The Best Security Onion Solutions Alternatives in 2026

Find and compare cybersecurity products across areas such as SIEM, endpoint security, identity, and cloud.

Wazuh monitors systems and detects threats through an open source security platform for organizations.

SSL Labs provides tools for testing SSL and TLS configurations and related public key infrastructure.

DNSDumpster searches domain records and related hosts for domain research and reconnaissance.

IPv6 Leak Test checks whether a device has IPv6 connectivity and displays connection information related to privacy.

Zeek analyzes network activity through an open source monitor with a flexible scripting language.

Kismet monitors and captures Wi-Fi network traffic, with wireless intrusion detection and wardriving features.

This GitHub list collects books, guidelines, blogs, videos, tools, and cases related to CI/CD security.

This GitHub list curates GPT agents designed for cybersecurity work and related security tasks.

Snyk CLI scans and monitors software projects for security vulnerabilities.

GoPlus offers Web3 security tools including audits, APIs, a user security hub, and a browser extension.

Use Metasploit to find security issues, verify mitigations, and manage authorized penetration testing assessments.

The Snyk Security Database provides vulnerability details and remediation guidance for packages and cloud configurations.

Discover hosts and map networks with Nmap, a network exploration and security scanning tool.

Threat Radar displays current cyber threat intelligence on a live map, showing security activity from its data sources.

Use community-sourced threat intelligence and blocklists from CrowdSec to support security operations.

Test HTTP security headers such as CSP and HSTS, then review recommendations for improving a site.

Snyk helps software teams identify and manage security risks in code and dependencies while building AI-enabled applications.

Asymmetric Research provides security partnerships for L1 and L2 blockchains and DeFi protocols, including engineering and threat-response work.

unblob extracts files from complex binary blobs and firmware images, supporting security analysis of embedded software.

Rawsec’s CyberSecurity Inventory catalogs more than 1,700 security tools and resources, helping practitioners browse a curated cybersecurity reference.

CertAlert is named as a security tool, but the supplied page gives no details about its function.

IBM X-Force Exchange is a threat intelligence sharing platform for researching security indicators and emerging threats.

CyberSources curates more than 540 cybersecurity tools, with the project emphasizing ethical security resources.