Essential utilities and tools to enhance your privacy and security. From Windows hardening to browser extensions, these tools complement privacy-focused services and operating systems.
Privacy tools are essential, but they're most effective when combined with:
Every tool has trade-offs:
Some tools provide false sense of security:
Privacy requires defense in depth:
Privacy landscape changes constantly:
Don't try to implement everything at once:
Free • Windows 10/11
The gold standard for Windows privacy hardening. Easy-to-use tool that disables telemetry, advertising, and unwanted features with recommended settings.
Free • Open Source • Windows 10/11
Comprehensive Windows debloater and privacy tool. Install programs, remove bloatware, apply tweaks, and harden Windows with one PowerShell script.
Free • Open Source • Windows 10/11
Privacy dashboard for Windows with clear interface. Disable telemetry, block Microsoft domains, manage Windows Defender, and control privacy settings.
Free • Open Source • Windows
Simple firewall for Windows that controls network access per application. Block Windows telemetry, apps phoning home, and unwanted connections.
Free • Windows 10/11
Comprehensive privacy tool for Windows 10 and 11. Disable tracking, telemetry, and unwanted features with detailed explanations of each setting.
Free/Paid • Windows/Android
Network monitoring and firewall. Visualize network activity, detect malware, block apps, and see everything phoning home. Free version available.
Free • Open Source • All Browsers
The best ad and tracker blocker. Blocks ads, trackers, malware domains, and reduces page load times. Essential browser extension.
Free • Open Source • Firefox/Chrome
Automatically uses HTTPS on supported sites. Note: Most modern browsers now have this built-in, but standalone extension provides more control.
Free • Open Source • Firefox/Chrome
Advanced content blocker with matrix-based firewall. Control scripts, frames, cookies per domain. For advanced users. (No longer maintained but still works)
Free • Open Source • All Browsers
Automatically learns to block invisible trackers. From EFF. Works alongside uBlock Origin for additional protection.
Free • Open Source • Firefox/Chrome
Automatically deletes cookies when tabs close. Whitelist sites you trust. Prevents tracking across browsing sessions.
Free • Open Source • Linux/Raspberry Pi
Network-wide ad and tracker blocking. DNS sinkhole that blocks ads, trackers, and malware for all devices on your network. Requires Raspberry Pi or Linux server.
Free • Open Source • Multi-platform
Network-wide ad and tracker blocking similar to Pi-hole. Modern interface, DNS-over-HTTPS/TLS support, parental controls. Alternative to Pi-hole.
Free • All Platforms
Fast, privacy-focused DNS resolver. Doesn't log your IP address. Apps available for all platforms with DNS-over-HTTPS/TLS support.
Free • Switzerland-based
Privacy-respecting DNS with malware blocking. Swiss jurisdiction, doesn't log IP addresses, blocks malicious domains. Good privacy alternative.
Free • Switzerland-based
Mullvad DNS is highly privacy-oriented, with no logging of DNS requests, servers running in RAM, and regular audits.
Free/Paid • Cloud-based
Customizable cloud DNS with ad/tracker blocking, threat protection, and parental controls. Free tier: 300k queries/month. Pi-hole in the cloud.
Free • Open Source • Windows/Mac/Linux
Powerful disk encryption software. Encrypt entire drives, create encrypted containers, or create hidden volumes. Successor to TrueCrypt.
Free • Open Source • All Platforms
Client-side encryption for cloud storage. Works with Dropbox, Google Drive, OneDrive. Encrypt files before uploading to cloud services.
Free • Open Source • All Platforms
Implementation of OpenPGP standard for encrypting and signing data. Essential for email encryption, file encryption, and verifying software.
Free • Open Source • Command Line
Modern file encryption tool. Simple, secure, and easy to use. Better alternative to GPG for file encryption. Command-line focused.
Paid Hardware • $25-$80
Hardware security key for two-factor authentication. Most secure 2FA method. Supports FIDO2, U2F, OTP, and more. Physical security.
Paid • $45 • macOS
Network monitor and firewall for Mac. See and control all network connections. Block apps from phoning home. Essential for Mac privacy.
Free • Open Source • macOS
Free firewall for macOS by Objective-See. Blocks unauthorized outgoing connections. Free alternative to Little Snitch with core features.
Free • Open Source • macOS
Scan for malware and persistent software. Shows what's running on your Mac. Detects malware and potentially unwanted programs. By Objective-See.
Free • Open Source • macOS
Monitors common persistence locations. Alerts when software installs persistence mechanisms. Prevents malware from persisting. By Objective-See.
Free • Documentation
Comprehensive guide to securing macOS. Terminal commands, privacy settings, hardening steps. Essential reading for Mac privacy.
Free • Shell Script
Automated hardening script for macOS. Disables telemetry, hardens settings, improves privacy with one command. Advanced users.
Free • Open Source • Android
App store exclusively for free and open source Android apps. No tracking, no ads, no Play Services required. Essential for privacy-focused Android users.
Free • Open Source • Android
Scans Android apps for embedded trackers and excessive permissions. Know what data any app collects before or after installing it.
Free • Open Source • Android
No-root firewall for Android using the local VPN slot. Block individual apps from accessing the internet. Simple, lightweight, effective.
Free • Open Source • Android
Monitor and block trackers inside your installed apps in real-time. See which companies are being contacted and block them per-app.
Free/Paid • Open Source • Android
System-wide ad and tracker blocker. Free version uses DNS blocking. Paid version adds a VPN. One of the most popular privacy apps on Android.
Free • Open Source • Android
Routes your Android traffic through the Tor network. Includes Orbot (Tor proxy), ObscuraCam (camera privacy), and Ripple (panic button).
Free • Open Source • Android
YouTube client without Google tracking. Watch videos, subscribe to channels, and download content — no Google account needed. Via F-Droid.
iOS's sandboxed environment limits third-party privacy tools compared to Android, but Apple's built-in privacy controls are genuinely strong. The focus on iOS should be configuration and the few effective tools that exist.
Free • iOS Built-in
Apple Advanced Data Protection extends end-to-end encryption to most of your iCloud data including backups and photos. Only your trusted devices hold the decryption keys, not Apple.
Free • Apple Documentation
On iOS, the built-in settings are your most powerful privacy tool: App Tracking Transparency, location controls, Private Relay, Mail Privacy Protection, and more. Configure these first.
Free/Paid(VPN) • Open Source
On-device firewall that blocks trackers, ad networks, and analytics without sending traffic to any external server. Audited and open source. It has a paid VPN, but there are better options for a VPN.
Free/Paid
DNS-based ad and tracker blocker for iOS. Free version provides solid blocking without a VPN. One of the better options available on the App Store.
Free/Paid
Safari content blocker and DNS-level tracker blocking. Free version is useful; Pro adds system-wide DNS filtering. Well-regarded and actively maintained.
Free • Open Source
The official Tor Project-endorsed browser for iOS. Browse over Tor for anonymity. Limitations vs. desktop Tor exist, but it's the best available on iOS.
Linux already provides significant privacy advantages over Windows and macOS. These tools go further by hardening your system, auditing it, and protecting your network activity.
Free • Open Source
Sandboxes Linux applications using namespaces and seccomp-bpf. Isolate browsers, media players, and other apps so they can't access the rest of your system.
Free • Open Source • Built-in
Mandatory access control systems built into the Linux kernel. AppArmor (Ubuntu/Debian) and SELinux (Fedora/RHEL) restrict what processes can access. Enable and configure these first.
Free • Open Source
Graphical interface for UFW (Uncomplicated Firewall). Easily manage incoming/outgoing firewall rules on Linux without touching the command line.
Free • Open Source
Application-level outbound firewall for Linux, inspired by Little Snitch for macOS. Get alerts when apps try to connect to the internet and allow or block per app.
Free • Open Source
Open source antivirus engine for Linux. Primarily useful for scanning files before sending to others on different platforms. Lightweight and scriptable.
Free • Open Source • Linux/Unix
Security auditing tool for Linux systems. Scans your configuration, identifies weaknesses, and provides a hardening report with actionable recommendations.
Free • Open Source • Linux (Live OS)
Privacy-focused Linux distribution that runs from a USB stick and leaves no trace. Routes all traffic through Tor. Designed for high-risk users.
Free • Open Source • Linux (VM)
Privacy-hardened OS designed to run inside a VM. Isolates your activities from your host OS and routes all traffic through Tor. Strong anonymity model.
Free • Open Source • All Platforms • Command Line
Remove or modify metadata from images, videos, and documents. Command-line tool for complete metadata control. Removiong metadata is essential for privacy.
Free • Open Source • Linux
Remove metadata from various file types. GUI and command-line interfaces. Supports images, PDFs, office documents, and more.
Free • Open Source • Windows
Windows-native GUI built on top of ExifTool, giving you get the full power of ExifTool without the command line.
Free • Open Source • Windows/Mac/Linux
Convert potentially dangerous documents to safe PDFs. Uses disposable containers to sanitize documents. From Freedom of the Press Foundation.
Free • Open Source • Linux
Securely redact and sanitize PDFs. Remove sensitive information permanently. Better than just blacking out text in PDF editors.
Free • Open Source • Android
Remove EXIF metadata from images on Android before sharing. Simple app to protect privacy in photos. GPS data removal.