Best OWASP Amass Alternatives & Competitors in 2026

ctlogs.dev

Fast Certificate Transparency search and JSON API for subdomain reconnaissance.

Aleph Search

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

Driftnet Explore

Internet-wide scanning platform for discovering exposed devices, services

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.

Cylana EASM

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

SECWATCH Exposure Control

Human-validated external attack surface risk prioritization combining scanning

DorkSearch

Curated Google dork search tool for OSINT and web reconnaissance.

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.

Findomain

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

python-builtwith

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

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 Attack Surface Management

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

RiskXchange Attack Surface Management

Attack surface management platform for monitoring vulnerabilities and breaches

Zerofox External Attack Surface Management

Discovers and manages internet-facing assets with vulnerability prioritization

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.

Pentera Surface

External attack surface mgmt with automated pentesting and validation

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

Team Cymru RADAR

Passive asset discovery platform using Netflow data for attack surface mapping

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

Axur Unified EASM + CTI

EASM platform with integrated CTI for asset discovery and vulnerability mgmt

Cytrusst: Attack Surface Management (ASM)

Cytrusst ASM is an attack surface management product that helps discover an organization's

Wallarm API Attack Surface Management

Agentless API attack surface discovery and vulnerability detection platform

GoSecure Titan® Attack Surface Management

Discovers, monitors, and assesses external attack surface assets continuously.

NetSPI External Attack Surface Management (EASM)

Continuous discovery, monitoring, and testing of external assets and exposures

Orpheus External Attack Surface Management

EASM platform with continuous asset discovery and threat intelligence context

Trickest ASM - Attack Surface Management

Customizable ASM platform for asset discovery, monitoring, and enrichment

Criminal IP Security Scanning Service

Internet-connected asset search engine with vulnerability scanning capabilities

CyCognito Contextualization

Attack surface asset classification and contextualization platform

CyCognito Remediation

External attack surface mgmt platform with remediation acceleration features

CyCognito Platform

EASM platform with automated security testing and risk prioritization