Best ProjectDiscovery Nuclei Alternatives & Competitors in 2026

RoboShadow OWASP ZAP Vulnerability Scanner

Web app & network vulnerability scanner integrating OWASP ZAP, Shodan & Nmap

RoboShadow Mobile Network Scanner

Android app for scanning networks to identify security vulnerabilities

ThreatDown Patch Management

Automated patch management software for fixing software vulnerabilities

AppCheck Infrastructure Scanner

Infrastructure vulnerability scanner for networks, data centers, and cloud

AppCheck CMS Security Scanning

CMS security scanner with DAST capabilities for web apps and infrastructure

Halo Security Server Scanning

External server vulnerability scanning for CVEs, patches, and misconfigurations

ConnectSecure Operating System Patching

Automated OS patching for Windows and Mac systems with scheduling

Internacious Website and Email Security Scan

Web and email security scanner that checks 16 critical security points in 60 seconds

Sansec eComscan

Ecommerce malware & vulnerability scanner for Magento, Adobe Commerce & more

Sec1 WPFort WordPress Security Scanner

WordPress vulnerability scanner that detects security issues and malware

SecPod Saner Patch Management

Automated patch management solution for enterprise systems

Glitchward Lightweight Agent-Based Monitoring

Agent-based server security monitoring with vulnerability and compliance scanning

Rebasoft Secure Configuration

Checks device config settings against standards to detect misconfigurations

Kevlar System Inspector

Scans embedded Linux systems for security design vulnerabilities

Sårbarhetsskanning

External vulnerability scanning tool for websites and web applications

CredShields SolidityScan

AI-powered smart contract vulnerability scanner for Solidity code

CyberChecker

Automated web vulnerability scanner with 60+ security checks

Carson & SAINT ASV

PCI DSS-certified ASV scanning service for payment card compliance.

DNSAudit.io

Free DNS security scanner that checks domains for misconfigs and exposure.

Perisai Web Scanner

Automated web scanner detecting vulnerabilities and HTTP security headers

Guardian360 Quickscan WP Plugin

WordPress plugin for website security scanning via the Guardian360 API.

ssh-audit by jtesta

ssh-audit is a Python-based tool for auditing SSH server and client configurations to identify security weaknesses and ensure compliance with best practices.

ArmourZero Automated Vulnerability Management

AI-powered automated vuln scanning for apps, APIs, domains, and cloud

iScan Advanced Scanning Tool

Scans repositories for exposed secrets, API keys, and credentials for bug bounty

Sucuri Website Malware Scanner

Website malware scanner with remote & server-side scanning capabilities

Armis Vulnerability Intelligence Database

AI-powered vulnerability intelligence database with real-time threat context

ZeroPath IaC

IaC security scanner with 500+ policies for cloud infrastructure misconfigurations

weSecretFinder

A Python script that scans file systems to identify hardcoded credentials

Aikido EOL Scanner

Detects end-of-life and outdated software in code and containers

Aqua Security Vulnerability Management

Scans artifacts across SDLC for vulnerabilities, malware, secrets & misconfigs

ZeroThreat Intelligent Vulnerability Scanner

AI-powered vulnerability scanner for web apps and APIs

Intruder Automated SQL Injection Scanner

Automated scanner for SQL injection and web app vulnerabilities

Intruder XSS Scanner

XSS vulnerability scanner for web apps and APIs with automated scanning

CyCognito Active Security Testing

Automated active security testing platform for external attack surfaces

SaltyCloud Dorkbot

Automated web vulnerability scanner for SQLi, XSS, and other web app flaws

Kaseya Network Assessment Tool

Cloud-based network assessment tool with automated scanning and reporting

SiteLock Basic

Website security scanning and backup service for personal sites and blogs

Corgea Auto-Triage

AI-driven vulnerability triage that reduces false positives & prioritizes fixes

HackerGuardian PCI Scanning Solutions

PCI DSS compliance scanning solution for payment card data systems

CredShields Smart Contract Audits

Smart contract audit service combining AI scanning and manual code review

Safety Vulnerability Database

Proprietary Python vulnerability DB with AI detection & expert verification.

AutoCrypt CSTP Fuzzer

Automotive fuzz testing tool for ECU vulnerability detection per UN R155/ISO 21434.

Verisys Antivirus API

REST API service for scanning files/URLs for malware, viruses & NSFW content.

ImmuniWeb SSL Test

AI-powered platform for SSL/TLS security testing and compliance assessment

ImmuniWeb® AI Platform

AI-powered web security testing platform for vulnerability and compliance scanning

Aqua Trivy

Open source vulnerability & IaC scanner for containers & cloud native apps

Beagle Security SSL Certificate Checker

Checks SSL certificate expiry dates and sends email notifications

S3Scanner

S3Scanner is an open-source tool that scans S3 buckets across S3-compatible APIs to identify misconfigurations and security vulnerabilities.