URL Slug Validator

Paste any URL slug and instantly see whether it follows best practices, with actionable fix suggestions.

Use the URL Slug Validator

Enter a Slug

Type or paste a slug — results update instantly.

Try an example

Enter a slug on the left to see results.

Summary

The URL Slug Validator checks any slug string against a comprehensive set of best-practice rules: lowercase letters only, words separated by hyphens, no special characters, no leading or trailing hyphens, and reasonable length. It highlights every violation and outputs a corrected slug you can copy immediately.

How it works

  1. Type or paste your slug into the input field.
  2. The tool evaluates it against 10+ rules in real time.
  3. Each failing rule is listed with a plain-English explanation.
  4. A auto-corrected slug is generated and displayed below the results.
  5. Copy the corrected slug with one click.

Use cases

  • Validate slugs before publishing a blog post or CMS page.
  • Check auto-generated slugs from third-party plugins.
  • Ensure SEO-safe URLs across a content migration.
  • Teach junior developers what makes a good slug.
  • Audit existing URLs for slug hygiene issues.
  • Generate a corrected slug from a messy title string.

Frequently Asked Questions

Last updated: 2026-05-23 · Reviewed by Nham Vu