Slug Generator & Formatter
Transform any text into a clean, search-engine-friendly URL slug. Removes accents, strips special characters, and standardizes hyphenation instantly.
A URL slug generator converts titles to lowercase, strips special characters, and replaces spaces with hyphens. "Hello World!" becomes "hello-world"; Vietnamese diacritics are transliterated before slugging. Slugs are used in every URL on this page — clean, readable permalinks improve both SEO ranking and user trust, since descriptive URLs signal content relevance to search engines.
Understanding URL Slugs & SEO
1. Blog Post URLs (SEO Best Practice)
A clean URL slug is a critical ranking factor. Search engines like Google use the words in your slug to understand page context. Instead of example.com/p=123, a slug like /how-to-bake-cake improves click-through rates and keyword relevance. Our generator automatically strips stop words if needed and normalizes case, giving you an SEO-friendly structure without manual editing.
slug = text.toLowerCase().trim().replace(/[^\w\s-]/g, '').replace(/[\s_-]+/g, '-').replace(/^-+|-+$/g, '') 2. Product Page Slugs in E‑commerce
For online stores, slugs must be both descriptive and concise. A slug like /nike-air-max-90 performs better than /item?id=4402. Our tool removes diacritics (e.g., "café" → "cafe") and eliminates problematic characters, ensuring compatibility across all web servers and CMS platforms like Shopify, WooCommerce, or Magento.
3. File Naming & Digital Asset Management
Consistent naming conventions reduce broken links. When saving images or PDFs, use kebab-case filenames (e.g., 2024-annual-report.pdf). This tool converts any title into a web-safe string, preventing spaces or special characters that break terminal commands and CDN paths.
4. Why Hyphens Beat Underscores in URLs
Google officially treats hyphens as word separators, while underscores are not recognized as separators. That means /best-practices is read as “best practices”, but /best_practices is seen as one word “bestpractices”. Always use hyphens for maximum SEO value — this generator enforces that standard automatically.
Slug Comparison & Transformation
| Original Text | Generated Slug | Key Transformation |
|---|---|---|
| Hello World! | hello-world | lowercase + hyphen |
| Hà Nội, Việt Nam | ha-noi-viet-nam | diacritics removal |
| 50% OFF & Special! | 50-off-special | special chars stripped |
| Multiple spaces & tabs | multiple-spaces-tabs | collapse spaces to hyphens |
| camelCase_example-text | camelcase-example-text | underscores & case normalized |
Frequently Asked Questions
What is 'Hello World!' in a URL slug?
It converts to 'hello-world', removing 1 exclamation mark and lowercase all letters.
How many hyphens are used for 'Product _ Name'?
It results in 'product-name', replacing underscores and multiple spaces with 1 hyphen.
Is my blog title kept private?
Yes, slug generation happens locally. Your titles are never sent to a database.
How does it handle Vietnamese characters like 'ộ'?
It normalizes diacritics, so 'Hà Nội' becomes 'ha-noi' for clean SEO URLs.
Why use hyphens instead of underscores?
Google treats hyphens as word separators, which is 100% better for SEO rankings.
What is the formula for Slug Generator?
The text is lowercased, non-word characters are stripped, and all spaces/underscores are replaced by a single hyphen.