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Sublanguage
Sublanguage is a lightweight multilanguage plugin for wordpress.
The facts
- Rating
- 4.6★ from 31
- Active installs
- 700+
- Price
- Free
- Last updated
- 8 Dec 2025
- Added
- Jul 2015
- Requires WP
- 4.5
- Tested up to
- WP 6.6.7
- Downloads
- 28,495
Our analysis
AI-assistedSublanguage is a multilingual plugin for WordPress that allows you to manage translations without duplicating content. It stores translation data in post_meta instead of using additional database tables and does not add markup to content, which can be beneficial for SEO. The plugin provides a user interface for translating various elements, including posts, terms, and navigation menus.
This plugin is suitable for users who need to create a multilingual site without the complexities of traditional translation plugins. It supports Gutenberg, allows for URL rewriting, and is extendable, making it a flexible option for multilingual content management.
Best for: This plugin suits users looking to create a multilingual WordPress site without the need for complex setups.
What it does well
- ✓No duplicated content
- ✓Translation data stored in post_meta
- ✓No additional markup added to content
- ✓Supports Gutenberg
- ✓Allows URL rewriting for permalinks
Where it falls short
- •Some features were removed due to a security vulnerability
- •Limited information on support and updates
Verdict
Sublanguage offers a straightforward approach to multilingual content management, though its recent changes may affect some users. It is a practical choice for those prioritising simplicity and SEO.
From the developer
maximeschoeni's own description of Sublanguage, lightly tidied.
Sublanguage is a multilanguage plugin for wordpress.
Concept
- no duplicated content (untranslated or untranslatable data inherits main language value)
- no additional database table (translation data is stored in post_meta)
- no markup added into content (unlike q-translate)
- no cookies (language is defined solely by URLs, better for SEO)
Features
- [NEW] support for Gutenberg (beta feature)
- translation UI for posts content, title, permalink, excerpt and meta (for posts, pages and custom posts)
- translation UI for terms name, slug and description
- translation UI for attachments title, caption, description, alt and meta
- translation UI for nav menus
- translate localized text
- translate login, password change, etc.
- translatability: define which content is translatable or not
- URL rewrite: translate posts and terms permalinks and child pages path
- support revisions
- support multisite
- extendable
Notes
In version 2.9, a security vulnerability (“The plugin settings can be executed by lower privilleged (sic) user”) was reported for Sublanguage. In order to ease the fixing, we chose to permanently remove a few under-used features concerned by this exploit in v 2.10. Please write in the forum if you disagree with this choice.
- remove automatic upgrade from version 1.x (version 2.0 is now about 10 years old).
- remove a quick edit button in classic editor that was available width Tinymce Advanced plugin.
- remove the possibility to translate options (Options translated so far will still works as usual in the front-end, you just no longer can edit translations in the back-end).
Documentation
Plugin documentation is available on github
Extensions
Thanks
- uggur for Turkish translation
Tagged as
purpose
Multilingual & Translation
feature
Speed Optimised
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