Kodo

Slug-Free Permalinks lets you switch selected post types and taxonomies to simple ID based permalink formats.
You can choose between:
<ul>
<li><code>/post/123/</code></li>
<li><code>/post-123/</code></li>
</ul>
The plugin only affects the post types and taxonomies you enable in the settings screen.
Features:
<ul>
<li>Select individual public post types</li>
<li>Select individual public taxonomies</li>
<li>Choose slash or hyphen based ID permalink format</li>
<li>Optionally redirect legacy slug URLs to the current ID based permalink when WordPress can resolve the request</li>
<li>Preserve prefixed permalink bases such as <code>/en/</code> when another plugin adds them</li>
<li>Flush rewrite rules automatically when settings change</li>
</ul>
This plugin is focused on permalink structure only. It does not add content features or front-end UI.
Plugin page (English): https://happas.jp/en/slug-free-permalinks/ 
Plugin page (Japanese): https://happas.jp/slug-free-permalinks/
Development repository: https://github.com/1008k/slug-free-permalinks
This plugin is best suited to new sites, sites still defining their permalink policy, or structured-content use cases where slug management is unnecessary.
If your site already has a large number of published posts and established slug based URLs, review the impact carefully before enabling it. Check existing inbound links, search traffic, social shares, and editorial workflow assumptions.
Known limitations:
<ul>
<li>If a post type slug and taxonomy slug are identical, their ID based rewrite patterns can conflict.</li>
</ul>

Slug-Free Permalinks – Simple ID-Based URLs

Use ID based permalinks for selected post types and taxonomies without managing slugs.

Sergey Biryukov

webvitaly

Ivijan-Stefan Stipic

INFINITUM FORM

karevn

Atrax

Cyr to Lat Enhanced automatically converts Cyrillic, European and Georgian characters in post slugs, term slugs and media file names into Latin characters. 
It helps maintain clean, readable and consistent URLs on WordPress sites that use non-Latin scripts.
The plugin integrates directly with WordPress core sanitization (<code>sanitize_title</code> and <code>sanitize_file_name</code>) and performs transliteration at the moment slugs and filenames are generated. 
It does not modify post content, titles or front-end text. Its scope is strictly limited to URLs and file names.
On activation, existing post and term slugs are converted in the background using safe, batch-based processing via WP-Cron. 
WordPress core APIs are used to preserve permalink integrity and existing redirects.
Transliteration is based on an ISO 9-style mapping table with built-in support for: 
– Russian 
– Belarusian 
– Ukrainian 
– Bulgarian 
– Macedonian 
– Georgian
Locale-specific adjustments are applied automatically, and the transliteration table can be customized using a public filter.
Cyr to Lat Enhanced is intentionally lightweight and focused: 
– no admin interface 
– no settings pages 
– no bidirectional conversion 
– no data collection or tracking
The plugin continues the cyr2lat / cyr3lat lineage and remains compatible with the original approach introduced by Sergey Biryukov.
<h3>Advanced Transliteration</h3>
For advanced transliteration needs such as full content conversion, bidirectional processing, extended language rules and fine-grained control, consider the separate plugin: 
https://wordpress.org/plugins/serbian-transliteration/
That plugin is designed for complex multilingual setups and broader language processing beyond slugs and file names.
<h3>Adoption Notice</h3>
This plugin represents the continued maintenance of the original “Cyr to Lat Enhanced” project from the cyr3lat lineage.
The project has been revived to ensure long-term stability, modern WordPress compatibility and responsible maintenance, while preserving the original behavior and purpose.
<h3>Credits</h3>
Original upstream concept: Rus-To-Lat by Anton Skorobogatov 
cyr2lat / cyr3lat lineage contributors: karevn, Atrax, Sergey Biryukov, webvitaly
Maintainer: Ivijan Stefan Stipic (INFINITUM FORM)
<h3>Legal Notice</h3>
This plugin is licensed under the GPLv2 or later license.
All new contributions are released under the same license.

Cyr to Lat Enhanced

Ин дид, зыс плагин конверт май линкс фром кириллик ту латин вэри фаст, изи, энд визаут эни ишьюс, сенк ю!

Воркс лайк э чарм!


Strongly recommend to check all further versions from security perspective


Plugin was overtaken, switching to alternatives

Converts Cyrillic, European and Georgian characters in post, term slugs and media file names into Latin characters.

Slug-Free Permalinks – Simple ID-Based URLs vs Cyr to Lat Enhanced