Plugin - Flex Fields
Custom meta boxes for posts, pages, taxonomies, user profiles, and Global Options — used in code with flex_field() and flex_option().
- Fields
- Meta
- Options
What it does
Add reusable field groups with ACF-style location rules, conditional logic, and REST / revision support.
Works across post types, taxonomies, user profiles, and Global Options, including Polylang-aware option keys.
Features
- Reusable field groups and location rules (AND within a group, OR between groups)
- flex_field() and flex_option() for templates and plugins
- REST meta, post revisions, user profiles, and taxonomy fields
- Global Options with JSON export / import
- Polylang-aware option keys and required / unique field names
Get it
Flex Fields is free on WordPress.org under GPLv2 or later. Install from Plugins → Add New, or download the package from https://wordpress.org/plugins/flex-fields/.