Alternatives to Nessus

Advanced vulnerability scanner that identifies security weaknesses on your network and helps prioritize remediation

Privacy Badger

Program license: Free

Chrome extension that stops websites from tracking personal information

Folder Password Lock Pro

Program license: Trial version

Protect your crucial files via this tough-to-crack software

IObit Malware Fighter

Program license: Free

Removes and protects computers from harmful Malware

Privacy Drive

Program license: Trial version

Industry standard drive encryption tool that also includes other tools

DuckDuckGo Privacy Essentials (Chrome)

Program license: Free

Safeguard your online privacy with robust protection against tracking and ads in one simple add-on

Epic Privacy Browser

Program license: Free

Hidden Reflex browser designed specifically to protect internet privacy

Privacy Eraser Free

Program license: Free

Privacy protection software that cleans unneeded sensitive data

UltraSurf Security, Privacy & Unblock VPN

Program license: Free

Ensures secure and anonymous web browsing with robust privacy and unrestricted access

Snort

Program license: Full

Powerful open-source intrusion detection tool that monitors network traffic and alerts against suspicious activity

NetScanTools

Program license: Trial version

Comprehensive toolkit for scanning, troubleshooting, and analyzing network devices and connections

Nmap

Program license: Free

Network mapping and security scanning tool for all major operating systems

Acunetix Web Vulnerability Scanner

Program license: Trial version

Scan personal or professional sites to determine how vulnerable they are to hackers and malware

GFI LanGuard Network Security Scanner

Program license: Trial version

Comprehensive network scanner that detects vulnerabilities, manages patches, and visualizes overall security posture

GlassWire

Program license: Free

Firewall and monitoring tool for quickly identifying threats on a network

Shadow Security Scanner

Program license: Trial version

Safely scan any physical document to any computer with this software installed

Sygate Personal Firewall

Program license: Free

Block any unwanted cookies or unwanted third parties from invading your privacy

WiFi Hotspot Scanner

Program license: Free

Finds public wireless access points anywhere you go

Windows Vulnerability Scanner

Program license: Free

Identify and analyze security weaknesses in your system before they are exploited by threats

X-Lizard Password Generator

Program license: Free

Create secure, customizable passwords with high encryption standards

Genius

Program license: Free

Find lyrics for almost any song that has been written

Device Seizure

Program license: Trial version

Effortlessly extract and analyze data from electronic devices for comprehensive forensic investigations

Hyper Crypt

Program license: Free

A straightforward tool for encrypting files, generating passwords, and creating hashes

TCP Spy .Net

Program license: Free

Monitor and decode TCP traffic in real time to troubleshoot and optimize network connections

Iris Network Traffic Analyzer

Program license: Trial version

Track and analyze network traffic with real-time insights and detailed reporting

Sage

Program license: Free

Comprehensive open-source software ideal for advanced mathematical studies and research

Gpg4win

Program license: Free

Encrypt and sign emails and files with strong, user-friendly open-source security tools

IP Sniffer

Program license: Free

Helps users to rebuild and traffic their HTTP files

Amazing Free Zip Password Recovery

Program license: Free

Restore access to encrypted ZIP archives using powerful recovery techniques with a straightforward interface

HWiNFO

Program license: Free

Provides detailed monitoring and analysis of computer hardware components with customizable reports and comprehensive system insights

Ophcrack

Program license: Free

Crack Windows passwords with this powerful application

GEO Spider

Program license: Trial version

Visualize and track live network connections worldwide with interactive geographic maps and detailed statistics

Photobucket

Program license: Free

Convenient image-sharing tool that lets you keep your shared files safe and secure

Metasploit Framework

Program license: Free

Comprehensive toolkit for penetration testing and security assessments

Microsoft Baseline Security Analyzer

Program license: Free

Scan your system for missing updates and common vulnerabilities to strengthen overall security posture