Open Source Security & Privacy Software
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.
GNUnet
Help build the internet of tomorrow with GNUnet. It's a software framework for fully decentralized, peer-to-peer networking that offers link encryption, peer discovery, resource allocation, and secure communication. The goal of the project is to replace the old insecure Internet protocol stack. GNUnet includes a fully decentralized DNS (Domain Name System) that utilize a directed graph instead of the hierarchical system implemented today. It also has it's own identity system re:claimID, a decentralized Identity Platform that is baked into GNUnet.
Keepass2Android
Keepass2Android is a password manager application specifically design for your mobile Android device. It allows to store and retrieve passwords and other sensitive information in a file called "database". This database is secured with a so-called master password. The master password typically is a strong password and can be complemented with a second factor for additional security. The password database file can be synchronized across different devices. This works best using one of the built-in cloud storage options, but can also be performed with third-party apps. Keepass2Android is compatible with Keepass 1 and Keepass 2 on Windows and KeepassX on Linux.
LessPass
With LessPass you can manage your registrations, login and passwords with is. LessPass is a password manager that computes a unique password using a site, login, and a master password for you mobile Android or iOS device or as a browser extension for Google Chrome and Firefox. Since a password manager, or any software for that matter is as secure as it is transparent, the LessPass source code is available on Github and can be inspected and perfected by anyone in the community.
Blokada
Blokada is a popular, free and open source ad blocker and privacy app for Android and iOS. With Blokada you can efficiently block ads, trackers, malware, save on your data plan, speed up your mobile device. Blokada is actively developed by an amazing open source community where anyone is free to contribute and verify the source code.
Padlock
Padlock is an open source, cross-platform password manager that lets you syncronize passwords across platforms. With Padlock you can store your passwords saftley. Padlock is provided as a manage service for a monthly cost, or can be self-hosted on your own hardware or in the cloud.
KeePassDroid
KeePassDroid is a port of the KeePass Password safe for the Android platform. With KeePassDroid password manager you can safetly and securely manage passwords for your mobile android device.
Buttercup
Buttercup is a free and open-source password manager, available on all major platforms. With Buttercup you can track and store your login information for any service and device that you use. The application's securely encrypted vault allow you to store account information securely with additional support for 2FA/OTP (TOTP).
QtPass
QtPass is free and open-source, cross-platform password manager that is part of the pass ecosystem. The pass project is an open initiative that builds the standard unix password manager, a universal protocol for password management. This means that you can easily switch away from the QtPass to a new client, as long as it uses the "pass" password store.