Cybersecurity Tools for Windows

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Browse free open source Cybersecurity tools and projects for Windows below. Use the toggles on the left to filter open source Cybersecurity tools by OS, license, language, programming language, and project status.

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  • 1
    Ghidra

    Ghidra

    Ghidra is a software reverse engineering (SRE) framework

    Ghidra is a free and open-source reverse engineering framework developed by the NSA for analyzing compiled software. It supports a wide array of instruction sets and executable formats, offering features such as decompilation, disassembly, scripting, and interactive graphing. Designed for security researchers and analysts, Ghidra provides a robust environment for understanding malware, auditing code, and performing software forensics. It includes both GUI-based and headless analysis modes.
    Downloads: 79,134 This Week
    Last Update:
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  • 2
    Maigret

    Maigret

    Collect a dossier on a person by username from thousands of sites

    Maigret is an open-source OSINT tool designed to collect a dossier on a person by username from thousands of sites. It automates the process of checking for a user's presence across various platforms, aiding in digital investigations.​
    Downloads: 72 This Week
    Last Update:
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  • 3
    Greenplum Database

    Greenplum Database

    Massive parallel data platform for analytics, machine learning and AI

    Rapidly create and deploy models for complex applications in cybersecurity, predictive maintenance, risk management, fraud detection, and many other areas. With its unique cost-based query optimizer designed for large-scale data workloads, Greenplum scales interactive and batch-mode analytics to large datasets in the petabytes without degrading query performance and throughput. Based on PostgreSQL, Greenplum provides you with more control over the software you deploy, reducing vendor lock-in, and allowing open influence on product direction. Greenplum reduces data silos by providing you with a single, scale-out environment for converging analytic and operational workloads, like streaming ingestion. All major Greenplum contributions are part of the Greenplum Database project and share the same database core, including the MPP architecture, analytical interfaces, and security capabilities.
    Downloads: 18 This Week
    Last Update:
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  • 4
    SafeLine

    SafeLine

    Serve as a reverse proxy to protect your web services from attacks

    SafeLine is a self-hosted WAF(Web Application Firewall) to protect your web apps from attacks and exploits. A web application firewall helps protect web apps by filtering and monitoring HTTP traffic between a web application and the Internet. It typically protects web apps from attacks such as SQL injection, XSS, code injection, os command injection, CRLF injection, LDAP injection, XPath injection, RCE, XXE, SSRF, path traversal, backdoor, brute force, HTTP-flood, bot abuse, among others. By deploying a WAF in front of a web application, a shield is placed between the web application and the Internet. While a proxy server protects a client machine’s identity by using an intermediary, a WAF is a type of reverse-proxy, protecting the server from exposure by having clients pass through the WAF before reaching the server. A WAF protects your web apps by filtering, monitoring, and blocking any malicious HTTP/S traffic traveling to the web application.
    Downloads: 9 This Week
    Last Update:
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  • 5
    cyborghawk v1.1

    cyborghawk v1.1

    Latest-v1.1 of The World's most advanced pen testing distribution ever

    updated version of The most advanced, powerful and yet beautiful penetration testing distribution ever created.Lined up with ultimate collection of tools for pro Ethical Hackers and Cyber Security Experts. Simplify security in your IT infrastructure with Cyborg. Its real strength comes from the understanding that a tester requires a strong and efficient system,that benefits from a strong selection of tools, integrated with a stable linux environment.
    Downloads: 52 This Week
    Last Update:
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  • 6
    Watcher

    Watcher

    Open Source Cybersecurity Threat Hunting Platform

    Watcher is a file integrity monitoring tool that detects unauthorized changes to files, helping organizations maintain compliance and security.
    Downloads: 7 This Week
    Last Update:
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  • 7
    Discord Token & Message Spammer

    Discord Token & Message Spammer

    best open source discord spammer (token-webhook&more)

    easy to use, set the tokens & channels and have fun, don't use it in a bad way if you catch my drift, if you want to use it you better use a vpn so discord won't ban you're ip smh. DMS version 0.5 u can get the src files via : https://sourceforge.net/projects/discord-message-spammer/files/ https://github.com/p3hv https://6-g.itch.io/ ill keep updating this tool for sure usage: stress test ur discord server, using you're bots to stop the spammers tags: discord token spammer, discord raid tool, discord , discord tool discord tokens, chat spammer license By downloading this, you agree to the Commons Clause license and that you're not allowed to sell this repository or any code from this repository. For more info see https://commonsclause.com/.
    Downloads: 55 This Week
    Last Update:
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  • 8
    Full Stack Computer Scanner

    Full Stack Computer Scanner

    Scans for Windows computer system integrity

    Full Stack Computer Scanner is a read-only Windows security diagnostics tool designed for system awareness. It runs fully offline, uses no ads, no accounts, and no data collection. It complements traditional antivirus tools by helping users assess computer system integrity. Only official binaries distributed through this SourceForge project are legitimate. Keith (KCJ Tech Solutions) brings 30+ years of IT experience. If you are unsure whether your system is secure, you can contact: fullstackcomputerscanner@gmail.com. Windows computer security check sessions are available by chat only (21+), with no remote access: 20 min: $40. 40 min: $80. The free version is limited. To unlock the full developer build with 100 scans, you can make a $100 USD developer donation, then email the receipt number as text to fullstackcomputerscanner@gmail.com. CashApp: $computersafety Venmo: @computersafety The latest build will be provided within 24 hours.
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    Downloads: 9 This Week
    Last Update:
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  • 9

    usb-guard

    Turn any USB flash drive into a master key for your PC

    USB Guard is an advanced workstation security solution for Windows that turns USB drives into physical authentication keys using native Windows Kernel APIs. - Zero-Trust Security: Validates unique hardware serial numbers through direct Kernel API calls, ensuring only authorized USB drives can unlock your PC. - Brute-Force Protection: Exponential delay penalties after failed unlock attempts prevent automated attacks. - High-Fidelity Lock Screen: Glassmorphism aesthetics with GPU-accelerated blur effects that blend seamlessly with your desktop wallpaper. - System Integration: Auto-mutes volume when locked, persists via Windows Registry, and covers all connected monitors. - Master Recovery Key: Exportable backup codes ensure you never get permanently locked out. - Lightweight: Runs efficiently using direct native APIs instead of heavy middleware, keeping resource usage minimal. Built with .NET 10, WPF, and Fluent Design. Open source under MIT License.
    Downloads: 34 This Week
    Last Update:
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  • 10
    SCADA-LTS

    SCADA-LTS

    A comprehensive Supervisory Control, Data Acquisition, and Execution

    SCADA-LTS is an advanced FOSS, web-based, multi-platform environment designed to build your own Supervisory Control, Data Acquisition, and Management Execution Software - SCADA/MES. Its architecture provides a robust foundation for complex industrial automation and monitoring. Optimized for Smart Infrastructure, it is highly capable of managing industrial PV/BESS, Smart buildings, municipal Water networks or Wastewater treatment, ANPR telemetry, City-wide lighting, and other diverse data administration workflows. Beyond standard use, SCADA-LTS serves as a secure "independent source of truth" in sandboxed or zero-trust environments. It enhances critical infrastructure with cyber-alarm functionality, emergency operation scenarios, and vital operational visibility. Developed since 2015 on behalf of Abil'I.T. and supported by a global community, the project focuses on stability, security, and modernizing the codebase to meet the demands of industry, defense, and wide-area distributed
    Downloads: 15 This Week
    Last Update:
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  • 11
    pyWhat

    pyWhat

    Identify emails, IP addresses, and more

    pyWhat is a Python-based identification tool designed to figure out “what” a piece of text or file content represents, especially in security and OSINT workflows. Given inputs such as hex strings, URLs, email addresses, IP addresses, credit card numbers, cryptocurrency wallets, or entire .pcap capture files, it scans for structured patterns and tells you what it finds. The tool is recursive: it can traverse files and directories to extract meaningful entities, which is useful when analyzing malware samples, network captures, or code repositories at scale. It offers powerful filters called “tags” and distributions that let you narrow results to specific categories like bug bounties, cryptocurrencies, or AWS-related artifacts. For automation and integration, pyWhat provides a CLI with options for rarity filtering, sorting, and JSON export, as well as an API that can be imported into other Python programs.
    Downloads: 1 This Week
    Last Update:
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  • 12
    cyborg hawk v 1.0

    cyborg hawk v 1.0

    The World's most advanced penetration testing distribution ever

    The most advanced, powerful and yet beautiful penetration testing distribution ever created.Lined up with ultimate collection of tools for pro Ethical Hackers and Cyber Security Experts. Simplify security in your IT infrastructure with Cyborg. Its real strength comes from the understanding that a tester requires a strong and efficient system,that benefits from a strong selection of tools, integrated with a stable linux environment.
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    Downloads: 9 This Week
    Last Update:
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  • 13
    DISCLAIMER: USE ON YOUR OWN RISK. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER OR CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES !!! ONLY FOR PENTESTING PURPOSES !!!
    Downloads: 10 This Week
    Last Update:
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  • 14
    Falcon_ArchLinux

    Falcon_ArchLinux

    Falcon ArchLinux pruple team tools cyber security

    uses repo BlackArchlinux and ArchLinux
    Downloads: 9 This Week
    Last Update:
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  • 15
    IP Availability Scanner

    IP Availability Scanner

    Fast IP and Port Scanner

    This utility efficiently scans IP addresses and gathers host names and MAC addresses. It offers the capability to export scan results and includes features for port scanning of selected hosts. Enhanced with a multithreaded framework, the tool delivers increased speed, supporting functionalities like trigger actions and banner grabbing during port scans. For more advanced options, right-click on the displayed grids. This context menu includes options for port scanning, copying results, and network diagnostics tools like ping and traceroute. Additionally, it allows for easy access to ports using standard protocols such as SSH. A convenient feature is the ability to quickly identify the manufacturer of a MAC address with a simple mouse click. Moreover, the interface is user-friendly, enabling sorting of information by simply clicking on the column headers in the display grid. For more information, visit https://vonwallace.com Video Overview: https://rumble.com/v51z6o3-fas
    Downloads: 8 This Week
    Last Update:
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  • 16
    Phish Alert  Button for Outlook

    Phish Alert Button for Outlook

    Free Outlook plugin to report phishing emails with one click

    The Phish Alert Button for Outlook is a free add-in that allows users to report suspected phishing emails directly from their inbox with a single click. Once installed, it adds a button to the Outlook ribbon, enabling employees to forward suspicious messages to a predefined mailbox such as your SOC or IT security team. This lightweight plugin helps organizations improve phishing detection by encouraging user participation in threat reporting. It integrates smoothly with Outlook 2013 and newer versions, requires minimal setup and works in both on-premise and Microsoft 365 environments. Features: – One-click phishing email reporting – Compatible with Outlook 2013 and later – Simple configuration and fast deployment – Sends reports to a custom email address – Fully customizable: customize button name, ribbon and other details. Empower your users to become part of your phishing defense strategy with the free Phish Alert Button for Outlook.
    Downloads: 4 This Week
    Last Update:
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  • 17
    Scalytics Open Intelligence - OSINT

    Scalytics Open Intelligence - OSINT

    Open OSINT stack for monitoring, analysis, and risk detection

    EUOSINT is the open-source edition of the OSINT pipeline built by Scalytics for real-world intelligence monitoring, situation analysis, and risk detection. It is not a toy dashboard or a loose script bundle. It is a packaged operational stack with a web interface, a Go-based collector runtime, configurable ingestion and refresh cadence, Docker-first deployment, and local or server installation options. The public release removes non-public and protected integrations while preserving the pipeline structure and deployment model that make the system usable in practice. EUOSINT is built for teams that need continuous monitoring, reproducible installs, and a base they can extend for their own intelligence and security workflows.
    Downloads: 6 This Week
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  • 18
    tirreno

    tirreno

    Open-source security framework for devs and product teams

    tirreno is an open-source security framework. tirreno [tir.ˈrɛ.no] helps understand, monitor, and protect your product from threats, fraud, and abuse. While classic cybersecurity focuses on infrastructure and network perimeter, most breaches occur through compromised accounts and application logic abuse that bypasses firewalls, SIEM, WAFs, and other defenses. tirreno detects threats where they actually happen: inside your product. tirreno is a few-dependency, "low-tech" PHP/PostgreSQL application. After a straightforward five-minute installation, you can ingest events through API calls and immediately access a real-time threat dashboard.
    Downloads: 6 This Week
    Last Update:
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  • 19
    S2OPC - Safe & Secure OPC UA

    S2OPC - Safe & Secure OPC UA

    An Open Source Safe & Secure OPC UA stack

    Open-source Safe and Secure OPC UA Toolkit designed with embedded devices in mind (see https://www.s2opc.com). Its demo server is certified by the OPC Foundation and CSPN(-BSZ).
    Downloads: 4 This Week
    Last Update:
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  • 20
    RSA消息非对称加密器

    RSA消息非对称加密器

    A message encrypt app on Windows, use RSA 512-10240 bit.

    A message encrypt app on Windows, use RSA 512-10240 bit to ensure communication security.
    Downloads: 2 This Week
    Last Update:
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  • 21
    BypassHash

    BypassHash

    This tool downloads an executable and bypasses hash-based virus checks

    This tool downloads an executable, ELF (Linux) and PE (Windows), modify metadata to bypasses hash-based virus checks and protect against identification with metadata (like rich headers, timestamps, ...).
    Downloads: 3 This Week
    Last Update:
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  • 22

    Network Enumeration Tool

    Network Enumeration Tool for Host Exploration and Recon

    N-ETHER (Network Enumeration Tool for Host Exploration and Reconnaissance) is a robust and highly automated Python script designed to streamline the critical initial phases of network security auditing and penetration testing. It’s core purpose is to perform fast, comprehensive, and consistent host and port discovery across single targets or large lists of IP addresses. N-ETHER functions as an intelligent, opinionated wrapper around the powerful nmap tool, bundling best-practice scanning techniques—including service versioning, NSE scripting, and intelligent port selection—into a single, easy-to-use utility. This significantly reduces auditor workload and potential for human error compared to manually executing multiple complex nmap commands. Read the README!!!
    Downloads: 3 This Week
    Last Update:
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  • 23
    Stegcore

    Stegcore

    A cross-platform crypto-steganography toolkit

    Stegcore combines cryptography and steganography to hide encrypted data inside ordinary files. It encrypts your payload before embedding it, so the hidden content is unreadable even if someone extracts it, and invisible to anyone who doesn't know it's there. Unlike basic steganography tools that hide data without encrypting it, Stegcore ensures the payload is cryptographically protected at rest. Unlike pure encryption tools, the payload isn't even visible. Designed for journalists, security researchers, red teamers, digital forensics professionals, and CTF participants.
    Downloads: 3 This Week
    Last Update:
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  • 24
    Naeon

    Naeon

    The safest way to store private data in untrusted (cloud) environments

    Naeon secures data in untrusted off-site storage through a layered approach: files are compressed, then AES-256 encrypted with a randomly generated 128-character passphrase yielding approximately 762 bits of entropy — far beyond the reach of both classical and quantum brute-force attacks. The ciphertext is obfuscated by prepending and appending random byte blocks, making the result unidentifiable as an encrypted file. The payload is then sharded into one private chunk — holding the encryption key and part of the data — and multiple equal-sized public chunks, each renamed to its SHA-512 hash and given a uniform timestamp to prevent metadata inference. A private filename conversion table preserves the concatenation order needed for restoration. Together these measures guarantee confidentiality, integrity, and availability regardless of storage provider trustworthiness. Threshold Key Sharing extends this further by splitting the private key, eliminating the single point of failure.
    Downloads: 2 This Week
    Last Update:
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  • 25
    T2DECODE

    T2DECODE

    Offline-first cybersecurity and system learning platform (Flutter)

    T2DECODE — Plateforme locale d’apprentissage technique T2DECODE est une suite native conçue pour l’apprentissage pratique de l’informatique, des réseaux et de la cybersécurité. Porté par l'association TUTODECODE, le projet applique le principe du "Privacy by Design" : exécution 100% locale, zéro télémétrie et souveraineté absolue sur vos données. SPECIFICATIONS TECHNIQUES * 100% Offline-first : Fonctionne sans Internet. Idéal pour zones blanches ou architectures sécurisées (Air-gapped). * Souveraineté : Pas d'analytics, pas de trackers, pas de comptes obligatoires. * IA Locale : Support optionnel des LLM via Ollama pour une assistance privée sans API tierce. MODULES INTÉGRÉS * Réseau : Simulateur de masques de sous-réseau et calculs CIDR. * Système : Gestionnaire et traducteur interactif de permissions Unix (chmod). * Cryptographie & Outils : +15 utilitaires offline (Hachage SHA-256/MD5, diagnostics). Idéal pour étudiants (BTS SIO, BUT) et admins. Licence GPLv3.
    Downloads: 2 This Week
    Last Update:
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