gmsspress

gmss-agent adds a customizable floating chat widget to every page of your WordPress site. Visitor questions are answered by matching them against a JSON knowledge-base file you provide. Everything runs locally on your server — no API key, no third-party service, no visitor data sent anywhere.
The plugin is designed for support, FAQ, and lightweight pre-sales conversations where you want answers limited to information you have written and approved.
Features
<ul>
<li>Floating chat widget with configurable title, welcome message, primary color, and corner position (bottom-right or bottom-left).</li>
<li>Local matcher with weighted token-overlap scoring: title hits and explicit keyword hits are ranked above body hits, with a phrase bonus when the visitor’s full query appears in an entry.</li>
<li>Optional <code>keywords</code> array on each entry to handle synonyms the body text does not contain.</li>
<li>Configurable fallback reply when no entry matches the visitor question.</li>
<li>JSON knowledge base loaded from a single <code>knowledgebase.json</code> file at the root of your WordPress install.</li>
<li>Ships with a sample knowledge base so the widget answers something out of the box.</li>
<li>REST endpoint protected by a WordPress nonce.</li>
<li>Translation-ready (text domain: <code>gmss-agent</code>).</li>
</ul>
Requirements
<ul>
<li>WordPress 5.8 or newer and PHP 7.4 or newer.</li>
</ul>
<h3>Privacy</h3>
The plugin does not set cookies, does not write to any custom database tables, does not contact any external service, and does not log visitor messages on your server. Settings are stored in the standard WordPress <code>wp_options</code> table and are removed when the plugin is uninstalled via the Plugins screen. The knowledge base file you create is read from disk on each request and is never transmitted off your server.

gmss-agent

Floating chat widget that answers visitor questions from a JSON knowledge base on your own server. No external API, no data leaves your site.

Upluggit

PingBlink is an all-in-one engagement widget that sits gracefully on the corner of your website. Instead of forcing users to navigate to separate pages for support, news, or promotions, PingBlink brings everything directly to them in a sleek, modern interface.
PingBlink is built using native WordPress custom post types, meaning it is 100% compatible with the Gutenberg block editor. You can build beautiful help articles and rich-text announcements using the editor you already know and love.
Major Features: 
* Knowledge Base (Help): Create and organize help articles. Users can search for answers instantly, reducing your support load. Includes built-in helpfulness voting (Thumbs Up / Thumbs Down) with analytics. 
* Announcements (News): Publish updates, new features, or company news. Users see a pulsing notification badge when new items are available, driving engagement. 
* Promotions (Offers): Run special promotions or discounts with dedicated cards to increase conversions. 
* Fallback Contact Form: If users can’t find what they need, they can easily send a message directly from the widget. 
* Built-in Analytics: Track independent views, clicks, and Click-Through Rates (CTR) separately for News and Offers, alongside simple helpfulness voting analytics for your Knowledge Base directly inside your WordPress dashboard. 
* Smart Visibility Rules: Control exactly who sees your News and Offers by restricting visibility to logged-in users, logged-out users, or everyone. 
* Customization: Choose your primary brand color, select from multiple trigger icons (Chat Bubble, Notification Bell, Megaphone, Sparkle), and position the widget on the bottom-left or bottom-right. 
* Zero Bloat: Lightweight JavaScript and CSS ensure your site speed remains lightning-fast.
<h3>Use Cases</h3>
<ul>
<li>Customer Support: Reduce support tickets by allowing customers to instantly search your knowledge base from anywhere on the site. If they can’t find the answer, the fallback contact form ensures you never lose an inquiry.</li>
<li>SaaS & Software Updates: Announce new features, bug fixes, or maintenance schedules in the News tab. Use the Logged-in Users visibility rule to display specific updates only to active users, while the unread notification badge ensures they actually see them.</li>
<li>E-Commerce Sales: Use the Offers tab to promote seasonal discounts or flash sales. You can leverage the Logged-in Users visibility rule to show exclusive discount codes to returning customers, the Logged-out Users rule to show a “Free Shipping” welcome offer to guests, and the All Visitors rule for general store-wide sales.</li>
</ul>

PingBlink – Floating Knowledge Base, Announcements & Offers Widget

A beautifully designed, lightning-fast widget for Help articles, Announcements, and Offers. Keep your users engaged without leaving the page.

gmss-agent vs PingBlink – Floating Knowledge Base, Announcements & Offers Widget