About this plugin
Most filter plugins make you build every filter by hand, for every category. FilterSmith looks at the products on each page and picks the filters that make sense there: subcategory, brand, price, your WooCommerce attributes, on sale, rating and stock. A boiler category gets different filters than a tap category, without any configuration.
What you get
- Automatic filters per page – on category, shop, tag and brand pages. A filter only appears when it actually helps (at least two options, enough products covered).
- Instant AJAX filtering – results, counts and pagination update without a page reload, using a light response with only the products. Back and forward buttons work, and every filtered page has its own URL.
- Desktop filter bar – compact drop-down panels above the product list, with removable filter chips and “clear all”.
- Mobile filter sheet – a full-height bottom sheet with large touch targets, a live “Show 24 products” button, swipe down or Esc to close.
- Price slider and number sliders for numeric attributes (litres, watts, millimetres…).
- Sorting and products per page in the same bar, replacing the default WooCommerce controls.
- Live counts next to every option; options without results disappear.
- Fast on large shops – a dedicated attribute index and the WooCommerce lookup tables, with smart caching. Works with page caches such as SiteGround Optimizer, WP Rocket and LiteSpeed.
- SEO-safe – filtered and sorted variants get noindex, follow and filter options are not crawlable links, so search engines do not waste time on endless filter combinations.
- Works without JavaScript – the filter is a normal form, AJAX is an enhancement.
- Switch filter types on or off for the whole shop (brand, price, sale, rating, stock…), and hide attributes you never want as a filter.
- Clean up messy data – merge attribute values that mean the same thing (“Heating & cooling” / “Heating & air conditioning”) or hide values, for all products at once. Codes such as EAN or SKU never become a filter.
- Accent colour setting to match your brand.
- Translation-ready – follows the site language (also with WPML and Polylang) or can be forced.
- Brand support for WooCommerce Brands, Perfect Brands for WooCommerce and YITH Brands.
- Classic themes (Astra, Enfold, Flatsome, OceanWP, Kadence, Storefront…) and block themes.
- Compatible with WooCommerce HPOS.
FilterSmith Pro
Pro is a separate add-on for shops that need more:
- Smart text recognition – reads volume, power, size, voltage, flow rate, colour and material from product titles and descriptions (including specification lines and tables), so you get useful filters even when your products have no attributes.
- Custom filter sets per category – choose, order and rename the filters for any category yourself.
- One global order and names for the filters on all pages.
- German, French and Spanish for the filters, the settings and the text recognition.
- Colour swatches next to colour options.
- Priority email support.
The free plugin is complete on its own and never limits the number of filters, products or categories.