URL Slug Generator
/generate/Clean Permalinks · Stop-Words Removal · Accent Stripping · Bulk Batch Mode
Slug Formatting Options
What is a URL Slug and Why Do Clean Permalinks Matter for SEO?
A URL slug is the human-readable, hyphen-delimited portion of a web address that identifies a specific article, product, or documentation page (for example, in example.com/blog/url-slug-generator, the slug is url-slug-generator). Search engine algorithms like Google, Bing, and DuckDuckGo utilize words inside URLs as critical ranking and context signals when categorizing content.
Poorly formatted URLs with uppercase letters, raw query parameters, underscores, or encoded special characters (like %20 or %C3%A9) degrade search crawlability, break on social media platforms, and confuse users. Converting titles into standardized slugs requires Unicode normalization (NFD/NFC decomposition) to convert accented characters (like é to e), stripping punctuation symbols, and removing common grammatical filler words (stop words such as the, is, and, with).
Whether you are launching a technical blog, structuring an e-commerce catalog, or migrating WordPress posts to Next.js or Astro, having predictable permalinks is crucial. LocalDevTools executes all slug sanitization, regex delimiter substitution, and batch CSV processing 100% inside your local browser memory, keeping unpublished article headlines and confidential internal paths completely private.
How to Use This URL Slug Generator
- Enter your text or title: Type or paste any headline into the input field (e.g. "10 Best JavaScript Frameworks for 2026!").
- Customize slug settings: Select your preferred delimiter (Hyphen
-, Underscore_, or Slash/) and toggle Remove Stop Words to automatically strip filler words. - Test batch conversion: Switch to the Bulk / Batch Mode tab to paste multiple article titles simultaneously and review formatted slugs in a comparison table.
- Copy or export: Click Copy Slug for instant clipboard transfer, or click Export CSV in batch mode to download a spreadsheet with original titles and generated permalinks.
Frequently Asked Questions (FAQ)
Why should I use hyphens instead of underscores in URLs? ↓
Google officially recommends using hyphens (-) rather than underscores (_) in URL slugs. Search crawlers treat hyphens as word separators (e.g., "url-slug" is indexed as "url" and "slug"), whereas underscores can cause words to be joined into a single continuous token ("url_slug").
What are stop words and why should they be filtered? ↓
Stop words are common grammatical connector words (like a, the, in, on, at, of, with) that carry little search intent. Removing them produces concise, readable permalinks that focus search engines on high-value primary keywords.
How are accented characters and non-English letters handled? ↓
The generator applies Unicode NFD normalization and strips diacritical marks (e.g., Café becomes cafe, München becomes munchen), preventing awkward percent-encoded characters in URL strings.
Is my text or batch list uploaded anywhere? ↓
No. LocalDevTools converts all text locally inside your web browser. Neither your titles, draft headlines, nor exported CSV files are ever stored on or transmitted to external servers.