JOJoplin
Use with conditions
An offline-first notes and to-do app with notebooks, web clipping, and a choice of synchronization services.
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NONotesnook
Notes & Knowledge
End-to-end encrypted notes across devices, available in browsers, desktop applications, and phones.
Use with conditions
Last updatedRelease 2026-09-14
Open source licenseGPL-3.0
PlatformsWindows · macOS · Linux · Android · iOS · Web
DeploymentDesktop / Mobile / Web
About this project
Notesnook is a note-taking application for computers, phones, and browsers. Notes, notebooks, tags, and links provide its main organizational structure. The official site describes encrypting notes before they leave the device for synchronization. Users can continue writing across devices while preserving relationships between entries through links and references back to connected notes.
The editor supports tables, checklists, code blocks, mathematics, outlines, images, attachments, and Markdown. A web clipper saves articles for offline reading. Individual notes can be published as pages, optionally protected by a password. App locking and the separate Vault feature provide different access controls, while reminders can be attached to notes and repeated on a schedule.
Clients cover Windows, macOS, Linux, Android, iOS, and the web. Free and paid plans differ in storage and features. Client applications, synchronization server code, and an importer are published separately. The current site still lists self-hosting the sync server as work in progress; code availability alone should not be read as identical readiness across every deployment path.
Decision guide
01
Why it is worth a look
- Encryption by default with multi-platform support
- Official installers, mobile applications, and a web app
- The free plan retains unlimited notes and multi-device use
02
Before you use it
- Free and paid plans differ in attachments, storage, and some features
- The user must safeguard account and recovery information
- Keep independently exported, verifiable copies of important notes
Manual setupLow
With an AI agentLow
DeploymentDesktop / Mobile / Web
Additional requirements1 confirmed; others not verified
Use a supported operating system; Have permission to install local applications; Confirmed requirements: Account; Some requirements have not been verified. Check the official setup instructions.
03
What it can do
- End-to-end encrypted notes
- Cross-device synchronization
- Offline reading and writing
- Web clipping
- Note import and export
Who it fits
Good for
Reducing configuration effort for encrypted synchronization; Writing notes frequently across computers and phones
Not a fit
Rejecting any cloud-service account or paid-feature boundaries
Getting started
- Open the official web app or download an installer
- Create an account as instructed and safeguard recovery information
- Create and synchronize test notes before importing important material
