Open-source alternatives to Fscan

kscan is a network security scanner and service fingerprinter used to discover active hosts and open ports. It functions as a network protocol analyzer and internal network mapper to identify reachable gateways and analyze the network surface area of target environments. The tool integrates external asset discovery by retrieving target hosts through external intelligence services and verifying their availability. It also operates as a credential brute force tool, testing authentication strength across multiple protocols using automated username and password dictionaries. The project covers n

This project is a comprehensive, community-curated directory of cybersecurity resources, tools, and educational materials. It functions as a centralized index for researchers and students to discover frameworks and utilities across the entire security lifecycle, ranging from initial vulnerability assessment to post-exploitation analysis. The repository distinguishes itself through a hierarchical taxonomy that organizes diverse security disciplines into a searchable, version-controlled knowledge base. Rather than hosting software directly, it utilizes a decentralized aggregation model that lin

Nettacker is an automated penetration testing framework designed to orchestrate reconnaissance, port scanning, and vulnerability detection. It functions as a network reconnaissance tool and vulnerability scanner that identifies open ports, fingerprints services, and checks systems against databases of known security flaws. The framework distinguishes itself by combining a web application crawler for discovering hidden paths via fuzzing with a vulnerability management system that persists scan results in a database to track historical assessments. It also includes specialized capabilities for

Strix is an automated security research and vulnerability scanning platform that leverages language models to orchestrate complex security analysis tasks. It functions as a comprehensive framework for penetration testing and continuous security integration, allowing users to embed automated vulnerability research directly into development pipelines or execute it within isolated, containerized environments. The platform distinguishes itself through a multi-agent orchestration engine that coordinates specialized autonomous agents to perform parallel security assessments. By integrating LLM-agno

reconftw is an attack surface management framework and reconnaissance workflow orchestrator designed to automate the discovery, mapping, and monitoring of external digital assets. It operates as a modular tool-chain pipeline that coordinates a sequence of security tools to perform intelligence gathering and vulnerability scanning. The project distinguishes itself through a cloud-native deployment model that parallelizes scanning workloads across a fleet of remote VPS instances to bypass local resource constraints. It utilizes container-based environment isolation to ensure consistent executio

RustScan is a high-speed network reconnaissance tool designed for automated port discovery and service enumeration. It functions as an automated vulnerability scanner that identifies open ports and active services across network environments, providing a foundation for mapping attack surfaces and gathering intelligence on target systems. The tool distinguishes itself through its ability to dynamically adjust scanning parameters and concurrency in real-time based on system feedback, ensuring efficient performance while preventing network congestion. It features an extensible architecture that

afrog is an HTTP vulnerability scanner and web vulnerability management system that identifies security flaws and known CVEs using a YAML-based rule engine. It functions as a payload generator and scanner, comparing server responses against detection rules to find unauthorized access points. The project provides a framework for out-of-band security testing, detecting blind vulnerabilities by triggering and verifying external DNS or HTTP callbacks. Beyond web traffic, it includes a protocol fuzzer capable of executing multi-step read and write sequences over raw TCP and SSL sockets to identify

Tsunami Security Scanner is a network vulnerability scanner and security auditor designed to identify high-severity flaws across network assets. It functions as an asynchronous security probe engine that utilizes automated probes and specialized detection logic to find critical weaknesses and prioritize remediation efforts. The project is distinguished by a plugin-based scanning engine, which uses a modular architecture of interchangeable detection plugins to identify vulnerabilities. This extensibility allows for the development and integration of custom security plugins to expand the variet

Maskphish is a comprehensive security toolkit that integrates capabilities for digital forensics, network vulnerability scanning, open-source intelligence, penetration testing, and social engineering. It functions as a multi-purpose framework for automating reconnaissance and executing security audits across diverse network environments. The project features a specialized phishing and social engineering toolkit used for cloning websites, masking URLs, and deploying deceptive pages to capture user credentials. It also includes a remote access Trojan builder for generating platform-specific exe

AllHackingTools is a security tool orchestrator and suite designed to install, update, and manage a wide array of third-party hacking and security utilities from a single command interface. It functions as a centralized hub for network analysis, open source intelligence, penetration testing, and social engineering tools. The project provides specialized frameworks for gathering open source intelligence and searching for user profiles across social platforms. It includes toolkits for network reconnaissance, vulnerability scanning, and the execution of security exploits, as well as a social eng

fsociety is a penetration testing framework and security tool orchestrator designed to conduct full security audits. It functions as a wrapper that integrates external security binaries into a unified, menu-driven interface, providing a centralized system for command-line parameter mapping and execution. The project distinguishes itself by organizing specialized utilities into domain-specific collections for structured navigation. It automates the transition between different phases of an audit by chaining reconnaissance and exploitation tools through sequential workflow automation. The fram

Wazuh is an integrated security platform that combines endpoint detection and response, security information and event management, and cloud workload protection. It functions as a centralized system for collecting telemetry, aggregating logs, and correlating events across distributed infrastructure to maintain security and integrity. The platform distinguishes itself through its active response orchestration, which allows for the automated execution of scripts on remote endpoints to neutralize threats in real time. It provides deep visibility into system activity through file integrity monito

Ethical-Hacking-Labs is a comprehensive cybersecurity training curriculum and lab suite designed for learning penetration testing, network analysis, and offensive security techniques. It provides a structured environment for practicing the full attack lifecycle, from initial reconnaissance and scanning to exploitation and post-compromise analysis. The project provides instructional materials and guided exercises that cover specific technical domains, including open source intelligence research and network security courseware. It includes a practical workbook for identifying system vulnerabili

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

RouterSploit is an embedded device exploitation framework and vulnerability scanner designed to identify and exploit security flaws in networked embedded hardware and firmware. It provides a centralized toolkit for scanning for known weaknesses and common misconfigurations to gain unauthorized system access. The framework includes an architecture-specific payload generator to create custom binary payloads tailored to the target hardware. It also features an automated brute force tool that uses dictionary-based credential guessing to bypass authentication on hardware devices. The tool covers

Rengine is an automated reconnaissance framework and vulnerability management platform designed for attack surface monitoring. It functions as a centralized hub for discovering subdomains and open ports, gathering open-source intelligence, and tracking security flaws across target networks. The system integrates large language models to analyze reconnaissance data and generate vulnerability descriptions and insights. It distinguishes itself through a plugin-based tool integration that wraps external security scanning binaries and a target mapping system that tracks changes to assets over time

PentestGPT is an autonomous security testing framework that leverages large language models to plan, execute, and coordinate end-to-end penetration testing engagements. By functioning as an autonomous agent, the system automates the entire testing lifecycle, from initial reconnaissance and vulnerability analysis to the generation of custom exploits and the execution of post-exploitation tasks. The platform distinguishes itself through a multi-agent orchestration system that coordinates specialized AI agents to collaborate on complex, multi-stage attack chains. It integrates multimodal context

This project is a comprehensive cybersecurity tool collection designed to support security research, penetration testing, and vulnerability assessment. It functions as a unified penetration testing suite, providing a centralized environment where professionals can access a wide range of offensive security utilities to identify system weaknesses and study attack vectors. The platform distinguishes itself through a modular architecture that aggregates disparate security scripts into a single, hierarchical command-line interface. It simplifies the management of these utilities by integrating ext

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

Gobuster is a command-line security utility designed for brute-force discovery of hidden infrastructure and content. It operates by systematically testing wordlists against target network services to identify files, directories, subdomains, and cloud storage buckets. The tool utilizes a concurrent worker pool to execute these requests in parallel, ensuring efficient scanning across various network environments. The project distinguishes itself through a modular plugin architecture that supports multiple discovery modes, including HTTP, DNS, and TFTP. This design allows for protocol-agnostic r

Wfuzz is a web application fuzzing framework that automates the injection of payloads into HTTP requests to discover hidden resources, parameters, and vulnerabilities. It functions as a content discovery scanner, a brute-force tool for credential guessing, and a plugin-based vulnerability scanner, all within a single modular system. The tool distinguishes itself through its plugin-based extensibility, allowing custom Python modules to add new payload sources, output printers, or scanning logic without modifying core code. It supports concurrent request dispatch using thread-based parallelism

Photon is a command-line web crawler designed for security reconnaissance and information gathering. It systematically traverses websites to discover URLs, map domain infrastructure, and identify associated subdomains by retrieving DNS records. The tool distinguishes itself through its ability to perform deep content analysis, including the extraction of sensitive data such as API keys and authentication tokens using user-defined regular expressions. It supports offline inspection by cloning crawled web content to the local filesystem, allowing for structural analysis without additional netwo

libhv is a high-performance C/C++ network library and event-driven I/O framework used to build TCP, UDP, SSL, HTTP, WebSocket, and MQTT clients and servers. It provides a non-blocking event loop for managing network sockets, timers, and system signals across multiple threads. The project is distinguished by its integrated support for specialized network roles, including a full HTTP web server with RESTful routing and middleware, an MQTT messaging client for IoT communication, and the ability to implement SOCKS5 and HTTP proxies. It also features a reliable UDP implementation to ensure ordered

Ladon is an internal network penetration scanner and vulnerability assessment tool designed to identify high-risk security flaws and assets across network segments. It operates as a fileless security scanner, executing its engine and modules directly in memory to avoid leaving a disk footprint on target systems. The project is distinguished by its integration as a plugin for command beacons, specifically within the Cobalt Strike framework. This allows for memory-resident network discovery and vulnerability detection. It further supports stealth operations through payload and script obfuscatio

dirsearch is a command-line security tool and web path scanner used for discovering hidden directories and files on web servers. It functions as a recursive directory fuzzer and brute-force utility that identifies undocumented paths and sensitive files using wordlists and HTTP status codes. The tool distinguishes itself through template-driven path generation and an automated HTTP response filter that uses status codes, content length, and regex patterns to isolate valid targets. It supports recursive directory crawling to map complex web structures and provides state-persistence serializatio

Vuls is an agentless vulnerability scanner and CVE intelligence aggregator. It identifies security flaws in operating systems, containers, and network devices without requiring the installation of permanent software agents on target machines. The project distinguishes itself by cross-referencing software versions against multiple vulnerability databases, security advisories, and known exploit catalogs. It utilizes platform-based enumeration and lockfile analysis to detect vulnerabilities in network hardware, programming libraries, and website plugins. The tool covers a broad range of securit

Nuclei-templates is a security automation framework and vulnerability scanning library designed for the continuous assessment of distributed infrastructure. It functions as a collection of structured configuration files that define how to identify security flaws and misconfigurations across web applications and network services. The project utilizes a declarative domain-specific language to decouple detection logic from the underlying execution engine. This approach allows for the creation of modular, protocol-agnostic scanning rules that can be updated independently of the core software. By