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Top 100 security Repositories

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RankingProject NameStarsForksLanguageOpen IssuesDescriptionLast Commit
1ECC259,45438,812JavaScript67The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.2026-09-15
2the-book-of-secret-knowledge244,01314,337-0A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools and more.2024-11-19
3Awesome-Hacking120,49610,749-0A collection of various awesome lists for hackers, pentesters and security researchers2026-07-26
4cs-video-courses83,50811,488-0List of Computer Science courses with video lectures.2026-09-11
5PayloadsAllTheThings80,89217,375Python0A list of useful payloads and bypass for Web Application Security and Pentest/CTF2026-08-27
6caddy75,7704,963Go200Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS2026-09-14
7union73,8003,881Rust128The trust-minimized, zero-knowledge bridging protocol, designed for censorship resistance, extremely high security, and usage in decentralized finance.2026-07-25
8SecLists73,54425,115PHP8SecLists is the security tester's companion. It's a collection of multiple types of lists used during security assessments, collected in one place. List types include usernames, passwords, URLs, sensi...2026-09-15
9strix62,8206,867Python170Open-source AI penetration testing tool to find and fix your app’s vulnerabilities.2026-09-15
10gatsby55,94110,116JavaScript218React-based framework with performance, scalability, and security built in.2026-09-16
11Docker-OSX52,9242,885Shell397Run macOS VM in a Docker! Run near native OSX-KVM in Docker! X11 Forwarding! CI/CD for OS X Security Research! Docker mac Containers.2025-11-11
12x64dbg49,5202,840C++570An open-source user mode debugger for Windows. Optimized for reverse engineering and malware analysis.2026-09-14
13shannon48,0445,503TypeScript6Shannon is an AI pentester for web applications and APIs. It analyzes your source code, identifies attack vectors, and executes real exploits to prove vulnerabilities before they reach production.2026-09-08
14mitmproxy45,0674,729Python372An interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers.2026-09-10
15sniffnet41,1261,959Rust52Comfortably monitor your network traffic 🕵️‍♂️2026-09-15
16quivr39,5283,733Python10Opiniated RAG for integrating GenAI in your apps 🧠 Focus on your product rather than the RAG. Easy integration in existing products with customisation! Any LLM: GPT4, Groq, Llama. Any Vectorstore:...2026-08-31
17trivy37,933686Go172Find vulnerabilities, misconfigurations, secrets, SBOM in containers, Kubernetes, code repositories, clouds and more2026-09-15
18reverse-skill36,0514,967PowerShell4Reverse Engineering / Authorized Penetration Testing / Security Research Skill Router Pack AI-powered routing + On-demand toolchain bootstrapping + Self-evolving knowledge base Supports Claude Code, ...2026-09-03
19web-check34,8242,852TypeScript5🕵️‍♂️ All-in-one OSINT tool for analysing any website2026-09-14
20CheatSheetSeries33,1864,622Python37The OWASP Cheat Sheet Series was created to provide a concise collection of high value information on specific application security topics.2026-09-15
21Anthropic-Cybersecurity-Skills32,8293,963Python21817 structured cybersecurity skills for AI agents · Mapped to 6 frameworks: MITRE ATT&CK, NIST CSF 2.0, MITRE ATLAS, D3FEND, NIST AI RMF & MITRE F3 (Fight Fraud) · agentskills.io standard · Works with...2026-08-31
22nginx31,6528,301C227The official NGINX Open Source repository.2026-09-15
23How-To-Secure-A-Linux-Server31,4252,120-32An evolving how-to guide for securing a Linux server.2026-09-07
24nuclei31,2293,869Go60Nuclei is a fast, customizable vulnerability scanner powered by the global security community and built on a simple YAML-based DSL, enabling collaboration to tackle trending vulnerabilities on the int...2026-09-15
25hosts31,0652,440Python149🔒 Consolidating and extending hosts files from several well-curated sources. Optionally pick extensions for porn, social media, and other categories.2026-09-14
26nanoclaw30,78112,834TypeScript357A lightweight alternative to OpenClaw that runs in containers for security. Connects to WhatsApp, Telegram, Slack, Discord, Gmail and other messaging apps,, has memory, scheduled jobs, and runs direct...2026-09-15
27algo30,3832,364Python70Set up a personal VPN in the cloud2026-09-09
28ProxmoxVE29,5982,887Shell15Proxmox VE Helper-Scripts (Community Edition)2026-09-16
29h4cker29,4345,367Jupyter Notebook1This repository is maintained by Omar Santos (@santosomar) and includes thousands of resources related to ethical hacking, bug bounties, digital forensics and incident response (DFIR), AI security, vu...2026-09-12
30gitleaks29,3362,236Go267Find secrets with Gitleaks 🔑2026-09-09
31infisical29,2792,258TypeScript259Infisical is the open-source platform for secrets, certificates, and privileged access management.2026-09-16
32authelia28,9831,482Go59The Single Sign-On Multi-Factor portal for web apps. OpenID Certified™ and Post-Quantum Cryptography Ready.2026-09-16
33SpringAll28,9418,083Java21循序渐进,学习Spring Boot、Spring Boot & Shiro、Spring Batch、Spring Cloud、Spring Cloud Alibaba、Spring Security & Spring Security OAuth2,博客Spring系列源码:https://mrbird.cc2024-05-31
34keepassxc28,8171,909C++786KeePassXC is a cross-platform community-driven port of the Windows application “KeePass Password Safe”.2026-09-15
35setup-ipsec-vpn28,4976,514Shell0Set up your own IPsec VPN server in just a few minutes, with IPsec/L2TP, Cisco IPsec and IKEv2. Supports Ubuntu, Debian, CentOS/RHEL, Alpine Linux and Raspberry Pi OS. Includes client config and manag...2026-09-14
36nginxconfig.io28,2602,027JavaScript62⚙️ NGINX config generator on steroids 💉2024-12-14
37trufflehog27,9372,579Go267Find, verify, and analyze leaked credentials2026-09-16
38openzeppelin-contracts27,24212,401Solidity241OpenZeppelin Contracts is a library for secure smart contract development.2026-09-15
39authentik25,5702,019Python759The authentication glue you need.2026-09-16
40cilium25,1494,059Go818eBPF-based Networking, Security, and Observability2026-09-16
41radare224,8093,319C752UNIX-like reverse engineering framework and command-line toolset2026-09-16
42osquery23,5702,596C++588SQL powered operating system instrumentation, monitoring, and analytics.2026-09-15
43slim23,411839Go188Slim(toolkit): Don't change anything in your container image and minify it by up to 30x (and for compiled languages even more) making it secure too! (free and open source)2026-08-02
44API-Security-Checklist23,3172,649-1Checklist of the most important security countermeasures when designing, testing, and releasing your API2026-07-21
45sops23,1361,080Go376Simple and flexible tool for managing secrets2026-09-14
46pangolin22,763783TypeScript77Modern networking and security platform providing secure access and connectivity to apps, infrastructure, and AI workloads. Connect and protect your users.2026-09-16
47SafeLine22,6001,531Go69SafeLine is a self-hosted WAF(Web Application Firewall) / reverse proxy to protect your web apps from attacks and exploits.2026-09-10
48macOS-Security-and-Privacy-Guide22,5261,462Shell6Community guide to securing and improving privacy on macOS.2026-09-16
49anubis22,454721Go309Weighs the soul of incoming HTTP requests to stop AI crawlers2026-09-14
50personal-security-checklist22,3261,466TypeScript48🔒 A compiled checklist of 300+ tips for protecting digital security and privacy in 20262026-09-07
51eladmin21,9117,336Java20eladmin jpa 版本:项目基于 Spring Boot 2.7.18、 Jpa、 Spring Security、Redis、Vue的前后端分离的后台管理系统,项目采用分模块开发方式, 权限控制采用 RBAC,支持数据字典与数据权限管理,支持一键生成前后端代码,支持动态路由2026-05-09
52matomo21,8742,895PHP2460Empowering People Ethically 🚀 — Matomo is hiring! Join us → https://matomo.org/jobs Matomo is the leading open-source alternative to Google Analytics, giving you complete control and built-in privacy...2026-09-16
53mimikatz21,8424,165C155A little tool to play with Windows security2026-04-17
54Mobile-Security-Framework-MobSF21,7783,758JavaScript18Mobile Security Framework (MobSF) is an automated, all-in-one mobile application (Android/iOS/Windows) pen-testing, malware analysis and security assessment framework capable of performing static and ...2026-09-09
55chezmoi21,615687Go54Manage your dotfiles across multiple diverse machines, securely.2026-09-13
56Atlas21,536753Batchfile7🚀 An open and lightweight modification to Windows, designed to optimize performance, privacy and usability.2026-09-14
57security-guide-for-developers21,0941,573-0Security Guide for Developers2025-08-30
58teleport20,9232,156Go2703The easiest, and most secure way to access and protect all of your infrastructure.2026-09-15
59shardingsphere20,7976,899Java182Empowering Data Intelligence with Distributed SQL for Sharding, Scalability, and Security Across All Databases.2026-09-15
60RustScan20,4151,382Rust34🤖 The Modern Port Scanner 🤖2026-09-09
61bettercap19,9811,723Go43The Swiss Army knife for 802.11, BLE, HID, CAN-bus, IPv4 and IPv6 networks reconnaissance and MITM attacks.2026-08-13
62DB-GPT19,9702,929Python371open-source agentic AI data assistant for the next generation of AI + Data products.2026-09-15
63universal-android-debloater19,9191,060Rust512Cross-platform GUI written in Rust using ADB to debloat non-rooted android devices. Improve your privacy, the security and battery life of your device.2024-08-02
64cutter19,7341,461C++468Free and Open Source Reverse Engineering Platform powered by rizin2026-09-11
65Obtainium19,705598Dart358Get Android app updates straight from the source.2026-09-13
66simplex-chat19,4481,350Haskell999SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱!2026-09-15
6790DaysOfCyberSecurity19,3262,202-3This repository contains a 90-day cybersecurity study plan, along with resources and materials for learning various cybersecurity concepts and technologies. The plan is organized into daily tasks, cov...2026-09-06
68fail2ban18,6301,498Python162Daemon to ban hosts that cause multiple authentication errors2026-09-11
69nebula18,3451,184Go55A scalable overlay networking tool with a focus on performance, simplicity and security2026-09-15
70CS-Interview-Knowledge-Map18,2402,527-29Build the best interview map. The current content includes JS, network, browser related, performance optimization, security, framework, Git, data structure, algorithm, etc.2020-05-03
71hydra17,5431,610Go62Internet-scale OpenID Certified™ OpenID Connect and OAuth2.1 provider that integrates with your user management through headless APIs. Solve OIDC/OAuth2 user cases over night. Consume as a service on ...2026-07-29
72DOMPurify17,392861JavaScript0DOMPurify - a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMPurify works with a secure default, but offers a lot of configurability and hooks. Demo:2026-09-15
73SkillSpector17,3521,480Python59Security scanner for AI agent skills. Detect vulnerabilities, malicious patterns, security risks, prompt injection, data exfiltration, and supply-chain risks in Claude Code, Codex, and MCP skills befo...2026-09-16
74wazuh16,8942,481C++2919Wazuh - The Open Source Security Platform. Unified XDR and SIEM protection for endpoints and cloud workloads.2026-09-16
75lynis16,3421,634Shell173Lynis - Security auditing tool for Linux, macOS, and UNIX-based systems. Assists with compliance testing (HIPAA/ISO27001/PCI DSS) and system hardening. Agentless, and installation optional.2026-09-09
76javascript-obfuscator16,2571,741TypeScript15A powerful obfuscator for JavaScript and Node.js2026-09-09
77cryptomator16,1421,541Java274Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.2026-09-15
78systeminformer16,0061,785C273A free, powerful, multi-purpose tool that helps you monitor system resources, debug software and detect malware. Brought to you by Winsider Seminars & Solutions, Inc. @ https://windows-internals.com2026-09-16
79zaproxy15,7712,636Java808The ZAP by Checkmarx Core project2026-09-15
80hacker-roadmap15,5961,709-2A collection of hacking tools, resources and references to practice ethical hacking.2023-10-16
81crowdsec14,863718Go222CrowdSec - the open-source and participative security solution offering crowdsourced protection against malicious IPs and access to the most advanced real-world CTI.2026-09-15
82awesome-security14,8592,396-33A collection of awesome software, libraries, documents, books, resources and cools stuffs about security.2026-01-11
83wifiphisher14,8452,744Python336The Rogue Access Point Framework2026-05-22
84prowler14,8192,385Python143Prowler is the world’s most widely used open-source cloud security platform that automates security and compliance across any cloud environment.2026-09-15
85dirsearch14,7272,440Python14Web path scanner2026-09-16
86fscan14,5541,947Go14一款内网综合扫描工具,方便一键自动化、全方位漏扫扫描。(An intranet comprehensive scanning tool, enabling one-click automated, all-round vulnerability scanning)2026-09-01
87openvpn14,5513,397C181OpenVPN is an open source VPN daemon2026-09-15
88hacker10114,5412,661SCSS0Source code for Hacker101.com - a free online web and mobile security class.2025-02-22
89bytebase14,486983Go147Database governance built for humans and agents — controlling changes and access across every major database.2026-09-16
90nginx-admins-handbook14,3081,137Shell3How to improve NGINX performance, security, and other important things.2024-11-19
91gophish14,2182,958Go673Open-Source Phishing Toolkit2024-09-23
92zuul14,0782,445Java1Zuul is a gateway service that provides dynamic routing, monitoring, resiliency, security, and more.2026-09-11
93opensnitch14,066664Python170OpenSnitch is a GNU/Linux interactive application firewall inspired by Little Snitch.2026-07-26
94opennhp13,9242,479Go11A lightweight, cryptography-powered, open-source toolkit built to enforce Zero Trust security for infrastructure, applications, and data in the AI-driven world.2026-09-16
95juice-shop13,87419,615TypeScript4OWASP Juice Shop: Probably the most modern and sophisticated insecure web application2026-09-14
96awesome-web-security13,7981,818Python1🐶 A curated list of Web Security materials and resources.2026-09-14
97DVWA13,6725,110PHP3Damn Vulnerable Web Application (DVWA)2026-09-07
98GTFOBins.github.io13,6641,686YAML6GTFOBins is a curated list of Unix-like executables that can be used to bypass local security restrictions in misconfigured systems.2026-05-27
99nmap13,5962,906C364Nmap - the Network Mapper. Github mirror of official SVN repository.2026-09-15
100tink13,5351,191Java0Tink is a multi-language, cross-platform, open source library that provides cryptographic APIs that are secure, easy to use correctly, and hard(er) to misuse.2024-04-17