Category Filter Block
Just a simple category filter block with the Interactivity API support.
The facts
- Rating
- 5★ from 1
- Active installs
- 100+
- Price
- Free
- Last updated
- 22 Aug 2026
- Added
- Apr 2025
- Requires WP
- 6.5
- Tested up to
- WP 7.1
- Requires PHP
- 7.3
- Downloads
- 2,265
Our analysis
AI-assistedThe Category Filter Block is a WordPress plugin that allows users to filter posts by category within the standard Query Loop block, utilising AJAX for a seamless experience without page refresh. You can display the filter as links or a dropdown, and it supports features like showing post counts for each category and customisable styles.
This plugin is suitable for users who want to enhance their site's navigation by allowing visitors to filter content easily. It is particularly useful for sites with a large number of posts across various categories.
Best for: This plugin suits WordPress site owners looking to improve content filtering by categories.
What it does well
- ✓Filters posts by category without page refresh
- ✓Supports display as links or dropdown
- ✓Shows post count for each category
- ✓Customisable block styles
- ✓Free to use from the WordPress.org directory
Where it falls short
- •Limited to filtering by categories only in the free version
- •Pro version required for custom taxonomy support
Verdict
The Category Filter Block offers useful functionality for categorising posts, but its capabilities are limited without the Pro version.
From the developer
Misha Rudrastyh's own description of Category Filter Block, lightly tidied.
The category filter block allows you to filter posts displayed with the standard Query Loop block by category, without a page refresh. The Interactivity API is fully supported.
Features
✅ The category filter can be displayed as links or as a select dropdown field
✅ You can display a post count number near each category
✅ Custom All Categories text
✅ Works without page refresh (AJAX + Interactivity API)
✅ Sticky positioning
✅ Block styles customization (Font size, Padding, Margin)
✅ The block can add parameters to the page URL, for example, ?filter-category=travel
The plugin also has a PRO version, its main difference is that it supports filtering by any custom taxonomy – Tags, Product Categories, Product Tags, Brands, etc. It has a bunch of other features too.
Pro features
⚡️ Custom taxonomies are supported
⚡️ Multiple taxonomy filters within the same Query Loop block (for example, by categories AND tags)
⚡️ Sort categories (terms) in the filter alphabetically, by post count, or in a custom order
⚡️ The filter can be displayed as buttons with the possibility of style customization (Text color, Background color, Border, Border radius, etc.)
⚡️ Display checkboxes in the dropdown filter to select multiple categories