Open Source Security & Privacy Software
Tunnelblick
A free and open-source graphic user interface for OpenVPN. With Tunnelblick anyone can create a connection with a Virtual Private Network on macOS, as long as they have access to a VPN server. Tunnelblick is openly developed and all source code is available for anyone to take a look at or improve upon, thus you can be sure that Tunnelblick is developed with privacy and security in mind. The software is released under the GNU General Public License (GPL 2).
ProtonVPN
ProtonVPN is a virtual private network service provider operated by the Swiss company Proton Technologies AG, the provider of ProtonMail. Just like ProtonMail, ProtonVPN is a community supported project that aims to build a safer Internet that also protects civil liberties. The service provides a strict no data logging policy, that ensures that no personal data is kept by ProtonVPN. It also has Tor integration and SecureCore servers for additional security if needed. Currently, ProtonVPN provides over 560 servers in more than 40 countries.
ownCloud
With ownCloud, organizations can collaborate and be more production on their own secure enterprise file sharing (EFSS) platform. The ownCloud platform is self-hosted and allow for secure file sharing within an organization. The platform can be hosted on premise or on a cloud instance, controlled by the organization. The software is written in PHP and Javascript and is fully open source, released under the AGPLv3 license. ownCloud can run on most server hardware and operating systems, and the client for accessing ownCloud is available for Android, iOS, macOS, Linux and Windows.
Tails
The Amnesic Incognito Live System or Tails for short is a portable operating system that protects you against surveillance and censorship. The operating system can started from a USB stick on any macOS, Linux or Windows computer, leaving no trace on that computer after it has been shutdown. Allowing you to make any computer into a Tails protect environment free of surveillance. Tails includes a variety of open source tools that can be used to browse the web, edit document and communicate saftley. Including Tor, Tor Browser, Pidgin, Network Manger, VeraCrypt, GNUPG, MAT, KeePassXC, GtkHash and many more.
Nextcloud
With Nextcloud, users can host their own secure cloud solution for file storage, collaboration and communication for enterprise or personal purposes. Nextcloud gives you full control over your own data and where and how you host it. The software can be hosted on-premise or on any VPS or cloud instance provided by third-party web hosts. If you value privacy and security, Nextcloud might be the right choice for you. Nextcloud is both free and open source and developed in an open, transparent and trustworthy manner.
Matrix.org
Matrix.org is an open network for secure, decentralized communication. It gives you a simple HTTP APIs and SDKs (iOS, Android, Web) to create chatrooms, direct chats and chat bots, complete with end-to-end encryption, file transfer, synchronised conversation history, formatted messages, read receipts and more. All conversations on Matrix are replicated over all the servers participating in them, meaning there are no single point of control or failure.
SIEMonster
SIEMonster is a customizeable and scalable Security Information and Event Management software that is suited for small, medium and enterprise organizations. The SIEM is the brainchild of a team of professional hackers with over 20 years’ experience hacking into companies around the world. SIEMonster is released as free and open-source software and is well documented, and include options to purchase support packages and managed solutions.
Master Password
Master Password is password manager based on an ingenious password generation algorithm that guarantees your passwords can never be lost. While most password managers store your passwords on a server or your local device, Master Password generates unique passwords on the fly, based on your username, the site or application and time. This approach makes Master Password safer from loss, theft, problems with backups, sync, confiscation, snooping, and more.
KeePassXC
KeePassXC is a free and open source, cross-platform password manager. KeePassXC provides complete atabase encryption using industry standard 256-bit AES. Fully compatible with KeePass Password Safe formats. Your password database works offline and requires no internet connection. The application includes a seamless expreience with native UI for Windows, macOS, and Linux.