Webflow is visual web development: design on a canvas that maps to real HTML and CSS, hook it to a CMS, and publish production sites with hosting, forms and interactions handled. Designers ship marketing sites without engineering, and the output is clean enough that engineers do not wince.
It suits designers and agencies shipping marketing sites and client work. The learning curve is real — it assumes you think in the box model — and CMS and traffic pricing add up. Framer has become the faster-to-ship rival for simpler marketing sites.