Best BlackWidow Alternatives & Competitors in 2026

DNSAudit.io

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

OpenDoor

Open-source CLI platform for web recon, dir discovery & subdomain enum.

LinksDumper

LinksDumper extracts links and endpoints from HTTP responses to support web application security testing and reconnaissance activities.

Yasuo

A Ruby script that scans networks for vulnerable third-party web applications and front-ends with known exploitable security flaws.

Honggfuzz

A multi-threaded, feedback-driven evolutionary fuzzer that uses low-level process monitoring to discover security vulnerabilities in software applications.

OneFuzz

OneFuzz is a self-hosted Fuzzing-As-A-Service platform developed by Microsoft that enables continuous developer-driven security testing through automated fuzzing capabilities.

Recog

A recognition framework for identifying products, services, operating systems, and hardware by matching fingerprints against network probes.

Golismero

A free and open-source OSINT framework for gathering and analyzing data from various sources

Naabu

A fast and reliable port scanner written in Go, designed for attack surface discovery in bug bounties and penetration testing.

sandmap

A CLI tool that enhances Nmap with 31 modules containing 459 scan profiles for streamlined network reconnaissance and security assessments.

FingerprintX

FingerprintX is a standalone utility for service discovery on open ports.

Filebuster

A fast and flexible web fuzzer for identifying vulnerabilities in web applications

crawley

A Go-based web crawler that supports multiple protocols and authentication methods for systematic web resource discovery and collection.

getJS

A tool to quickly get all JavaScript sources/files

Fuzzilli

Fuzzilli is a JavaScript engine fuzzer that helps identify vulnerabilities in JavaScript engines.

Injectus

A CRLF and open redirect fuzzer

Razzer

A Kernel fuzzer focusing on race bugs

XSStrike

A powerful tool for identifying and exploiting Cross-Site Scripting (XSS) vulnerabilities.

kicks3

A security tool for discovering S3 bucket references in web content and testing buckets for misconfigurations.

cariddi

An automated reconnaissance tool that crawls domains to discover URLs and scan for exposed secrets, API keys, and sensitive files during security assessments.

RoboShadow OWASP ZAP Vulnerability Scanner

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

Jsmon 2.0

JavaScript security scanner for detecting vulnerabilities in third-party scripts

Aikido EOL Scanner

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

Sucuri Website Malware Scanner

Website malware scanner with remote & server-side scanning capabilities

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

CHEQ Form Guard

Protects web forms from bots and fake users to prevent junk leads

CyberChecker

Automated web vulnerability scanner with 60+ security checks

Verisys Antivirus API

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

Perisai Web Scanner

Automated web scanner detecting vulnerabilities and HTTP security headers

Email Security Test by ImmuniWeb

A free online tool that tests email server security by evaluating server configurations

Website Privacy Test

Website privacy and security testing tool for cookie and third-party analysis

ImmuniWeb SSL Test

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

Bitdefender Link Checker

Free URL scanner that checks links for malware, phishing, and fraud threats

RoboShadow Mobile Network Scanner

Android app for scanning networks to identify security vulnerabilities

Guardian360 Quickscan WP Plugin

WordPress plugin for website security scanning via the Guardian360 API.

Cloudmersive Virus Scan

Cloud-based virus scan APIs for securing files, URLs, and content uploads with advanced anti-virus and malware scanning capabilities.

NMAP

Nmap is an essential network scanning tool used for network security auditing and status monitoring.

Dnscan

Dnscan is a DNS reconnaissance tool that performs DNS scans, DNS cache snooping, and DNS amplification attack detection.

Pagodo

Automate Google Hacking Database scraping and searching with Pagodo, a tool for finding vulnerabilities and sensitive information.

S3Scanner

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

Spoofcheck

Simple script to check a domain's email protections and identify vulnerabilities.

KICS

KICS is an open-source Infrastructure as Code security scanner that detects vulnerabilities and misconfigurations through customizable queries and integrates with CI/CD pipelines.

RustScan

Fast, smart, effective port scanner with extensive extendability and adaptive learning.

check-my-headers

A Node.js tool that analyzes HTTP security headers on websites to identify missing or problematic security configurations.

Nipper-ng

A next-generation network scanner for identifying security configuration weaknesses in devices like routers, firewalls, and switches.

ssh-audit by arthepsy

A tool for SSH server auditing with comprehensive analysis capabilities.

CryptoLyzer

CryptoLyzer is a cryptographic protocol analyzer that examines TLS, SSL, SSH, and DNSSEC server implementations with fingerprinting capabilities and multiple output formats.