Best OWASP Amass Alternatives & Competitors in 2026

ctlogs.dev

Fast Certificate Transparency search and JSON API for subdomain reconnaissance.

Aleph Search Clear

OSINT tool for mapping & monitoring risk ecosystems on Clear & Deep Web.

Cylana EASM

AI-powered EASM platform for digital asset discovery and monitoring.

SECWATCH Exposure Control

Human-validated external attack surface risk prioritization combining scanning

Driftnet Explore

Internet-wide scanning platform for discovering exposed devices, services

DorkSearch

Curated Google dork search tool for OSINT and web reconnaissance.

ZoomEye

ZoomEye is an advanced cyberspace search engine that provides detailed information on cyberspace assets, including server software and version information, for cybersecurity experts, researchers, and enterprises.

Findomain

A domain reconnaissance tool that automates subdomain discovery, port scanning, and monitoring with support for multiple data sources and notification integrations.

Majestic Million

Explore the top million websites, ranked by referring subnets, and gain insights into online influence and popularity.

Cloud_enum

Cloud_enum is a multi-cloud OSINT tool that enumerates publicly accessible resources across AWS, Azure, and Google Cloud platforms for security assessment purposes.

SpiderFoot

Automate OSINT for threat intelligence and attack surface mapping with SpiderFoot.

Sublist3r

Sublist3r is a python tool for enumerating subdomains using OSINT and various search engines.

python-builtwith

A Python API client for BuiltWith that enables programmatic access to website technology profiling and reconnaissance data.

ImmuniWeb® Discovery

ImmuniWeb Discovery is an attack surface management platform that continuously monitors an organization's external digital assets for security vulnerabilities, misconfigurations, and threats across domains, applications, cloud resources, and the dark web.

Searchlight Exposure – Exposure Management

ASM platform that scans external attack surfaces hourly for vulnerabilities

Cyber Exposure Manager

Cyber Exposure Manager: continuous visibility and remediation for external risk

Sn1per Professional 2026

Sn1per Professional 2026: automated penetration testing & attack surface management

Domain Beacon

Provide intelligence about a domain

Outpost24 External Attack Surface Management

Cloud platform for continuous visibility & mgmt of external attack surfaces

StrikeOne Attack Surfa

AI-powered attack surface management platform for cybersecurity monitoring

Hadrian Agentic AI

AI-powered platform for continuous attack surface discovery and pentesting

Microsoft Defender EASM

Discovers and monitors external-facing assets and vulnerabilities

Halo Security Attack Surface Management

External attack surface mgmt platform for discovering & monitoring assets

Assetnote ASM

External attack surface management platform with continuous asset discovery

CloudSEK Attack Surface Management

External attack surface management platform for discovering digital assets

Censys Internet Map

Internet intelligence platform for asset discovery and attack surface mapping

Risksurface

SaaS platform for attack surface management and vulnerability detection

QuimeraX External Attack Surface Management

EASM platform for continuous monitoring of internet-exposed assets & vulnerabilities

ThingsRecon Supply Chain Intelligence

Supply chain intelligence platform mapping digital ecosystems & proximity risks

Intruder Attack Surface Management

Attack surface mgmt platform with vuln scanning and cloud security features

RiskXchange Attack Surface Management

Attack surface management platform for monitoring vulnerabilities and breaches

Mandiant Attack Surface Management

Discovers and monitors external internet assets for exposures and vulnerabilities

Zerofox External Attack Surface Management

Discovers and manages internet-facing assets with vulnerability prioritization

Pentera Surface

External attack surface mgmt with automated pentesting and validation

SOC Radar DNS Monitoring

SOCRadar DNS Monitoring provides real-time monitoring of DNS infrastructure with automated discovery, record change alerts, and detection of DNS-based security threats.

SOC Radar Attack Surface Management

SOCRadar Attack Surface Management is an EASM platform that continuously discovers, monitors, and assesses internet-facing digital assets for vulnerabilities and security risks.

Matos Automated Attack Surface Management

Automated ASM tool for multi-cloud environments with continuous asset discovery

Synack Attack Surface Discovery

External attack surface mgmt with asset discovery and on-demand pentesting

Palo Alto Networks Cortex Xpanse

Active attack surface mgmt solution for discovering & remediating unknown risks

Censys Internet Intelligence Platform

Internet intelligence platform for asset discovery and threat analysis

Censys AI-Driven Solutions

AI-driven internet scanning platform for asset discovery and threat hunting

Team Cymru RADAR

Passive asset discovery platform using Netflow data for attack surface mapping

Akamai DNS Posture Management

DNS security posture management across multicloud and on-prem environments

Anomali Attack Surface Management

External attack surface management platform for asset discovery and vuln mgmt

Siemba EASM

AI-driven EASM platform for discovering and monitoring external-facing assets

CyberXTron ShadowSpot

External attack surface management platform for asset discovery and risk detection