Octopress vs Gatsby JS

Octopress is designed to remove all the time-consuming and frustrating tasks you usually have to deal with when using Jekyll. You don't have to write your own HTML templates or do any configuration to get started. The default template also takes care of any basic CSS/JS you need to write to get going.

Another advantage of being based on Jekyll is default access to the extensive plugin system for Jekyll. There are also plugins developed specifically for Octopress.

As Octopress is simply a framework on top of Jekyll, it benefits from being based on one of the most popular site generators available. The primary benefit is that it is backed by git and is built in such a way that the site can be easily re-generated if the content changes.

Uses the Markdown syntax for writing blogs.

Editing markup is phenomenally easy when you have components.

Every change you make can be almost immediately seen in a browser.

Gatsby offers a lot of plugins to integrate tools like SASS, typescript, styled components, etc.

Gatsby is very actively developed and the maintainers are very helpful.

Gatsby can generate the pages with content from any sources like Drupal, Wordpress, Contentful, etc. If the source plugin is not coded for your solution, you can create it.

The static pages are generated by Server Site Rendering of the React app. So you have all benefits of a static site, and all benefits of a React app, which is very powerful.

Gatsby have a lot of examples sites in his github repository.