Open-source alternatives to Aquatone

Gowitness is a system for rendering web interfaces at scale to capture visual snapshots, HTTP metadata, and network scan results. It functions as a headless browser screenshot tool and a web surface mapper used to identify and visually document the attack surface of network ranges and URL lists. The tool includes a screenshot gallery server that provides a web-based interface for browsing, filtering, and managing a database of captures. It specifically serves as an Nmap target visualizer, parsing network scan results to automatically capture screenshots of discovered web services. Capabiliti

RustScan is a high-speed TCP network scanner written in Rust, designed for security reconnaissance and network mapping. It functions as an automated port discovery engine that identifies open ports on remote hosts using IPv6 addresses, CIDR ranges, or bulk input files. The tool is built for rapid surface area discovery, utilizing parallel port processing and OS-aware performance optimizations to identify active services. It allows for scan precision tuning through adjustable connection timeout thresholds and concurrent request controls to balance speed and accuracy. The system integrates wit

Amass is a network attack surface mapper and reconnaissance framework designed to discover and map the external, internet-facing infrastructure of a target organization. It functions as an open source intelligence tool that identifies public network boundaries and locates hidden or forgotten subdomains to define an organization's total reachable footprint. The project utilizes passive-source data aggregation from external APIs and public databases alongside active DNS brute-forcing and recursive subdomain expansion. It employs a graph-based asset mapping system to visualize the relationships

recon-ng is an open source intelligence reconnaissance framework designed to automate the collection and aggregation of public information. It is a modular intelligence tool that utilizes a system of pluggable modules to harvest target data, resolve DNS queries, and parse web content. The framework is built as an API-driven tool with a programmatic interface to integrate with other security workflows. It is provided as a containerized application, using Docker to ensure a consistent environment for running reconnaissance tasks and managing a persistent data store. Its capabilities cover exte

A DNS meta-query spider that enumerates DNS records, and subdomains.

theHarvester is a command-line utility designed for gathering open-source intelligence and mapping an organization's external attack surface. It functions as a security information gathering framework that automates the collection of publicly available data to assist in reconnaissance and threat analysis. The tool utilizes a plugin-based architecture to execute isolated queries against various search engines and public databases. It employs asynchronous task execution to run multiple discovery operations in parallel, while a centralized pipeline aggregates and deduplicates findings from these

Masscan is a command-line network scanner designed for large-scale discovery and infrastructure reconnaissance. It identifies open ports across specific network segments or the entire internet by probing vast address ranges with high efficiency. The tool functions as an asynchronous packet engine, bypassing standard operating system kernel networking stacks to transmit raw packets directly from application memory. The project distinguishes itself through a specialized architecture that manages millions of concurrent connections by separating packet transmission and reception into independent

This project is a comprehensive command-line reference and toolkit designed for Linux system administration and network security assessment. It provides a collection of technical snippets and operational guides focused on managing remote environments, orchestrating shell sessions, and executing administrative tasks through native terminal utilities. The repository distinguishes itself by offering specialized techniques for stealthy operations and infrastructure manipulation. It covers methods for establishing encrypted tunnels to bypass firewalls, obfuscating process identities and command hi

Subfinder is a security reconnaissance framework designed for subdomain enumeration and attack surface management. It functions as a discovery engine that identifies and maps internet-exposed infrastructure, cloud-hosted assets, and network ranges to maintain a comprehensive inventory of an organization's digital footprint. The project distinguishes itself through a modular, template-driven scanning engine that executes security checks against discovered assets. It leverages cloud-native asset discovery to query provider APIs and infrastructure metadata, while supporting distributed agent orc

Allure is a test reporting framework that normalizes execution data from multiple test frameworks across different programming languages into a common intermediate format. It aggregates results from multiple sources into a shared directory of JSON files and generates self-contained HTML reports through a modular plugin pipeline. The architecture includes a hierarchical step tree model to represent test execution, metadata annotation injection to enrich results at runtime, and directory-watch incremental rendering that regenerates reports in real time as new data arrives. Unlike generic report

Findomain is a subdomain enumeration and infrastructure analysis tool designed for attack surface mapping. It functions as a DNS reconnaissance suite that discovers subdomains using multiple data sources and API keys to identify the full extent of a target network. The system acts as an attack surface monitor by tracking subdomain changes over time and sending real-time alerts via webhooks when new assets are detected. It includes specialized capabilities for detecting DNS wildcards to filter false positives and resolving subdomain IPs through parallel resolution. The tool provides a workflo

WhatWeb is a web application fingerprinting tool that identifies the technology stack powering a website by scanning HTTP responses and page content. It matches responses against a library of over 1800 signatures to detect CMS platforms, JavaScript libraries, web servers, embedded devices, and third-party addons, while also extracting technical metadata such as software versions, user accounts, and module names. The tool operates through a plugin-based detection framework that supports both passive and aggressive scanning modes. Passive plugins analyze existing HTTP headers and page content w

Arjun is an HTTP parameter discovery tool that identifies valid parameters on web endpoints by testing large dictionaries of parameter names against target URLs. It systematically probes endpoints using GET, POST, JSON, and XML request formats to find which parameters the server accepts, and can detect parameters whose values appear reflected in the response body. The tool distinguishes itself through its multi-method scanning approach, passive parameter collection from public archives like OTX and CommonCrawl, and its ability to detect value-sensitive parameters that only trigger a response

testssl.sh is a suite of diagnostic tools and a network security auditor used to scan network ports for supported encryption protocols, ciphers, and vulnerabilities in TLS and SSL configurations. It functions as a security scanner that evaluates the cryptographic strength of a server by testing all available cipher suites. The tool analyzes server encryption strength and identifies security vulnerabilities or weak settings through TLS and SSL security auditing. It verifies that encryption is properly implemented on specific network ports and evaluates whether only strong and modern encryption

Knock is an attack surface management tool and DNS reconnaissance framework used for discovering and mapping an organization's external infrastructure. It functions as a subdomain enumeration tool and HTTP security scanner to identify reachable hosts and organizational assets. The project distinguishes itself by using a passive-active hybrid enumeration strategy, combining external API lookups with active wordlist brute-force attacks and DNS zone transfers. It includes a multi-stage validation pipeline that detects DNS wildcard records and verifies host connectivity to filter out false positi

dnsenum is a perl script that enumerates DNS information

BeEF is a modular security testing environment designed for browser exploitation and web application auditing. It functions as a platform for security professionals to evaluate client-side defenses by injecting persistent scripts into web browsers, establishing a bidirectional communication channel for remote command execution and data exfiltration. The framework distinguishes itself through its ability to use compromised browser sessions as proxies to conduct internal network reconnaissance, effectively bypassing perimeter security controls. It utilizes an event-driven control interface and

DNS Enumeration Script

Generates permutations, alterations and mutations of subdomains and then resolves them

A Security Tool for Enumerating WebSockets

👊OneForAll是一款功能强大的子域收集工具 📝English Document

A Powerful Subdomain Takeover Tool

Web Inventory tool, takes screenshots of webpages using Pyppeteer (headless Chrome/Chromium) and provides some extra bells & whistles to make life easier.

Amass is an attack surface management tool designed to identify, map, and inventory an organization's internet-facing digital assets. It functions as a security asset discovery engine that systematically expands an organization's known infrastructure footprint through recursive domain name resolution and the collection of intelligence from diverse public data sources. The platform distinguishes itself by utilizing a graph-based modeling approach to organize discovered resources. By maintaining a persistent graph database, it tracks the relationships between infrastructure components and norma

This project is a comprehensive, community-sourced knowledge base designed for security professionals and researchers. It functions as a centralized repository of offensive security techniques, providing a structured collection of exploit payloads, attack vectors, and methodologies for conducting vulnerability assessments and penetration testing. The repository distinguishes itself through a cross-platform payload taxonomy that categorizes exploitation methods by vulnerability type and target environment, enabling rapid lookup during security assessments. It maintains high standards of data i