An AI chat widget for your website

One line of code adds a chat widget that answers visitors from your own content and captures leads, on every page.

Knowster's widget is a small script you drop into your site. It loads a chat bubble trained on your website and docs, so visitors get real answers instead of a contact form. It works anywhere you can paste HTML.

One script, every page

Copy one snippet into your site's HTML and the widget appears site-wide. No plugins, no framework lock-in. It runs on WordPress, Webflow, Shopify, plain HTML, or anything that accepts a script tag.

What the widget does

• Answers from your content - powered by your knowledge base, not generic replies.
• Captures leads - collects name and email in the chat. See lead capture.
• Matches your brand - set the accent color, greeting, title, and starter questions.
• Light and dark ready - looks right on any site.

Customize without code

Greeting, starter-question pills, accent color, and whether lead capture is on are all set from your dashboard or with data attributes. Change them any time without touching the snippet again.

FAQ

How do I add the chat widget to my website?

Paste one script tag into your site's HTML. It works on any platform that accepts HTML, including WordPress, Webflow, and Shopify.

Will it slow my site down?

No. The widget loads asynchronously and does not block your page.

Can I change how it looks?

Yes. Set the color, greeting, title, and starter questions from the dashboard or with data attributes.

Is it free?

Yes. The Free plan includes the widget on one website with 50 chats a month.