VK Filter Search
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About
This plugin allows you to add a search function as a block to narrow down your search by category, tag, custom post type, keyword, etc.
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What It Does
VK Filter Search adds a Gutenberg block that lets visitors narrow searches on your WordPress site by category, tag, custom post type, or keyword. It works as a front-end filter interface rather than just tweaking the default WP search query, giving you a visual block to drop into posts, pages, or templates. In practice it is a lightweight faceted search tool aimed at block-based sites.
Who It's For
This plugin fits small to mid-sized WordPress sites built primarily with the block editor that need basic faceted filtering on archives, custom post type listings, or landing pages. It is best suited for Japanese-language and multilingual sites, since the developer (Vektor / Vektor WordPress) focuses heavily on that market and documentation assumes familiarity with their ecosystem. Sites with simple taxonomies and a few thousand posts will get the most value.
Who Should Skip It
If you run a large e-commerce store, a WooCommerce shop, or any site needing AJAX-powered live search with fuzzy matching and detailed analytics, skip this and pick a heavier tool. Developers who need REST API hooks, custom field weighting, or multilingual search tuning will find it too limited.
The Bottom Line
VK Filter Search is a well-maintained, compatibility-current plugin that does one focused thing: add a block-based faceted search filter to your site. With only 6,000 installs and 3 ratings, the evidence base is thin, but the code appears current and stable. Score of 73.42/100 makes it a reasonable but unremarkable choice for block-editor sites, while heavier use cases should look at Relevanssi, Ivory Search, or Ajax Search Lite.
Related Plugins
Pick YMC Filter if you want a more visually polished filter interface with AJAX behaviour and stronger front-end controls.
Pick Relevanssi if your main problem is search result quality, including fuzzy matching, custom field weighting, and indexing controls.
Pick Ivory Search if you need to replace or extend the default WordPress search globally across the whole site rather than just add a block.
Pick Search Regex if you need an admin-side search-and-replace tool for content, which is an entirely different use case from front-end filtering.
Pick Ajax Search Lite if you want live dropdown search with thumbnails and faster perceived performance for visitors.