Best open-source Security tools

273 repositories with 4.2M stars between them, mostly written in Python, Go and TypeScript. The highest-rated is Gathin23/cleanyourtv, #35 on the bestofgithub Elo ladder.

Biggest movers this week

JuneYaooo/rea-video

Open on GitHubPython
  • Bronze V
  • Best of Nov 2026 #10
  • New & Rising · Nov 2026

Reverse-engineer any video, shot by shot: filmed, AI-generated or coded, and how to remake it. Breakdowns in the open VIDEO.md format. 逆向一切视频,逐个镜头看是拍的、AI 生成的还是代码做的,再告诉你怎么复刻;拆解结果按 VIDEO.md 格式输出。

  • 1,368+61 Elo, change today
  • +605 stars gained
  • 9.1k stars
  • 1.3k forks
  • 18 watchers
git
git clone https://github.com/JuneYaooo/rea-video.git
  • agent-skills
  • ai-video
  • aigc-detection
  • claude-code

Lucas-blip-png/dkb-pc-recomp

Open on GitHubC

Static recompilation of Donkey Kong Bananza (Switch 2) to native Windows and Linux with Vulkan. 0.4.0: Snow World and Glacier device loss fixed on NVIDIA, AMD device loss fixed for testers, crashes guarded, DLC and mods, .nx input, Linux AppImage, heavy scene ~58 fps. Roadmap: #10. No game files included.

  • 799+55 Elo, change today
  • 1k stars
  • 62 forks
git
git clone https://github.com/Lucas-blip-png/dkb-pc-recomp.git
  • arm64
  • donkey-kong
  • game-port
  • nintendo-switch-2

Universal-Debloater-Alliance/universal-android-debloater-next-generation

Open on GitHubRust

Cross-platform GUI written in Rust using ADB to debloat non-rooted Android devices. Improve your privacy, the security and battery life of your device.

  • 1,750+11 Elo, change today
  • 10.1k stars
  • 448 forks
  • 46 watchers
git
git clone https://github.com/Universal-Debloater-Alliance/universal-android-debloater-next-generation.git
  • adb
  • android
  • bloatware-list
  • bloatware-removal

maxgoedjen/secretive

Open on GitHubSwift

Protect your SSH keys with your Mac's Secure Enclave

  • 1,603+17 Elo, change today
  • 9.4k stars
  • 240 forks
git
git clone https://github.com/maxgoedjen/secretive.git
  • mac
  • secure-enclave
  • security
  • ssh

A-poc/RedTeam-Tools

Open on GitHub

Tools and Techniques for Red Team / Penetration Testing

  • 1,731+28 Elo, change today
  • 10.1k stars
  • 1.3k forks
  • 155 watchers
git
git clone https://github.com/A-poc/RedTeam-Tools.git
  • cheatsheet
  • cybersecurity
  • enumeration
  • hacking

JuneYaooo/rea-video

Open on GitHubPython
  • Bronze V
  • Best of Nov 2026 #10
  • New & Rising · Nov 2026

Reverse-engineer any video, shot by shot: filmed, AI-generated or coded, and how to remake it. Breakdowns in the open VIDEO.md format. 逆向一切视频,逐个镜头看是拍的、AI 生成的还是代码做的,再告诉你怎么复刻;拆解结果按 VIDEO.md 格式输出。

  • 1,368+61 Elo, change today
  • +605 stars gained
  • 9.1k stars
  • 1.3k forks
  • 18 watchers
git
git clone https://github.com/JuneYaooo/rea-video.git
  • agent-skills
  • ai-video
  • aigc-detection
  • claude-code

Gathin23/cleanyourtv

Open on GitHubPython
  • Legendary #35
  • Trending #10 · 4-day streak
  • Best of Nov 2026 #1
  • Best of Oct 2026 #1

Debloat any Android or Google TV over Wi-Fi and get an Apple TV-style home.

  • 2,394+5 Elo, change today
  • +409 stars gained
  • 58.2k stars
  • 7.6k forks
  • 159 watchers
git
git clone https://github.com/Gathin23/cleanyourtv.git
  • adb
  • adblock
  • android-tv
  • android-tv-launcher

bilawalsidhu/gods-eye-view

Open on GitHubJavaScript

A spy satellite simulator in your browser, except the data is real. Live open source spatial intelligence on a photorealistic 3D globe.

  • 2,302+2 Elo, change today
  • +251 stars gained
  • 65.1k stars
  • 12.8k forks
  • 1.1k watchers
docker
git clone https://github.com/bilawalsidhu/gods-eye-view && cd gods-eye-view && docker compose up -d
  • 3d-globe
  • cesium
  • flight-tracking
  • geospatial

Top 100 on the Elo ladder

  1. #35
    Gathin23/cleanyourtv

    Debloat any Android or Google TV over Wi-Fi and get an Apple TV-style home.

    2,394 Elo +2058.2kPython
  2. #59
    NationalSecurityAgency/ghidra

    Ghidra is a software reverse engineering (SRE) framework

    2,310 Elo −4100kJava
  3. #63
    bilawalsidhu/gods-eye-view

    A spy satellite simulator in your browser, except the data is real. Live open source spatial intelligence on a…

    2,302 Elo +1265.1kJavaScript
  4. #117
    Hack-with-Github/Awesome-Hacking

    A collection of various awesome lists for hackers, pentesters and security researchers

    2,214 Elo −3125k
  5. #305
    swisskyrepo/PayloadsAllTheThings

    A list of useful payloads and bypass for Web Application Security and Pentest/CTF

    2,064 Elo −3482.6kPython
  6. #370
    GyulyVGC/sniffnet

    Comfortably monitor your network traffic 🕵️‍♂️

    2,029 Elo +7942.8kRust
  7. #374
    Z4nzu/hackingtool

    ALL IN ONE Hacking Tool For Hackers

    2,027 Elo −3781.9kPython
  8. #456
    rclone/rclone

    "rsync for cloud storage" - Google Drive, S3, Dropbox, Backblaze B2, One Drive, Swift, Hubic, Wasabi, Google Cloud…

    1,991 Elo −1961kGo
  9. #473
    trufflesecurity/trufflehog

    Find, verify, and analyze leaked credentials

    1,985 Elo +7629.3kGo
  10. #480
    jivoi/awesome-osint

    :scream: A curated list of amazingly awesome OSINT

    1,981 Elo +231.1k
  11. #503
    projectdiscovery/nuclei

    Nuclei is a fast, customizable vulnerability scanner powered by the global security community and built on a simple…

    1,974 Elo +3932.9kGo
  12. #523
    smicallef/spiderfoot

    SpiderFoot automates OSINT for threat intelligence and mapping your attack surface.

    1,966 Elo +1724.6kPython
  13. #530
    bitcoin/bitcoin

    Bitcoin Core integration/staging tree

    1,963 Elo −6290.6kC++
  14. #555
    AdguardTeam/AdGuardHome

    Network-wide ads & trackers blocking DNS server

    1,956 Elo −1838.4kTypeScript
  15. #570
    farhanashrafdev/90DaysOfCyberSecurity

    This repository contains a 90-day cybersecurity study plan, along with resources and materials for learning various…

    1,950 Elo +4021.3k
  16. #595
    AprilNEA/OpenLogi

    ⚡️A native, local-first alternative to Logitech Options+, written in Rust 🦀 — remap buttons, DPI, and SmartShift over…

    1,942 Elo +1725.7kRust
  17. #648
    iBotPeaches/Apktool

    A tool for reverse engineering Android apk files

    1,929 Elo −927.2kJava
  18. #694
    hagezi/dns-blocklists

    DNS-Blocklists: For a better internet - keep the internet clean!

    1,918 Elo +528.8kText
  19. #706
    x64dbg/x64dbg

    An open-source user mode debugger for Windows. Optimized for reverse engineering and malware analysis.

    1,915 Elo −3850.3kC++
  20. #723
    openssl/openssl

    General purpose TLS and crypto library

    1,912 Elo −3631.4kC
  21. #745
    sundowndev/phoneinfoga

    Information gathering framework for phone numbers

    1,907 Elo +3218.5kGo
  22. #750
    OWASP/CheatSheetSeries

    The OWASP Cheat Sheet Series was created to provide a concise collection of high value information on specific…

    1,906 Elo −1234kJavaScript
  23. #753
    keepassxreboot/keepassxc

    KeePassXC is a cross-platform community-driven port of the Windows application “KeePass Password Safe”.

    1,905 Elo −1030kC++
  24. #754
    juice-shop/juice-shop

    OWASP Juice Shop: Probably the most modern and sophisticated insecure web application

    1,904 Elo −2814.4kTypeScript
  25. #756
    WerWolv/ImHex

    🔍 A Hex Editor for Reverse Engineers, Programmers and people who value their retinas when working at 3 AM.

    1,904 Elo −2155.8kC++
  26. #800
    ente/ente

    💚 End-to-end encrypted cloud for everything.

    1,895 Elo +2030.1kDart
  27. #880
    mvt-project/mvt

    MVT (Mobile Verification Toolkit) helps with conducting forensics of mobile devices in order to find signs of a…

    1,879 Elo +3816kPython
  28. #898
    ImranR98/Obtainium

    Get Android app updates straight from the source.

    1,875 Elo +521.5kDart
  29. #902
    HunxByts/GhostTrack

    Useful tool to track location or mobile number

    1,874 Elo −1820.7kPython
  30. #928
    radareorg/radare2

    UNIX-like reverse engineering framework and command-line toolset

    1,870 Elo −2425.4kC
  31. #935
    imputnet/helium

    Private, fast, and honest web browser

    1,868 Elo +3922.7kC++
  32. #950
    Datalux/Osintgram

    Osintgram is a OSINT tool on Instagram. It offers an interactive shell to perform analysis on Instagram account of any…

    1,865 Elo +3215.6kPython
  33. #967
    lissy93/web-check

    🕵️‍♂️ All-in-one OSINT tool for analysing any website

    1,862 Elo +135.5kTypeScript
  34. #979
    komi-store/komi-store

    🩵 A free, open-source app store for developers' releases on GitHub, Codeberg & Forgejo — browse, discover, and install…

    1,860 Elo +4920.7kKotlin
  35. #1,037
    better-auth/better-auth

    The most comprehensive authentication framework

    1,850 Elo −2530.7kTypeScript
  36. #1,050
    gchq/CyberChef

    The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis

    1,848 Elo −2336.4kJavaScript
  37. #1,052
    wazuh/wazuh

    Wazuh - The Open Source Security Platform. Unified XDR and SIEM protection for endpoints and cloud workloads.

    1,847 Elo +3417.7kC++
  38. #1,053
    librepods-org/librepods

    AirPods liberated from Apple's ecosystem.

    1,847 Elo −1230.7kKotlin
  39. #1,071
    antoniaci/blackbird

    An OSINT tool to search for accounts by username and email in social networks.

    1,845 Elo +4410.1kPython
  40. #1,075
    TecharoHQ/anubis

    Weighs the soul of incoming HTTP requests to stop AI crawlers

    1,844 Elo +2824.1kGo
  41. #1,146
    itsfatduck/optimizerDuck

    Free, open-source Windows optimization tool for performance, privacy, and simplicity.

    1,835 Elo +15111.7kC#
  42. #1,184
    spacedriveapp/spacedrive

    Spacedrive is an open source cross-platform file explorer, powered by a virtual distributed filesystem written in Rust.

    1,829 Elo −3239.5kRust
  43. #1,263
    MobSF/Mobile-Security-Framework-MobSF

    Mobile Security Framework (MobSF) is an automated, all-in-one mobile application (Android/iOS/Windows) pen-testing…

    1,818 Elo −1922.2kPython
  44. #1,324
    FreeTubeApp/FreeTube

    An Open Source YouTube app for privacy

    1,809 Elo +922.4kVue
  45. #1,405
    megadose/holehe

    holehe allows you to check if the mail is used on different sites like twitter, instagram and will retrieve information…

    1,797 Elo +1415.6kPython
  46. #1,413
    StevenBlack/hosts

    🔒 Consolidating and extending hosts files from several well-curated sources. Optionally pick extensions for porn…

    1,796 Elo −1831.4kPython
  47. #1,479
    laramies/theHarvester

    E-mails, subdomains and names Harvester - OSINT

    1,787 Elo +2118.3kPython
  48. #1,505
    memstechtips/Winhance

    Application designed to optimize, customize and enhance your Windows experience.

    1,784 Elo +7514.9kC#
  49. #1,633
    ungoogled-software/ungoogled-chromium

    Google Chromium, sans integration with Google

    1,769 Elo +2228.2kPython
  50. #1,650
    instaloader/instaloader

    Download pictures (or videos) along with their captions and other metadata from Instagram.

    1,767 Elo +6713.9kPython
  51. #1,679
    Tyrrrz/YoutubeDownloader

    Downloads videos and playlists from YouTube

    1,763 Elo −416.7kC#
  52. #1,710
    zaproxy/zaproxy

    The ZAP by Checkmarx Core project

    1,760 Elo +4416.1kJava
  53. #1,737
    gildas-lormeau/SingleFile

    Web Extension for saving a faithful copy of a complete web page in a single HTML file

    1,756 Elo 22.9kJavaScript
  54. #1,748
    organicmaps/organicmaps

    🍃 Organic Maps is a free Android & iOS offline maps app for more than 12M travelers, tourists, hikers, and cyclists. It…

    1,755 Elo +5715.9kC++
  55. #1,790
    Universal-Debloater-Alliance/universal-android-debloater-next-generation

    Cross-platform GUI written in Rust using ADB to debloat non-rooted Android devices. Improve your privacy, the security…

    1,750 Elo +12810.1kRust
  56. #1,817
    pluja/awesome-privacy

    Awesome Privacy - A curated list of services and alternatives that respect your privacy because PRIVACY MATTERS.

    1,748 Elo −1020.3kTypeScript
  57. #1,831
    0x192/universal-android-debloater

    Cross-platform GUI written in Rust using ADB to debloat non-rooted android devices. Improve your privacy, the security…

    1,746 Elo +2720.4kRust
  58. #1,834
    imthenachoman/How-To-Secure-A-Linux-Server

    An evolving how-to guide for securing a Linux server.

    1,746 Elo −2432k
  59. #1,858
    mxrch/GHunt

    🕵️‍♂️ Offensive Google framework.

    1,743 Elo +2019.8kPython
  60. #1,879
    carpedm20/awesome-hacking

    A curated list of awesome Hacking tutorials, tools and resources

    1,741 Elo +3017.5k
  61. #1,882
    lissy93/personal-security-checklist

    🔒 A compiled checklist of 300+ tips for protecting digital security and privacy in 2026

    1,740 Elo +5622.7kTypeScript
  62. #1,923
    Atlas-OS/Atlas

    🚀 An open and lightweight modification to Windows, designed to optimize performance, privacy and usability.

    1,736 Elo +1822.1kPowerShell
  63. #1,928
    mytechnotalent/Reverse-Engineering

    A FREE comprehensive reverse engineering tutorial covering x86, x64, 32-bit/64-bit ARM, 8-bit AVR and 32-bit RISC-V…

    1,736 Elo +1515.1kAssembly
  64. #1,931
    HIllya51/LunaTranslator

    视觉小说翻译器 / Visual Novel Translator

    1,735 Elo +7414.1kC++
  65. #1,966
    A-poc/RedTeam-Tools

    Tools and Techniques for Red Team / Penetration Testing

    1,731 Elo +12610.1k
  66. #2,001
    rizinorg/cutter

    Free and Open Source Reverse Engineering Platform powered by rizin

    1,727 Elo +2820.2kC++
  67. #2,004
    twpayne/chezmoi

    Manage your dotfiles across multiple diverse machines, securely.

    1,727 Elo +3122.2kGo
  68. #2,048
    OpenZeppelin/openzeppelin-contracts

    OpenZeppelin Contracts is a library for secure smart contract development.

    1,722 Elo −6027.3kSolidity
  69. #2,065
    BigBodyCobain/Shadowbroker

    Open-source intelligence for the global theater. Track everything from the corporate/private jets of the wealthy, and…

    1,720 Elo +4711.5kPython
  70. #2,081
    digininja/DVWA

    Damn Vulnerable Web Application (DVWA)

    1,718 Elo +114kPHP
  71. #2,126
    projectdiscovery/subfinder

    Fast passive subdomain enumeration tool.

    1,713 Elo +3914.8kGo
  72. #2,182
    cipher387/osint_stuff_tool_collection

    A collection of several hundred online tools for OSINT

    1,708 Elo +1219.1k
  73. #2,184
    zitadel/zitadel

    ZITADEL - Identity infrastructure, simplified for you.

    1,707 Elo +1615.5kGo
  74. #2,188
    google/osv-scanner

    Vulnerability scanner written in Go which uses the data provided by https://osv.dev

    1,707 Elo +3911.5kGo
  75. #2,193
    1,707 Elo +2912.4kJavaScript
  76. #2,206
    HackTricks-wiki/hacktricks

    Welcome to the page where you will find each trick/technique/whatever I have learnt in CTFs, real life apps, and…

    1,705 Elo +2412.7kJavaScript
  77. #2,215
    cryptomator/cryptomator

    Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and…

    1,704 Elo +2416.5kJava
  78. #2,244
    projectdiscovery/nuclei-templates

    Community curated list of templates for the nuclei engine to find security vulnerabilities.

    1,701 Elo +2013.3kJavaScript
  79. #2,252
    reconurge/flowsint

    A modern platform for visual, flexible, and extensible graph-based investigations. For cybersecurity analysts and…

    1,701 Elo +8410.1kTypeScript
  80. #2,324
    openbao/openbao

    OpenBao is a software solution to manage, store, and distribute sensitive data including secrets, certificates, and…

    1,693 Elo +699kGo
  81. #2,355
    veracrypt/VeraCrypt

    Disk encryption with strong security based on TrueCrypt

    1,690 Elo +4512.1kC
  82. #2,443
    OpenVPN/openvpn

    OpenVPN is an open source VPN daemon

    1,681 Elo +2214.8kC
  83. #2,483
    simplex-chat/simplex-chat

    SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS…

    1,677 Elo +2419.6kHaskell
  84. #2,485
    1,677 Elo +2012.5kC
  85. #2,543
    logto-io/logto

    🧑‍🚀 Authentication and authorization infrastructure for SaaS and AI apps, built on OIDC and OAuth 2.1 with…

    1,672 Elo +8314.9kTypeScript
  86. #2,546
    apurvsinghgautam/robin

    AI-Powered Dark Web OSINT Tool

    1,671 Elo +417.9kPython
  87. #2,552
    OWASP/wstg

    The Web Security Testing Guide is a comprehensive Open Source guide to testing the security of web applications and web…

    1,671 Elo +4110.2kCSS
  88. #2,608
    sbilly/awesome-security

    A collection of awesome software, libraries, documents, books, resources and cools stuffs about security.

    1,667 Elo +3615.1k
  89. #2,619
    OpenCTI-Platform/opencti

    Open Cyber Threat Intelligence Platform

    1,666 Elo +8810.3kTypeScript
  90. #2,660
    google/oss-fuzz

    OSS-Fuzz - continuous fuzzing for open source software.

    1,663 Elo +1112.9kShell
  91. #2,664
    beemdevelopment/Aegis

    A free, secure and open source app for Android to manage your 2-step verification tokens.

    1,662 Elo +5813.5kJava
  92. #2,676
    TheAlgorithms/JavaScript

    Algorithms and Data Structures implemented in JavaScript for beginners, following best practices.

    1,661 Elo −8134.2kJavaScript
  93. #2,697
    owasp-amass/amass

    In-depth attack surface mapping and asset discovery

    1,660 Elo −915.5kGo
  94. #2,754
    seemoo-lab/openhaystack

    Build your own 'AirTags' 🏷 today! Framework for tracking personal Bluetooth devices via Apple's massive Find My network.

    1,656 Elo +6714kSwift
  95. #2,760
    jason5ng32/MyIP

    The best IP Toolbox. Check your IP address & geolocation, test IP for WebRTC and DNS IP leaks, run an IP quality check…

    1,655 Elo +2412.3kJavaScript
  96. #2,766
    momenbasel/PureMac

    Free, open-source macOS cleaner. CleanMyMac alternative with zero telemetry. Native SwiftUI, scheduled auto-cleaning…

    1,655 Elo +897.8kSwift
  97. #2,777
    1,654 Elo +1914.4k
  98. #2,811
    horsicq/Detect-It-Easy

    Program for determining types of files for Windows, Linux and MacOS.

    1,651 Elo +311.9kJavaScript
  99. #2,829
    pwndbg/pwndbg

    Exploit Development and Reverse Engineering with GDB & LLDB Made Easy

    1,650 Elo +2111.2kPython
  100. #2,866
    fleetdm/fleet

    Open device management

    1,647 Elo +537.2kGo

Browse all 273 in the directory →