Casso Websites
Build, publish, and update a website through email
Casso Websites is an email-first AI website agent for creating and maintaining hosted sites from plain-language requests. You can send a brief, attach source files, answer follow-up questions, and receive a live site without creating an account; a browser-based builder is also available.
Agenticness = how independently a tool can take action, scored across 9 dimensions. Scored independently by David Kooi, Skylark Creations — see full rubric → Last re-evaluated 19 September 2026.
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About
Casso Websites is a cloud-hosted AI website-building and maintenance service aimed at small businesses, services, local venues, and individuals who want a site without working in a traditional website editor. Its core interface is email: you...
Casso is notably more agentic than a one-shot AI page generator: it can turn requests into a deployed website and continue handling edits over email. It is best suited to people who value a low-friction, hands-off publishing workflow and do not need...
Executes tasks you assign, one step at a time, within narrow domains.
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- Free: Website generation, described site functionality, and indefinite hosting on a
.bycasso.comaddress; connecting an existing custom domain is also stated as free. - $96/year: Casso buys and registers a domain for customers who do not already own one.
When Casso Websites changes its pricing, we catch it the next morning
We recrawl every tool in this directory daily. AI Insider is the 3-minute brief on what actually changed — pricing, features, score moves on our 36-point rubric — often before any press coverage. Sent daily. Skipped when nothing happened.