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Software · Education & science

Notesnook

A fully open source & end-to-end encrypted note taking alternative to Evernote.

  • Limited free plan
  • Windows, macOS, Linux and Android
  • Open source
  • No account

Overview

Notesnook is a note-taking program, available on Windows, macOS, Linux and Android.

Features described in its F-Droid listing, in its Flathub listing and in its GitHub repository: end-to-end encryption, attachments and Markdown support.

Overview written by LicitPro from the documentation published by the authors and the cited sources; we have not tried the resource ourselves.

Excerpts that establish this information
  • “A fully open source & end-to-end encrypted note taking alternative to Evernote” — Flathub, 10 November 2026
  • “A fully open source & end-to-end encrypted note taking alternative to Evernote” — Flathub, 10 November 2026
  • “Make notes with file attachments” — F-Droid, 10 November 2026
  • “Full markdown editor - Most markdown shortcuts are supported” — F-Droid, 10 November 2026

At a glance

Notesnook offers a limited free plan; advanced features or heavier use are paid.

Its licence (GPL-3.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Plans and conditions

  • Free plan: basic features are free; others are reserved for paid plans.
  • Paid subscriptions from 1,79 € per month (price read on the official page).

Strengths

  • Open source code
  • No account needed
  • No advertising
  • No credit card asked
  • Commercial use allowed

Weaknesses

  • Limited free plan

About

Notesnook is a free (as in speech) & open source note taking app focused on user privacy & ease of use. To ensure zero knowledge principles, Notesnook encrypts everything on your device using XChaCha20-Poly1305 & Argon2. Notesnook is our proof that privacy does not (always) have to come at the cost of convenience. Our goal is to provide users peace of mind & 100% confidence that their notes are safe and secure. Our decision to go fully open source is one of the most crucial steps towards that. Notesnook is a user focused note taking tool meant to offer a fully end-to-end encrypted note taking experience for everyone. This includes the majority of our less tech savy users who just want to take notes without all the hassle. In short, Notesnook aims to offer a complete replacement for other insecure note taking tools like Evernote & Notion. Because let's be honest, these tools offer great productivity but at a great cost to your privacy.

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Winget (Windows Package Manager) (credit card, account, source code, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) —
  • Facts collected from Official plan pages (pricing, licence, terms) (limits, free status, commercial use) —
  • Facts collected from F-Droid (credit card, source code, publisher, licence, free status, platforms, ads, commercial use, version) —
  • Facts collected from Homebrew (platforms) —
  • Facts collected from Wikidata (licence, platforms) —
  • Last technical check: 5 November 2026
  • Description from Flathub — AppStream (Flathub)

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