What Is a URL Slug?
A slug is the part of a URL that comes after your domain name and identifies a specific page for example, in yoursite.com/best-coffee-shops-lahore, the slug is best-coffee-shops-lahore. It’s built from your page title, but stripped of spaces, punctuation, and capital letters so it works cleanly inside a web address.
On many CMS platforms, including WordPress, Shopify, Webflow, and Wix, the slug is what shows up in the “Permalink” field under your post title. If you never touch that field, WordPress fills it in for you automatically but its auto-generated version isn’t always the one you want. It might keep every stop word from your headline, cut off mid-word if the title is long, or turn a non-English character into an ugly percent-encoded string like %E8. Writing the slug yourself, on purpose, avoids all of that.
Writing slugs by hand means manually lowercasing every word, swapping spaces for hyphens, and deleting stray punctuation easy to get wrong when you’re publishing several pages a day. This tool does that conversion instantly: paste your title, get a ready-to-use slug.
Why URL Slugs Matter for SEO
Cleaner URLs Improve Click-Through Rate
A URL like /site/page?id=4471&cat=2 tells a reader nothing. A URL like /how-to-brew-pour-over-coffee tells them exactly what they’re about to click on before they even read the title tag. When someone shares your link on WhatsApp or Twitter, the slug itself is often the only readable part of the URL that shows up.
Search Engines Read Slugs as Ranking Signals
Google uses words in the slug as one of many signals to understand what a page is about. A slug packed with the same words as your title reinforces relevance; a slug full of random IDs, session tokens, or unrelated words does nothing for you. This doesn’t mean stuffing keywords into the slug it means keeping the slug an accurate, trimmed-down version of your title.
A Messy Slug Can Undercut Otherwise Good Content
It’s common to spend real effort on a headline and the article underneath it, then leave the URL as whatever the CMS generated by default often the entire title, including “a,” “the,” “how to,” and every stop word, strung together with no editing at all. That’s a wasted opportunity: the slug is free real estate for reinforcing what the page is about, and it costs nothing to clean it up before hitting publish.
Common Problems People Run Into When Creating Slugs by Hand
- Inconsistent casing across a site some pages end up as /My-Post-Title, others as /my-post-title, which can create duplicate-content issues on servers that treat the two as different URLs.
- Forgetting to strip punctuation question marks, colons, and apostrophes from a title get left in, or turned into broken percent-encoded characters in the address bar.
- Slugs that run too long a full 12-word headline copied straight into the permalink field, which some themes or CMS platforms silently truncate mid-word.
- Mixing separators inconsistently some posts on the same site use hyphens, others use underscores or spaces, with no consistent rule.
- Batch work during a migration moving a hundred posts from one platform to another (or importing a CSV of new product titles) and needing all of them slugified in one pass, not one at a time.
- Restructuring a site’s URLs renaming a whole category or product line and needing new slugs for every title at once, quickly, without opening each post individually.
How to Use This Slug Generator
Single Mode For One Title at a Time
Type or paste your title into the input field. The slug appears immediately below as you type there’s no separate “submit” step. Once you’re happy with it, hit Copy to send it straight to your clipboard, or press Reset to clear the field and start over. Every slug you generate is also saved to a Recent Slugs list on the right, so if you generate five titles in a row and need the second one again, you don’t have to retype it just click it from the list.
Bulk Mode For Publishing or Migrating Many Pages at Once
If you’re publishing a batch of articles, products, or category pages at once, switch to the Bulk tab. Paste your titles in, one per line, and hit Generate All every line turns into its own slug, listed with an individual Copy button next to each one. Need all of them at once for a spreadsheet or CMS import? Copy All puts every slug on the clipboard together, each on its own line, ready to paste into a column.
Setting a Separator
Choose hyphen or underscore from the dropdown before generating. This applies to both single and bulk mode, so you don’t have to reformat results afterward if your site has a fixed convention.
Setting a Max Length
Enter a number in the Max Length field to cap how long a generated slug can be. Useful if you’re standardizing slug length across an entire site, or if your CMS has its own character limit on permalinks.
Hyphens vs Underscores: Which Separator Should You Use?
The tool gives you two separator options hyphen (-) and underscore (_) and for search engine visibility, they are not equivalent.
Google generally treats hyphens as word separators: content-writing-tips is read as three separate words content, writing, tips. An underscore is read as a joining character instead: content_writing_tips can be interpreted as one continuous string rather than three distinct words, which weakens how clearly the page’s topic comes through.
Hyphen is set as the default here for that reason, and it’s also what WordPress uses by default in its own auto-generated permalinks. It’s the right choice for any page you want indexed and searched. The underscore option exists for cases outside SEO internal filenames, tracking codes, or systems that specifically expect underscores not for public-facing page URLs.
Best Practices for Writing SEO-Friendly Slugs
Keep It Short and Descriptive
A slug doesn’t need to repeat your full headline. /instant-pot-chicken-curry-recipe communicates the same thing as a 12-word title, at a fraction of the length. Use the Max Length field in this tool to cap slugs at a set character count.
Avoid Stop Words Like “and”, “the”, “of”
Words like and, the, of, and a add length without adding meaning to a URL. /guide-to-the-best-cafes-in-karachi works just as well as /best-cafes-karachi. Trim these manually before generating, since they often add little value to a URL and just eat into your character budget.
Use Lowercase Letters Only
Mixed-case URLs create duplicate-content risk /My-Article and /my-article can be treated as two different pages on servers that are case-sensitive. This tool lowercases everything automatically, so every slug it produces is safe by default.
Leave Out Dates and Numbers That Will Go Stale
A slug like /best-laptops-2023 keeps that year attached to the URL forever, even after you update the article for 2026. Unless the date is genuinely part of what the page is about (an event, a specific edition), leave it out of the slug and put it in the title instead, where it’s easy to update without touching the URL.
Don’t Change a Slug After the Page Is Already Live
Once a page has been indexed and has earned backlinks or shares, changing its slug means the old URL stops working unless you set up a redirect and any SEO value the old URL had built up doesn’t automatically transfer. Get the slug right before you hit publish, rather than fixing it afterward.
Who This Tool Is For
Bloggers and Content Writers
Anyone publishing posts one at a time and wanting a clean, consistent permalink without manually retyping and reformatting every title.
E-commerce Store Owners
Product titles are often long and full of brand names, sizes, or model numbers a slug generator turns “Nike Air Max 270 – Men’s Running Shoes, Size 10, Black/White” into a short, usable /nike-air-max-270-mens-running-shoes without manual editing.
SEO Agencies and Content Teams
Teams publishing on behalf of multiple clients need consistent slug formatting across every site they manage Bulk mode handles a full content calendar’s worth of titles in one pass instead of one page at a time.
Developers and Site Migrators
Moving content between platforms, importing a CSV of new pages, or restructuring an entire site’s URLs all involve converting many titles into slugs at once exactly what Bulk mode and Copy All are built for.
Frequently Asked Questions
- Is this slug generator free to use?
Yes, there’s no sign-up or payment required for either the single or bulk mode. - Can I generate slugs for multiple titles at once?
Yes use the Bulk tab, paste one title per line, and click Generate All. - What’s the ideal length for a URL slug?
There’s no fixed rule, but most SEO guidance suggests keeping slugs under 60 characters. Set that as your Max Length here if you want it enforced automatically. - Should I use hyphens or underscores?
Hyphens, for any URL meant to be found through search. Underscores are only useful for non-public, internal naming conventions. - Does this work for WordPress permalinks?
Yes the slugs this generates match the format WordPress expects in its Permalink field, so you can paste the result directly there. - Can I use this for product URLs on an online store?
Yes it works the same way for product titles as it does for blog post titles or page titles. - Can two different pages have the same slug?
No slugs need to be unique within a site, since the URL is how a server locates a specific page. If you generate a slug that matches one you’ve already used, adjust it slightly (add a word or a number) before publishing. - What happens if I change a slug after the page is already published?
The old URL will stop working unless you set up a redirect to the new one, and any search ranking or shared links pointing to the old URL may be affected. It’s best to finalize the slug before the page goes live. - Should I include dates in my slug?
Generally no, unless the date is a permanent part of what the page is about. A dated slug becomes outdated the moment you update the content.