penumbra

An offline-first, open-source, encrypted local notes app. Usable in the browser or as a standalone app (PWA).

All notes are saved locally using AES-GCM encryption with a 256-bit key derived via PBKDF2.

Note: a browser which implements the new File system Access API is required in order to open and save files. Currently only Chrome and Edge support this, though the feature is being implemented in other browsers.

State

{
    name: "mynotes.enc", // Blank unless opened/saved
    initialCharacterCount: 100, // Blank unless opened/saved
    initialWordCount: 25 // Blank unless opened/saved
    password: "xxx", // Removed before encrypting/saving
    fileHandle: {...}, // Removed before encrypting/saving
    settings: {...}, // Document-specific settings
}

Changelog

v0.6.0

19 May, 2024

• Added global settings.
• Added document-specific settings.
• Added settings interface.
• Added bullet list sshortcut.
• Removed needless top-level component re-rendering.

v0.5.0

26 April, 2024

• Added list blocks.
• Added code blocks.
• Added quote blocks.
• Better line break handling.

v0.4.1

10 November, 2023

• About page.
• Dockerised.
• Initial deployment.
• Fixed icons on light scheme.

v0.4.0

30 October, 2023

• Slate integration.
• Rich text formatting.
• Better error modal look.

v0.3.0

22 October, 2023

• Encryption/decryption.
• Initial test suite.

v0.2.0

4 October, 2023

• File saving/loading.
• Character/word counts.

v0.1.0

29 September, 2023

• Initial interface.
• Dark mode.