Bludit - Bludit is a web application to build your own website or blog in seconds, it's completely free and open source. Markdown support.
Bubble.io - Building tech is slow and expensive. Bubble is the most powerful no-code platform for creating digital products.
Grav - The modern open source flat-file CMS
Sheet 2 Site - Generate a website from 📗 Google Sheets
HTMLy - HTMLy is an open source databaseless blogging platform. A Flat-File Blog and Flat-File CMS written in PHP prioritizes simplicity and speed.
Adalo - Build apps for every platform, without code ✨