Easy Primary Category
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About
Allows you to choose primary category for posts and custom post types.
What It Does
Easy Primary Category adds a meta box to the post editor that lets you designate one category as the primary one for any post or custom post type. When WordPress queries a post with multiple categories, the primary designation helps themes, breadcrumbs, and SEO plugins identify the main classification. It is a narrow, single-purpose tool that does one thing and does it without bloat.
Who It's For
This plugin fits publishers who regularly assign two or more categories to a single post, such as news sites, magazines, product review blogs, and directories that rely on structured taxonomies. It is also useful for custom post type workflows where a primary classification matters for URL structure, schema markup, or filtered listings. Smaller single-category blogs will get little value from it.
Who Should Skip It
If you only ever assign one category per post, or if your theme and SEO stack already handle a primary category via another plugin such as Yoast, this is redundant. Sites with minimal taxonomy needs will not benefit from adding another settings layer.
The Bottom Line
Easy Primary Category is a tidy, well-maintained utility that solves a specific taxonomy problem without feature creep. Its tiny install base and lack of public support threads make it a harder plugin to vet socially, but the recent update and clean code footprint reduce risk. It is a sensible pick for multi-category publishers who do not already have primary-category logic in their SEO plugin.
Related Plugins
Pick this when you need to extend the same taxonomy behaviour to WordPress Pages, not just posts.
Choose this if you want broader taxonomy management features such as auto-tagging and term suggestions on top of categorization.
Pick this when your main need is front-end listing of posts by category rather than backend primary-category assignment.
Choose this if you need visitors to filter and search across categories and tags on the front end.
Pick this when you need to assign categories to media attachments, a completely different use case from post-level primary categories.