Notunderscore's (mostly open-source) recommendations

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NotunderscoreList by Notunderscore, last updated 
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  1. hMailServer is a free e-mail server for Microsoft Windows. Its used by Internet service providers, companies, governments, schools and enthusiasts in all parts of the world.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Windows
    hMail Server screenshot 1
    hMail Server screenshot 1
  2. Briefing icon
     Like

    The preservation of privacy is the main driver for this project. Secure technologies, such as WebRTC, are used to establish a direct connection between the participants. The website that provides the web application and mediates the communication stores as little data as...

    Cost / License

    • Free
    • Open Source

    Platforms

    • Online
    • Self-Hosted
    • npm
    Briefing screenshot 1
    Briefing screenshot 1
  3. BeeBEEP icon
     Like

    My go-to LAN messenger

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    BeeBEEP screenshot 1
    BeeBEEP screenshot 1
    BeeBEEP screenshot 2
  4. qTox icon
     Like

    Gee, if you want some serious, and I mean serious privacy-respecting chat, this is the best option!

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • FreeBSD
    • Flathub
    • Flatpak
    qTox screenshot 1
    qTox screenshot 1
  5. Your FOS email client. I personally use it to debug hMail/stmp local servers

    Cost / License

    • Free
    • Open Source

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Android
    • BSD
    • AppImageHub
    • Snapcraft
    • Flathub
    • PortableApps.com
    • F-Droid
    • Haiku
    • Homebrew
    • Chocolatey
    Thunderbird screenshot 1
    Thunderbird screenshot 1
    Thunderbird screenshot 2
    +8
    Thunderbird screenshot 3
  6. Mumble icon
     Like

    Open source, low-latency voice chat offering high quality audio, secure encryption, self-hosting, in-game overlays, positional audio, and granular permissions.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • iPhone
    • BSD
    • iPad
    • Self-Hosted
    • Snapcraft
    • Flathub
    • PortableApps.com
    • Haiku
    Client (Mumble 1.3.0)
    Connected to a Server (Mumble 1.3.0)
    Public Server List (Mumble 1.3.0)
    +8
    Mumble 1.2.3 Release Candidate – some users in different channels
  7. Passwords and security

  8. VeraCrypt icon
     Like

    Secure and encrypt entire partitions or devices, including system drives, with automated, real-time protection and enhanced security measures.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • PortableApps.com
    • Homebrew
    • Chocolatey
    Langage
    VeraCrypt screenshot 1
    Encrypted volume wizard. Step 1.
    +8
    Encrypted volume wizard. Step 3.
  9. GnuPG icon
     Like

    GnuPG allows to encrypt and sign your data and communication, features a versatile key management system as well as access modules for all kinds of public key directories. GnuPG, also known as GPG, is a command line tool with features for easy integration with other applications.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Linux
    • PortableApps.com
    • Xfce
    • OpenPGP
    GnuPG Shell running GnuPG on Windows
  10. KeePass icon
     Like

    Free and open source password manager storing passwords in a local encrypted database with strong AES or Twofish encryption and master key access.

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD
    • Mono
    Entry Templates Plugin
    Main window
    Login Screen
    +5
    Built-in Password Generator
  11. KeePassXC icon
     Like

    Same as KeePass, but more cross-platform and with some other features and improvements, and with a built-in browser support (you need an add-on, though)! (it's a fork of KeePass!

    Cost / License

    • Free
    • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • AppImageHub
    • Snapcraft
    • Microsoft Edge
    • Google Chrome
    • Flathub
    • PortableApps.com
    • Flatpak
    • Homebrew
    • Chocolatey
    • Mozilla Firefox
    Welcome Screen
    Unlock Database
    New Database Wizard
    +13
    New Database Wizard
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And that's the end of the list, folks! I hope y'all find it useful, and thanks for viewing this list!

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