LuLu is a free, open-source macOS firewall that blocks unknown outgoing network connections. It alerts users when a new or unauthorized outgoing connection is created, which may indicate a newly installed application or malware. Installation requires manual approval of its System Extension and Network Filter through macOS, and it runs from the status bar, starting automatically at login.
Awesome Privacy is a curated open source directory of privacy-respecting alternatives to everyday apps and services, organized into categories such as essentials, communication, security tools, networking, productivity, operating systems and development. It also offers saved items stored on-device and a changelog of new entries.
SuspiciousPackage is a Linux, macOS, BSD, or Unix resource for tools, documentation, communities, or system workflows.
MailTrackerBlocker is an extension and plugin for Apple Mail on macOS that blocks email trackers, read receipts and spy pixels. It labels who is tracking you and strips spy pixels from HTML before display, so disabling remote content loading is unnecessary and images can be shown. Supported on macOS 14.3+ as an extension and macOS 10.11-13.x as a plugin.
KextViewr is a macOS utility that displays all currently loaded kernel modules (kexts), showing information such as collection, size, address and architecture. It offers a UI alternative to Apple's kmutil with filter, search and JSON export capabilities, and requires the com.apple.private.kernel.get-kext-info entitlement. Supported on macOS 11 and later.
Firejail is a SUID program for Linux that restricts the running environment of untrusted applications using Linux namespaces and seccomp-bpf. Written in C with almost no dependencies, it runs on Linux computers with a 3.x kernel or newer. It includes security profiles for many Linux programs, and commands can be prefixed with "firejail" to start a sandbox.
Lockdown Privacy offers a firewall and a Secure Tunnel VPN for blocking trackers, ads and badware in apps. The firewall is described as open source and on-device. The site states the products are Openly Operated and provide transparency into data handling. The listing covers iPhone, iPad and Mac.
Community notes
Be the first to share how this project worked for you.
Sign in with a verified account to leave a review or join the discussion.
Sign in to reviewKeep exploring
Awesome Privacy is a curated open source directory of privacy-respecting alternatives to everyday apps and services, organized into categories such as essentials, communication, security tools, networking, productivity, operating systems and development. It also offers saved items stored on-device and a changelog of new entries.
SuspiciousPackage is a Linux, macOS, BSD, or Unix resource for tools, documentation, communities, or system workflows.
MailTrackerBlocker is an extension and plugin for Apple Mail on macOS that blocks email trackers, read receipts and spy pixels. It labels who is tracking you and strips spy pixels from HTML before display, so disabling remote content loading is unnecessary and images can be shown. Supported on macOS 14.3+ as an extension and macOS 10.11-13.x as a plugin.
KextViewr is a macOS utility that displays all currently loaded kernel modules (kexts), showing information such as collection, size, address and architecture. It offers a UI alternative to Apple's kmutil with filter, search and JSON export capabilities, and requires the com.apple.private.kernel.get-kext-info entitlement. Supported on macOS 11 and later.
Firejail is a SUID program for Linux that restricts the running environment of untrusted applications using Linux namespaces and seccomp-bpf. Written in C with almost no dependencies, it runs on Linux computers with a 3.x kernel or newer. It includes security profiles for many Linux programs, and commands can be prefixed with "firejail" to start a sandbox.
Lockdown Privacy offers a firewall and a Secure Tunnel VPN for blocking trackers, ads and badware in apps. The firewall is described as open source and on-device. The site states the products are Openly Operated and provide transparency into data handling. The listing covers iPhone, iPad and Mac.
