`slugify` Universal Filter

Uses the @sindresorhus/slugify npm package to convert a string into a URL slug. Typically used with permalinks. Eleventy 3.0 memoizes this filter.

Filename slugify.md

---
title: "My Title"
permalink: "/{{ title | slugify }}/"
---
Outputs to `/my-title/`.

INFO:

In versions prior to 1.0.0, the slug Universal Filter was used. To maintain backwards compatibility moving forward, slug is still included and supported but slugify is now recommended as best practice—it has better default behavior for URLs with special characters.

WARNING:

slugify currently ignores characters for Japanese, Chinese, and others. If you need to slugify these characters, add your own universal filter with an alternative library like limax or transliteration. (More context at Issue #2537)

Changing `slug` to `slugify`

If you’re trying to migrate the content in a pre-1.0 project from using the slug filter to the (new in v1.0) slugify filter (note: this is optional—you can leave them as-is!), you must take extra care to make sure that any existing URLs don’t change.

The Upgrade Helper plugin will compare the slug and slugify versions of your URLs to see if there are any that require extra attention (thank you to Peter deHaan for the assist here!).

slugify Universal Filter

Changing slug to slugify

Other pages in Filters:

`slugify` Universal Filter

Changing `slug` to `slugify`