I'd probably fall more under designer than developer, but I love Webflow: https://webflow.com/
Our marketing website cycles have gotten so much shorter with Webflow. Even though it's just replacing HTML/CSS/JS for marketing sites, the direct design and publish access in a way that's intuitive and reliable saves us time directly on the marketing site (0 dev time now) and frees up dev to focus on more interesting things. We've gone from design -> develop -> commit/publish, to design + publish in one nice tool.
Our marketing website cycles have gotten so much shorter with Webflow. Even though it's just replacing HTML/CSS/JS for marketing sites, the direct design and publish access in a way that's intuitive and reliable saves us time directly on the marketing site (0 dev time now) and frees up dev to focus on more interesting things. We've gone from design -> develop -> commit/publish, to design + publish in one nice tool.