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Nooto

Cross-platform, privacy-focused notes with end-to-end encryption
New in version 0.2.5
Fix insets on earlier webview
Nooto is a note-taking app that keeps your notes private. Everything is encrypted on your device before it ever leaves it, using AES-256-GCM encryption with keys derived locally via Argon2id. Nobody but you, not even the server operator, can read your notes.

Features:

  • Notes are encrypted on-device before sync; the server only ever sees ciphertext

  • Works fully offline, no account required to use the app locally

  • Optional sync across devices, using the built-in public server or your own self-hosted instance

  • Folders, drag-and-drop organization, and a markdown editor

  • Fully open source and auditable



What the server stores: only an opaque note ID and ciphertext blobs for content and metadata. No readable title, no readable content, no plaintext of any kind.

Please note: Nooto is beta software and still under active development. The encryption design has not yet been reviewed by an independent security auditor. Use at your own discretion, and please report issues on the project's GitHub page.
  • app screenshot
  • app screenshot

Versions

Although APK downloads are available below to give you the choice, you should be aware that by installing that way you will not receive update notifications and it's a less secure way to download. We recommend that you install the F-Droid client and use that.

Download F-Droid
  • Version 0.2.5 (2005) suggested Added on Oct 16, 2026

    arm64-v8a

    This version requires Android 7.0 or newer.

    It is built and signed by the original developer, and guaranteed to correspond to this source tarball.

    Permissions
    • have full network access
      Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.
    • com.nooto.app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

    Download APK 17 MiB PGP Signature | Build Log

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