aviket

This Plugin searches all the posts, pages with a blog. You have to enclose the term you want to search 
with shortcode like [findwordsc]Searchterm[/findwordsc]. The plugin “Searchterm” is searched throughout the blog. A rolling carousel is displayed 
which contains button links to all the posts and pages, containing the word “Searchterm”. 
After clicking the link, the post is displayed in a modal popup(Thickbox). In the post thus displayed by clicking on the link, all the occurrences of search 
terms are highlighted. The highlighting style is controlled by settings. 
The settings page is opened by clicking in the “Findwords options” menu item in the settings menu. 
mark.js Javascript/ Jquery plugin is used for highlighting. 
Link to the mark.js plugin: 
https://markjs.io

Findwords

This Plugin searches all the posts, pages with a blog. You have to enclose the term you want to search

wpdreams

Ajax Search Lite is a live search plugin for WordPress. This responsive live search engine, which will boost your user experience by providing a user friendly ajax powered search form – a live search bar. You can filter the results with the category and post type filter boxes as well. Google autocomplete and keyword suggestions also included.
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/qI2_iKK4n_4?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
Very smooth animations with mobile device support and regular updates. Use Ajax Search Lite as a replacement for the default WordPress search with a better looking, more efficient search engine. 
Fine-tune the user experience by providing a powerful ajax search plugin to your visitors. Supports custom post types and custom fields and more. Boost your site search engine with this custom built live search engine.
<a href="https://ajaxsearchpro.com" rel="nofollow ugc">Home</a> | <a href="https://ajaxsearchpro.com/features" rel="nofollow ugc">Features</a> | <a href="https://documentation.ajaxsearchlite.com/" rel="nofollow ugc">Lite Docs</a> | <a href="https://documentation.ajaxsearchpro.com/" rel="nofollow ugc">Pro Docs</a>
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/tMde9nDQOEU?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>
Ajax Search Lite and Ajax Search Pro does not require monthly subscriptions, does not store your data on external servers – everything is done locally, on your server.
<h4>Features List</h4>
<ul>
<li>Search in posts and pages</li>
<li>Search in custom post types such as WooCommerce Products, Events, Portfolio items and more</li>
<li>Search in title, description, excerpt, categories and tags and any custom fields</li>
<li>Archive page live loader and filter</li>
<li>Automatic search replacement as well as widget and shortcode availalbe</li>
<li>Custom Filter boxes (checkbox filters) for categories and post types</li>
<li>WPML, Polylang and QtranslateX compatible</li>
<li>10+ built in templates + options for color adjustments</li>
<li>Retina ready vectorized SVG and CSS3 icons</li>
<li>Category and post exclusions</li>
<li>Frontend search settings boxes</li>
<li>Images in search results</li>
<li>Fully ajax powered</li>
<li>50+ options on the backend</li>
<li>Caches images for faster response time</li>
<li>Performance Options</li>
<li>Google analytics integration – both as Events and Pageviews</li>
<li>Primary and Secondary ordering options</li>
<li>Highly compatible and responsive</li>
</ul>
<h4>Support</h4>
Feel free to <a href="https://wordpress.org/support/plugin/ajax-search-lite/" rel="ugc">contact us</a> via the support forums.
<h4>In Pro version</h4>
<ul>
<li><a href="https://ajaxsearchpro.com" rel="nofollow ugc">Front-end demo</a> | <a href="https://ajaxsearchpro.com/try/" rel="nofollow ugc">Back-end demo</a></li>
<li>Create multiple search bars with different configurations</li>
<li>All page builders supported (Elementor, Divi, Oxygen, Breakdance, Gutenberg, Beaver etc..)</li>
<li>Search in Every custom post type</li>
<li>Search in <a href="https://ajaxsearchpro.com/file-search/" rel="nofollow ugc">Media Attachments and contents</a> (PDF, Excel, Word, PowerPoint etc..)</li>
<li>Search in BuddyPress activity feed, users and group names</li>
<li>Search in PeepSo Groups and Group Activities</li>
<li>Search result grouping by categories or post types</li>
<li>Search in custom fields including repeaters and special custom field taypes</li>
<li>Predictive search results suggestions</li>
<li>WooCommerce <a href="https://ajaxsearchpro.com/shop-search/" rel="nofollow ugc">Shop search and filter</a></li>
<li>Search and filter Elementor <a href="https://ajaxsearchpro.com/elementor-live-filter/" rel="nofollow ugc">Loop Grid</a> and <a href="https://ajaxsearchpro.com/jet-engine-listing-grid-filter/" rel="nofollow ugc">JetEngine Listing Grid</a></li>
<li>Advanced caching technology – image precaching, search phrase caching</li>
<li>Category filters, custom field filters, post type filters, tag filters, taxonomy term filters and date filters</li>
<li>Checkbox, Drop-down, Multiselect, Radio, Slider and Range slider filters</li>
<li>Results grouping by category, post type or content type</li>
<li><a href="https://ajaxsearchpro.com/load-more-infinite-scroll/" rel="nofollow ugc">Load more and Inifinite scroll</a></li>
<li>100+ Themes – Fully configurable and editable – with theme customizer & preview window</li>
<li>4 layouts: Vertical, Horizontal, Polaroid and Isotopic (with pagination)</li>
<li>400+ Admin options </li>
<li>Google keyword suggestions and autocomplete</li>
<li>Compatibility options and features</li>
<li>Caching options & Search statistics</li>
<li>Keyword Highlighting & more…</li>
<li>Highly compatible and responsive</li>
<li><a href="https://ajaxsearchpro.com/features/" rel="nofollow ugc">Full Features List</a></li>
</ul>
<h4>Testimonials</h4>
<blockquote>
“Beyond the live search, it also makes your search much more complete. You’ll be able to include custom fields, comments, and more in your search index.” – Ben Pines – Elementor
“Consider this plugin if you’re looking for a professional live search offering.” – Tom Ewer – WPMU Dev
“Ajax Search Pro plugin gives you a live Ajax search, so much comfortable search experience” – Dragan Nikolic – Thematosoup
“As the name suggests, the core value of Ajax Search Pro is the ability to add Ajax live search to WordPress.” – Colin Newcomer – aThemes
</blockquote>

Ajax Search Lite – Live Search & Filter

Awesome Support


A very solid plugin that offers a lot of useful features out of the box.  It's pro version however is even better. Great and quick support. Highly recommend.


A very solid plugin

The Best Ajax Live Search and Filter for WordPress. Live suggestions, Custom Post types, Custom fields, Categories, WooCommerce & Elementor support

Findwords vs Ajax Search Lite – Live Search & Filter