Caspian by Mohamed Iyed Touati

Caspian is a minimal, privacy-first sidebar extension for taking notes, managing todos, and organizing your thoughts, tied to the page you 're viewing.
Features :
- Per-page notes: each page gets its own note, scoped by URL or domain
- Markdown editor — write with bold, italic, headings, lists, code blocks,
- Todo lists: add checklists to any note, filter by active/done
- Tags : organize notes with tags and filter across all of them
- History : search and browse all your saved notes in one place links,and highlights
- Templates : built-in templates for meeting notes, study notes, reviews, and daily journals
- Export : save notes as PDF, image, or Word document; export/ import all data as JSON
- Dark mode :full dark theme with customizable fonts and sizes