Safe Notes - Encrypted Notepad | F-Droid - Free and Open Source Android App Repository

Safe Notes - Encrypted Notepad

Encrypted, Private note manager

New in version 2.3.0

- Support passphrase autofill
- Autorotation support [experimental]
- Now available in Czech, German, Indonesian, Norwegian, Polish, Spanish, and Ukrainian

★ Safe Notes is an open-source project that aims to provide an encrypted, private note manager.
★ Employs rigorously tested AES-256 encryption standards to encrypt your notes.
★ Incognito Keyboard
★ Brute-force protection
★ Protection against data snooping via adb
★ Android background snapshot protection
★ Inactivity guard
★ Automated encrypted backup
★ Arctic Nord style dark and light theme
★ Customization for colorful notes
★ Seamless migration to new device. Use the backup to move your data from one device to another device.
★ Safe Notes provides ultimate security - you don't have to trust us, or any other third party because everything is done locally on your phone.
★ Contrary to the ongoing frenzy of "move everything to cloud" we believe in "localization of user data" giving you the control of your data and not some third-party cloud service provider.
★ Completely anonymous, no inbound and outbound requests.

--- How it works ---

★ Safe Notes encrypt each note with a unique AES-256 symmetric key derived from your passphrase and randomly generated salt.
★ If an attacker tries to brute-force your encrypted notes it will take "Trillions Upon Trillions years" in contrast, the universe has only existed for 15 billion years. (You must use strong and long passphrase).
★ AES-256 is symmetric key encryption that is quantum-resistant, i.e. it isn't vulnerable to quantum computers.
★ Everything is stored locally on the user's device.
★ Your passphrase is never stored on the device, it gets purged as soon as you exit the app.
★ We can't decrypt your notes even if we wanted to. That gives you the ultimate security, but it also means that a lost passphrase can never be recovered.
★ Safe Notes is an open-source, not-for-profit project.

Author: Keshav Priyadarshi
License: GNU General Public License v3.0 or later
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Source Code
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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.

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Version 2.3.0 (10) suggested Added on May 05, 2023

arm64-v8a armeabi-v7a x86_64

This version requires Android 7.1 or newer.

It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Permissions
- view network connections
  
  Allows the app to view information about network connections such as which networks exist and are connected.
- run foreground service
  
  Allows the app to make use of foreground services.
- read the contents of your shared storage
  
  Allows the app to read the contents of your shared storage.
- run at startup
  
  Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
- use biometric hardware
  
  Allows the app to use biometric hardware for authentication
- use fingerprint hardware
  
  Allows the app to use fingerprint hardware for authentication
- prevent phone from sleeping
  
  Allows the app to prevent the phone from going to sleep.
- modify or delete the contents of your shared storage
  
  Allows the app to write the contents of your shared storage.
Download APK 50 MiB PGP Signature | Build Log
Version 2.2.0 (9) - Added on Dec 28, 2022

arm64-v8a armeabi-v7a x86_64

This version requires Android 7.1 or newer.

It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Permissions
- view network connections
  
  Allows the app to view information about network connections such as which networks exist and are connected.
- run foreground service
  
  Allows the app to make use of foreground services.
- read the contents of your shared storage
  
  Allows the app to read the contents of your shared storage.
- run at startup
  
  Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
- use biometric hardware
  
  Allows the app to use biometric hardware for authentication
- use fingerprint hardware
  
  Allows the app to use fingerprint hardware for authentication
- prevent phone from sleeping
  
  Allows the app to prevent the phone from going to sleep.
- modify or delete the contents of your shared storage
  
  Allows the app to write the contents of your shared storage.
Download APK 50 MiB PGP Signature | Build Log
Version 2.1.0 (8) - Added on Nov 23, 2022

arm64-v8a armeabi-v7a x86_64

This version requires Android 7.1 or newer.

It is built and signed by F-Droid, and guaranteed to correspond to this source tarball.
Permissions
- view network connections
  
  Allows the app to view information about network connections such as which networks exist and are connected.
- run foreground service
  
  Allows the app to make use of foreground services.
- read the contents of your shared storage
  
  Allows the app to read the contents of your shared storage.
- run at startup
  
  Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.
- prevent phone from sleeping
  
  Allows the app to prevent the phone from going to sleep.
- modify or delete the contents of your shared storage
  
  Allows the app to write the contents of your shared storage.
Download APK 49 MiB PGP Signature | Build Log