know whether the slug already exists on your site.
Expert Best Practices & Common Pitfalls
Recommended Best Practices
- •Use hyphens (-) rather than underscores (_) to separate words, as Google officially treats hyphens as word separators.
- •Keep slugs concise (typically 3 to 5 key descriptive words) to avoid truncation in mobile search results.
- •Always use lowercase letters to avoid URL duplicate content issues on case-sensitive web servers.
Common Mistakes to Avoid
- •Including dates or years in the URL slug if the content is meant to be updated annually (e.g. use /best-crm-software/ rather than /best-crm-software-2026/).
- •Changing an existing published slug without setting up a permanent 301 redirect from the old URL.
- •Leaving uppercase characters, spaces, or percent-encoded symbols in permalinks.
Features & Security Architecture
- 100% Client-Side: Zero server uploads ensure complete privacy and data confidentiality
- Fast Results: Processing happens on your own device, so there is no upload or server queue to wait for
- No Sign-Up Required: Completely free to use with no daily usage caps or account requirements
- Works on All Devices: Fully responsive across desktop, tablet, and mobile browsers
Frequently Asked Questions
Why should I use hyphens instead of underscores in URLs?▼
Google Search explicitly recommends hyphens (-) over underscores (_). Google treats a hyphen as a word separator (e.g. 'auto-loan' is indexed as 'auto loan'), whereas an underscore connects words into a single term ('auto_loan').
Should I remove stop words like 'the' and 'for' from my slugs?▼
In most cases, removing stop words keeps your URL shorter and easier to read. However, keep stop words if removing them changes the meaning of the title.
How long should a URL slug be?▼
There is no official limit, but shorter slugs read better and are easier to share. Aim for three to six meaningful words. The length counter on this page shows characters, so you can trim a long headline down to its main keywords before you paste it into your CMS.
Why did my apostrophe turn into a hyphen?▼
Every character that is not a letter or number becomes a word break, so don't turns into don-t. To avoid it, delete the apostrophe in your title first, writing dont, or rephrase the headline. It is a simplification of the tool, not a rule of URLs.
Should I include the year in a slug?▼
Only if the page is truly about that year, like an annual report. For evergreen guides, leave it out, so you can update the page next year without changing the address or setting up a redirect. The Strip Numbers option removes standalone numbers.
Does the slug generator check if a slug is taken?▼
No. It only formats text and has no connection to your site. Your CMS, such as WordPress, will usually add a number to avoid duplicates, but check your permalink in the editor before publishing. If you are managing many pages, keep a simple spreadsheet of existing slugs so you can spot a clash before you publish rather than after.
Can I use capital letters in a slug?▼
You can, but lowercase is the norm. Some servers treat uppercase and lowercase paths as different pages, which can create duplicate URLs. This generator always outputs lowercase to keep things consistent. If your site already has mixed-case URLs, set up redirects to the lowercase versions rather than changing them without a plan.