German Slugs properly transliterates umlauts and the letter ß appearing in titles for slugs (i.e. for pretty permalinks).
As of April 2026, German Slugs is a WordPress url plugin with 900 active installations and a 5/5 rating from 5 reviews. It has been downloaded 12K+ times in total. Requires WordPress 3.1+ and PHP false+. Available on WordPress.org since 2010. Last updated 4 years ago — may have compatibility concerns. Top alternative: Custom Post Type Permalinks.
NOTE: recent WordPress versions already properly transliterate umlauts if the
site language is German. In that case, German Slugs is no longer needed.
While creating a post or page, WordPress automatically suggests a permalink. If
your permalink structure contains the %postname% tag, then the title of your
post or page will be used, simplified by conversion to lowercase, replacing
spaces with hyphens, removing certain punctuation characters and removing
diacritics from latin letters.
Thus, by default, ä is replaced with a, ö with o, ü with u and ß with s (similar
for capital letters). For German, the conventional transliteration is ä to ae, ö
to oe, ü to ue and ß to ss (sometimes sz in Austria, this is not yet supported).
This plugin makes your WordPress apply the conventional translitera…
| WordPress | 3.1+ requiredTested up to 4.0.38 |
| PHP | false+ required |
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