GitPress - A blog writing tool based on GitHub, designed for developers
Sheety - Turn any Google sheet into an API instantly, for free. Power websites, apps, or whatever you like, all from a spreadsheet. Changes to your spreadsheet update your API in realtime. Neat
HubPress - A free, open source tool you can use to build a blog using GitHub Pages and AsciiDoc. HubPress is a web application that makes it easy for you to maintain a blog.
Sheetsu - Turn Google Spreadsheet into API
Sairin - You can one-click deploy a blog on Vercel that fetch blog posts from your GitHub repository's issues.See https://blog.sairinjs.com/introducing-sairin for more details.
Dashblock - Turn any website into an API