Description
Plinth Custom Fields lets you build custom field groups and attach them to post types, page templates, specific pages, or post statuses — without depending on any other plugin.
Key features:
- 12 field types: Text, Textarea, Number, Email, URL, Image, Select, Radio, Checkbox, True/False, WYSIWYG Editor, and Repeater
- Repeater fields with drag-to-reorder rows and nested sub-fields
- Location rules with AND/OR logic — show fields only where you need them
- Import and export field groups as JSON, so you can move configurations between sites
- Template functions for theme developers:
plinth_get_field(),plinth_the_field(),plinth_get_image(),plinth_get_rows(),plinth_have_rows(),plinth_the_row(),plinth_get_sub_field(),plinth_the_sub_field() - All data stored in standard
wp_postmeta, prefixed with_plinth_so it never collides with other plugins - Zero external dependencies — works entirely on top of WordPress core
For Theme Developers
Once a field group is created and assigned to a location, pull the values into any template file:
<?php
$title = plinth_get_field( 'hero_title' );
$image = plinth_get_image( 'hero_image', null, 'large' );
if ( plinth_have_rows( 'team_members' ) ) :
while ( plinth_rows_remaining() ) : plinth_the_row(); ?>
<h3><?php plinth_the_sub_field( 'name' ); ?></h3>
<?php endwhile;
endif;
?>
Screenshots



Installation
- Upload the
plinth-custom-fieldsfolder to the/wp-content/plugins/directory, or install directly through the WordPress Plugins screen. - Activate the plugin through the ‘Plugins’ screen in WordPress.
- Go to Plinth Custom Fields Add New to create your first field group.
- Set Location Rules to choose where the field group should appear.
- Edit a matching post or page to see your custom fields in a meta box.
FAQ
-
Does this require any other plugin?
-
No. Plinth Custom Fields is fully self-contained and has zero dependencies on any other plugin.
-
Can I move field groups between sites?
-
Yes. Go to Plinth Custom Fields Import / Export to export a JSON file of your field groups, then import that same file on another site.
-
How do repeater fields store their data?
-
Repeater rows are stored as individual
wp_postmetarows (a row-count meta key plus one meta key per cell), which keeps the data simple to query directly from the database if needed. -
Will this conflict with my theme’s existing custom fields?
-
All meta keys are prefixed with
_plinth_and the leading underscore keeps them out of WordPress’s native Custom Fields panel, minimizing collision risk with other plugins or theme code.
Reviews
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Contributors & Developers
“Plinth Custom Fields” is open source software. The following people have contributed to this plugin.
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Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
Changelog
1.0.0
- Initial release.
- 12 field types including Repeater with drag-sort and nested sub-fields.
- Location rules engine with AND/OR logic.
- JSON import/export for field groups.
- Template functions for theme developers.
