Notesnook

Notesnook is an open-source, end-to-end encrypted note-taking application that syncs private notes across devices with rich text editing and full offline support.

Notesnook web application interface showing the navigation sidebar, notes list pane, and an active note editor with formatting controls, checklists, and a table.

About Notesnook

Notesnook is an open-source, end-to-end encrypted note-taking platform developed by Streetwriters. It allows users to create, organize, and synchronize notes across Windows, macOS, Linux, Android, iOS, and web browsers. Notes are encrypted client-side before transmission. The application includes a rich text editor supporting markdown, tables, checklists, code blocks, and math formulas. Additional functionality includes app locks, note vaults, note linking, a web clipper, note publishing, and an inbox API for external integrations. Users can also self-host their own synchronization server.

What you can do

  • Cross-device synchronization that encrypts notes on the local device prior to transmission.

  • Rich text editing with support for markdown, tables, checklists, codeblocks, math formulas, and attachments.

  • Secondary password-protected vault to lock sensitive notes independently of general application access.

  • Web clipper extension to capture article text and images directly into notes for offline access.

  • Standalone web page publishing for individual notes with optional password protection.

Sources

Source information collected on . Features and pricing may change.