Knowster - 2026 Pricing, Features, Reviews & Alternatives

Knowster is a cloud-based AI chatbot that trains on a website's existing pages and uploaded documents to answer visitor questions automatically. Setup requires a single script tag and takes approximately five minutes, with no developer resources, content migration, or pre-loaded answers needed. The chatbot widget is embeddable on WordPress, Shopify, Wix, Squarespace, Webflow, Framer, Ghost, Drupal, and plain HTML sites.

The platform supports training on website URLs and uploaded documents including Google Docs, Google Sheets, plain text, and markdown files. Scheduled content re-reads keep answers current as page content changes. Knowster understands visitor intent rather than matching keywords, responds in the visitor's language without configuration, and declines off-topic questions rather than generating unsupported answers. A customizable widget allows configuration of color, greeting text, and starter questions, while a custom system prompt gives operators control over chatbot behavior.

Knowster includes in-chat lead capture with email delivery to up to five teammates, Google Sheets export, or webhook integration. Visitor data is encrypted in transit, not shared with third parties, and not used to train models. A free plan is available with no credit card required, and additional messages can be purchased as a one-time transaction without automatic charges, making the platform accessible for small businesses and individual website owners seeking automated visitor support without ongoing infrastructure overhead.