PrismSearch builds a custom inverted index and provides live AJAX search through theme integration, a native block or shortcode.

Features

Fast inverted-index based search.
Frontend AJAX search shortcode.
Integration with Twenty Twenty-Five, Storefront and Astra.
Replaces standard classic and block search forms where supported.
Native dynamic PrismSearch block.
Indexes posts, pages and selected public custom post types.
Indexes selected public taxonomy terms.
Displays selected frontend metadata in live results.
Configurable NLP language for tokenization.
Fuzzy typo matching fallback.
Optional replacement for the default WordPress search results page.
Configurable rate limiting (50 requests per IP per minute by default; 0 disables it).
Live index updates when selected content is saved, updated, trashed or deleted.
Optional REST Search Fast Path for eligible anonymous searches.
Optional frontend.css loading for custom theme styling.
Optional Enter key redirect to the full search results page.
Optional voice input through the Web Speech API.
Theme template overrides.

Supported NLP languages

PrismSearch includes processors for: English (en), German (de), French (fr), Spanish (es), Portuguese (pt), Italian (it), Dutch (nl), Danish (da), Swedish (sv), Norwegian (no), Finnish (fi), Polish (pl), Czech (cs), Slovak (sk), Slovenian (sl), Croatian (hr), Serbian (sr), Bulgarian (bg), Romanian (ro), Hungarian (hu), Greek (el), Turkish (tr), Russian (ru), Ukrainian (uk), Lithuanian (lt), Latvian (lv), Estonian (et), Indonesian (id), Vietnamese (vi), Japanese (ja), Chinese (zh), Korean (ko), Arabic (ar), Persian (fa), Hebrew (he) and Thai (th).

Some CJK and script-based languages use basic normalization and token support. Test with your own content before production use.

Shortcode

Add the live search box with:

[prismsearch]

Optional attributes:

[prismsearch min_chars="3" limit="10" placeholder="Search..."]

Enter key redirect:

[prismsearch enter_redirect="1"]

[prismsearch enter_redirect="0"]

Voice input:

[prismsearch voice_search="1"]

[prismsearch voice_search="0"]

Voice input uses the configured NLP language. Developers can override it with the prismsearch_speech_language filter. The microphone stays hidden when browser speech recognition is unavailable.

Automatic theme integration

Enable automatic integration under Settings > PrismSearch > Frontend.

Twenty Twenty-Five: inserts the PrismSearch block into supported headers.
Storefront: replaces the built-in header product search.
Astra: replaces Astra Search elements added through the Header Builder.
Other themes: replaces existing classic search forms and Core Search blocks. It does not create a new search position.

WooCommerce products must be selected under Content and indexed before they appear in results.

Developers can disable automatic integration with:

add_filter( 'prismsearch_automatic_theme_integration', '__return_false' );

Privacy and external services

Indexing, tokenization and search run locally in WordPress. PrismSearch does not load remote frontend or admin assets.

When voice search is disabled, PrismSearch does not access the microphone. When enabled and activated, speech recognition is handled by the browser Web Speech API. Audio may be processed locally or by a browser-vendor service. PrismSearch does not receive or store microphone audio; it receives only recognized text.

Included third-party libraries

PrismSearch includes Select2 4.1.0 for admin multi-select fields. Select2 is MIT licensed; its license is at assets/vendor/select2/LICENSE.md. Source: https://github.com/select2/select2.

Templates and styling

PrismSearch loads its default frontend stylesheet unless disabled in settings.

Developers can also disable it with:

add_filter( 'prismsearch_load_frontend_css', '__return_false' );

Override plugin templates from your theme under:

template/prismsearch/

Example:

template/prismsearch/item.php