Zefyr 
Soft and gentle rich text editing for Flutter applications.
Zefyr is currently in early preview. If you have a feature request or found a bug, please file it at the issue tracker.
Documentation
Clean and modern look
Zefyr's rich text editor is built with simplicity and flexibility in mind. It provides clean interface for distraction-free editing. Think Medium.com-like experience.
Markdown-inspired semantics
Ever needed to have a heading line inside of a quote block, like in this Markdown block:
I'm a Markdown heading
And I'm a regular paragraph
Zefyr can deliver exactly that:
Ready for collaborative editing
Zefyr's document model uses data format compatible with Operational Transformation which makes it possible to use for collaborative editing use cases or whenever there is a need for conflict-free resolution of changes.
Zefyr editor uses Quill.js Delta as underlying data format. Read more about Zefyr and Deltas in our documentation. Make sure to checkout official documentation for Delta format as well.