Onlook

Onlook is a dev tool for product teams. It's a browser extension that lets anyone design directly in a web product and publish their changes to GitHub, all without writing a line of code themselves.

Onlook makes it easy to tweak copy, adjust styles, layouts, and more, directly in the source of truth – your live site. Re-arrange elements, experiment with ideas, and when you're ready to write your changes to an existing project, you can do so in just a click.