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Top 100 security Repositories ​

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RankingProject NameStarsForksLanguageOpen IssuesDescriptionLast Commit
1ECC272,38440,670JavaScript85The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.2026-10-02
2the-book-of-secret-knowledge247,71814,447-0A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools and more.2024-11-19
3Awesome-Hacking121,80410,803-0A collection of various awesome lists for hackers, pentesters and security researchers2026-07-26
4cs-video-courses83,60411,495-0List of Computer Science courses with video lectures.2026-09-27
5PayloadsAllTheThings81,44617,437Python0A list of useful payloads and bypass for Web Application Security and Pentest/CTF2026-08-27
6caddy76,2645,029Go198Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS2026-10-03
7SecLists73,92025,142PHP8SecLists 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...2026-10-03
8union73,7813,885Rust129The trust-minimized, zero-knowledge bridging protocol, designed for censorship resistance, extremely high security, and usage in decentralized finance.2026-07-25
9strix66,3777,275Python179Open-source AI penetration testing tool to find and fix your app’s vulnerabilities.2026-10-04
10gatsby55,94210,109JavaScript217React-based framework with performance, scalability, and security built in.2026-10-03
11Docker-OSX52,9502,885Shell397Run 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
12x64dbg49,6842,851C++565An open-source user mode debugger for Windows. Optimized for reverse engineering and malware analysis.2026-10-01
13shannon48,5625,563TypeScript9Shannon 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.2026-10-01
14mitmproxy45,2544,759Python370An interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers.2026-10-03
15sniffnet41,3261,961Rust52Comfortably monitor your network traffic 🕵️‍♂️2026-10-03
16quivr39,5793,739Python9Opiniated 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
17reverse-skill39,5485,513PowerShell11Reverse Engineering / Authorized Penetration Testing / Security Research Skill Router Pack AI-powered routing + On-demand toolchain bootstrapping + Self-evolving knowledge base Supports Claude Code, ...2026-09-22
18trivy38,211723Go170Find vulnerabilities, misconfigurations, secrets, SBOM in containers, Kubernetes, code repositories, clouds and more2026-10-02
19web-check34,9962,871TypeScript1🕵️‍♂️ All-in-one OSINT tool for analysing any website2026-10-02
20Anthropic-Cybersecurity-Skills33,7614,089Python22817 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
21CheatSheetSeries33,4124,652JavaScript1The OWASP Cheat Sheet Series was created to provide a concise collection of high value information on specific application security topics.2026-10-03
22nginx31,7878,311C193The official NGINX Open Source repository.2026-09-30
23How-To-Secure-A-Linux-Server31,7552,144-33An evolving how-to guide for securing a Linux server.2026-09-07
24nuclei31,7023,907Go65Nuclei 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...2026-10-02
25hosts31,1582,437Python155🔒 Consolidating and extending hosts files from several well-curated sources. Optionally pick extensions for porn, social media, and other categories.2026-10-02
26nanoclaw30,87612,783TypeScript286A 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...2026-10-04
27algo30,4062,366Python74Set up a personal VPN in the cloud2026-10-01
28ProxmoxVE29,7212,914Shell11Proxmox VE Helper-Scripts (Community Edition)2026-10-04
29gitleaks29,6442,264Go272Find secrets with Gitleaks 🔑2026-09-30
30h4cker29,6085,394Jupyter 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...2026-09-29
31infisical29,5902,306TypeScript265Infisical is the open-source platform for secrets, certificates, and privileged access management.2026-10-04
32authelia29,1651,501Go57The Single Sign-On Multi-Factor portal for web apps. OpenID Certified™ and Post-Quantum Cryptography Ready.2026-10-04
33keepassxc29,0711,925C++784KeePassXC is a cross-platform community-driven port of the Windows application “KeePass Password Safe”.2026-09-30
34SpringAll28,9468,076Java21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
35setup-ipsec-vpn28,6386,518Shell0Set 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...2026-09-21
36nginxconfig.io28,2692,028JavaScript62⚙️ NGINX config generator on steroids 💉2024-12-14
37trufflehog28,2662,619Go273Find, verify, and analyze leaked credentials2026-10-03
38openzeppelin-contracts27,26512,394Solidity215OpenZeppelin Contracts is a library for secure smart contract development.2026-10-01
39authentik25,8282,057Python751The authentication glue you need.2026-10-04
40cilium25,5984,124Go841eBPF-based Networking, Security, and Observability2026-10-04
41radare224,9183,335C732UNIX-like reverse engineering framework and command-line toolset2026-10-04
42security-audit-skill23,9511,417JavaScript20A coding-agent skill for multi-phase security audits with independently verified, machine-readable findings2026-09-14
43osquery23,6082,607C++515SQL powered operating system instrumentation, monitoring, and analytics.2026-10-02
44slim23,423846Go188Slim(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)2026-09-19
45API-Security-Checklist23,3312,645-1Checklist of the most important security countermeasures when designing, testing, and releasing your API2026-07-21
46sops23,2831,088Go377Simple and flexible tool for managing secrets2026-09-28
47anubis23,043745Go313Weighs the soul of incoming HTTP requests to stop AI crawlers2026-09-30
48pangolin22,997794TypeScript68Modern networking and security platform providing secure access and connectivity to apps, infrastructure, and AI workloads. Connect and protect your users.2026-10-02
49SafeLine22,7011,544Go72SafeLine is a self-hosted WAF(Web Application Firewall) / reverse proxy to protect your web apps from attacks and exploits.2026-09-28
50macOS-Security-and-Privacy-Guide22,5351,463Shell5Community guide to securing and improving privacy on macOS.2026-10-01
51personal-security-checklist22,4511,476TypeScript38🔒 A compiled checklist of 300+ tips for protecting digital security and privacy in 20262026-10-01
52matomo21,9192,903PHP2407Empowering 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...2026-10-04
53eladmin21,9067,330Java24eladmin 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
54mimikatz21,8824,176C155A little tool to play with Windows security2026-04-17
55Mobile-Security-Framework-MobSF21,8733,777JavaScript9Mobile 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 ...2026-09-30
56chezmoi21,810693Go56Manage your dotfiles across multiple diverse machines, securely.2026-10-02
57Atlas21,745760Batchfile9🚀 An open and lightweight modification to Windows, designed to optimize performance, privacy and usability.2026-10-03
58security-guide-for-developers21,0961,570-0Security Guide for Developers2025-08-30
59teleport20,9632,169Go2722The easiest, and most secure way to access and protect all of your infrastructure.2026-09-17
60shardingsphere20,8056,904Java178Empowering Data Intelligence with Distributed SQL for Sharding, Scalability, and Security Across All Databases.2026-10-04
61RustScan20,4961,387Rust13🤖 The Modern Port Scanner 🤖2026-10-03
62Obtainium20,174619Dart376Get Android app updates straight from the source.2026-09-13
63DB-GPT20,0772,947Python375open-source agentic AI data assistant for the next generation of AI + Data products.2026-10-03
64bettercap20,0741,727Go43The Swiss Army knife for 802.11, BLE, HID, CAN-bus, IPv4 and IPv6 networks reconnaissance and MITM attacks.2026-08-13
65universal-android-debloater20,0111,061Rust512Cross-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
66cutter19,8601,478C++469Free and Open Source Reverse Engineering Platform powered by rizin2026-09-11
6790DaysOfCyberSecurity19,7742,265-5This 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
68simplex-chat19,5141,361Haskell1010SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱!2026-10-03
69SkillSpector19,3051,687Python73Security 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...2026-10-02
70fail2ban18,7111,500Python163Daemon to ban hosts that cause multiple authentication errors2026-09-28
71nebula18,4101,191Go55A scalable overlay networking tool with a focus on performance, simplicity and security2026-10-02
72CS-Interview-Knowledge-Map18,2302,526-29Build the best interview map. The current content includes JS, network, browser related, performance optimization, security, framework, Git, data structure, algorithm, etc.2020-05-03
73hydra17,5871,607Go59Internet-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
74DOMPurify17,433860JavaScript0DOMPurify - 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:2026-10-03
75wazuh17,0822,522C++2947Wazuh - The Open Source Security Platform. Unified XDR and SIEM protection for endpoints and cloud workloads.2026-10-03
76lynis16,4271,635Shell172Lynis - 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.2026-09-16
77javascript-obfuscator16,2821,742TypeScript15A powerful obfuscator for JavaScript and Node.js2026-10-04
78cryptomator16,2431,546Java276Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.2026-10-01
79systeminformer16,1551,795C283A 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.com2026-10-03
80zaproxy15,8662,654Java804The ZAP by Checkmarx Core project2026-10-01
81hacker-roadmap15,6311,715-2A collection of hacking tools, resources and references to practice ethical hacking.2023-10-16
82mvt15,1951,435Python27MVT (Mobile Verification Toolkit) helps with conducting forensics of mobile devices in order to find signs of a potential compromise.2026-09-30
83crowdsec15,060725Go226Open-source IDS/IPS, WAF and bot detection for Linux, Windows, Docker and Kubernetes, with a crowdsourced blocklist of malicious IPs.2026-10-02
84awesome-security14,9312,417-34A collection of awesome software, libraries, documents, books, resources and cools stuffs about security.2026-01-11
85prowler14,9282,416Python157Prowler is the world’s most widely used open-source cloud security platform that automates security and compliance across any cloud environment.2026-10-03
86dirsearch14,9202,453Python14Web path scanner2026-10-04
87wifiphisher14,8752,745Python336The Rogue Access Point Framework2026-05-22
88openvpn14,6353,405C180OpenVPN is an open source VPN daemon2026-10-03
89fscan14,6181,949Go12一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)2026-10-01
90hacker10114,5632,663SCSS0Source code for Hacker101.com - a free online web and mobile security class.2025-02-22
91bytebase14,536988Go149Database governance built for humans and agents — controlling changes and access across every major database.2026-10-03
92nginx-admins-handbook14,3151,138Shell3How to improve NGINX performance, security, and other important things.2024-11-19
93gophish14,2902,976Go676Open-Source Phishing Toolkit2024-09-23
94opensnitch14,118674Python173OpenSnitch is a GNU/Linux interactive application firewall inspired by Little Snitch.2026-07-26
95zuul14,0832,440Java2Zuul is a gateway service that provides dynamic routing, monitoring, resiliency, security, and more.2026-10-01
96juice-shop14,01919,878TypeScript3OWASP Juice Shop: Probably the most modern and sophisticated insecure web application2026-09-30
97opennhp13,9402,484Go10A lightweight, cryptography-powered, open-source toolkit built to enforce Zero Trust security for infrastructure, applications, and data in the AI-driven world.2026-10-04
98awesome-web-security13,8461,823Python1🐶 A curated list of Web Security materials and resources.2026-09-14
99DVWA13,7685,162PHP3Damn Vulnerable Web Application (DVWA)2026-10-01
100GTFOBins.github.io13,7261,696YAML6GTFOBins is a curated list of Unix-like executables that can be used to bypass local security restrictions in misconfigured systems.2026-05-27