Browse free open source Security software and projects below. Use the toggles on the left to filter open source Security software by OS, license, language, programming language, and project status.

  • Auth0 for AI Agents now in GA Icon
    Auth0 for AI Agents now in GA

    Ready to implement AI with confidence (without sacrificing security)?

    Connect your AI agents to apps and data more securely, give users control over the actions AI agents can perform and the data they can access, and enable human confirmation for critical agent actions.
    Start building today
  • Automated RMM Tools | RMM Software Icon
    Automated RMM Tools | RMM Software

    Proactively monitor, manage, and support client networks with ConnectWise Automate

    Out-of-the-box scripts. Around-the-clock monitoring. Unmatched automation capabilities. Start doing more with less and exceed service delivery expectations.
    Learn More
  • 1
    Securepoint SSL VPN Client

    Securepoint SSL VPN Client

    SSL VPN Client for Windows (OpenVPN).

    SSL VPN Client for Windows (OpenVPN).
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    Downloads: 1,101 This Week
    Last Update:
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  • 2
    Mullvad VPN desktop and mobile app

    Mullvad VPN desktop and mobile app

    The Mullvad VPN client app for desktop and mobile

    In a society that is increasingly determined to weaken that right, a fast, reliable and easy-to-use VPN connection is a good first step towards achieving this. By connecting to the Internet with Mullvad, we ensure that traffic to and from your device is encrypted to the highest standards, even when using public Wi-Fi in a coffee shop or hotel. We do not keep activity logs or ask for personal information, and we even encourage anonymous payments using cash or any of the accepted cryptocurrencies. Your IP address will be replaced with one of ours, ensuring that device activity and location are not linked to your user. Using Mullvad is quick and easy - just download and install the app. Don't spend time on complicated setup and multi-step registration processes. We designed Mullvad to be easy to use. Privacy is essential in a well-functioning society, as it allows norms, ethics and laws to be safely debated and challenged. Without privacy, a free and open society cannot flourish or exist.
    Downloads: 66 This Week
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  • 3

    dex2jar

    Tools to work with android .dex and java .class files

    Mirrors: * https://bitbucket.org/pxb1988/dex2jar * https://github.com/pxb1988/dex2jar dex2jar contains following compment * dex-reader is designed to read the Dalvik Executable (.dex/.odex) format. It has a light weight API similar with ASM. * dex-translator is designed to do the convert job. It reads the dex instruction to dex-ir format, after some optimize, convert to ASM format. * dex-ir used by dex-translator, is designed to represent the dex instruction dex-tools tools to work with .class files. * d2j-smali disassemble dex to smali files and assemble dex from smali files. different implementation to smali/baksmali, same syntax, but we support escape in type desc "Lcom/dex2jar\t\u1234;" * dex-writer write dex same way as dex-reader.
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    Downloads: 360 This Week
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  • 4
    AdAway

    AdAway

    Ad-blocking for your Android

    Tired of seeing ads pop up on your Android device? You can take them all away with AdAway! AdAway is an open source ad blocker for Android that uses the hosts file and local vpn. It effectively keeps pesky ads at bay so you can continue using your Android device uninterrupted by constant ads. AdAway gives you the option to add custom sources of host files. It also lets you add custom rules for your whitelist, blocklist and rules for redirects, so your ad blocking is not just generic, but tailored specifically how you want it. AdAway is currently being used by dozens of Android users worldwide.
    Downloads: 38 This Week
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  • Next-Gen Encryption for Post-Quantum Security | CLEAR by Quantum Knight Icon
    Next-Gen Encryption for Post-Quantum Security | CLEAR by Quantum Knight

    Lock Down Any Resource, Anywhere, Anytime

    CLEAR by Quantum Knight is a FIPS-140-3 validated encryption SDK engineered for enterprises requiring top-tier security. Offering robust post-quantum cryptography, CLEAR secures files, streaming media, databases, and networks with ease across over 30 modern platforms. Its compact design, smaller than a single smartphone image, ensures maximum efficiency and low energy consumption.
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  • 5
    NbuExplorer
    Nokia NBU, NBF, NFB, NFC and ARC backup file parser, extractor and viewer. It can help you to check content of backup or extract files from it. Requires MS .Net Framework 2
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    Downloads: 164 This Week
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  • 6
    Shadowsocks for Android

    Shadowsocks for Android

    A shadowsocks client for Android

    Shadowsocks for Android is the Android client for the widely-used, high-performance encryption protocol project Shadowsocks. It is a secure socks5 proxy for Android that is designed to protect your internet traffic. Shadowsocks for Android allows you to surf the internet privately and securely at all times through your Android device. It features bleeding-edge techniques with Asynchronous I/O and Event-driven programming. It is completely free and open-source and is available for other platforms as well.
    Downloads: 16 This Week
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  • 7
    IOS6 and recent iTunes updates have broken a few features. We have made some partial fixes, but they are not complete. If you'd like to help support our development, or take over the development please let us know. Explore the internal file structure of your iphone (or of a seized phone in the case of forensic teams) using either the iphone's own backup files or (for jail broken iphones) ssh. Viewing of plist, sqlite, and hex are supported. IOS 5 is now supported iOS 6 only partially works at the moment (some features fail or are missing). Unfortunately paid work means we can't fix this right now, but would welcome anyone else submitting patches.
    Downloads: 63 This Week
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  • 8
    Droid Pentest help you to find all android apps for penetration testing and hacking so you can make complete penetration test platform .
    Downloads: 11 This Week
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  • 9
    DevHub

    DevHub

    Filter issues, activities and notifications

    DevHub is a mobile and desktop app to help you manage GitHub Notifications and stay on top of repository activities. Save custom searches, apply filters and don't miss anything important. Create columns for the repositories and people that matters to you; receive desktop push notifications; manage notifications, issues, pull requests and activities; bookmark things for later. Choose between two modes, desktop or menubar; enable push notifications only for the columns you want. All columns support a common set of filters, like bot, label, issue status, text, etc. The Issues & Pull Requests columns are special: they give you all the power of GitHub Advanced Search on your hands (filter by assignee, number of comments, etc. Create a column for each person and see what they are up to commits, comments, issues, pull requests, tags, releases, etc.
    Downloads: 1 This Week
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  • Turn traffic into pipeline and prospects into customers Icon
    Turn traffic into pipeline and prospects into customers

    For account executives and sales engineers looking for a solution to manage their insights and sales data

    Docket is an AI-powered sales enablement platform designed to unify go-to-market (GTM) data through its proprietary Sales Knowledge Lake™ and activate it with intelligent AI agents. The platform helps marketing teams increase pipeline generation by 15% by engaging website visitors in human-like conversations and qualifying leads. For sales teams, Docket improves seller efficiency by 33% by providing instant product knowledge, retrieving collateral, and creating personalized documents. Built for GTM teams, Docket integrates with over 100 tools across the revenue tech stack and offers enterprise-grade security with SOC 2 Type II, GDPR, and ISO 27001 compliance. Customers report improved win rates, shorter sales cycles, and dramatically reduced response times. Docket’s scalable, accurate, and fast AI agents deliver reliable answers with confidence scores, empowering teams to close deals faster.
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  • 10
    KeePass for J2ME is a J2ME port of KeePass Password Safe, a free, open source, light-weight and easy-to-use password manager. You can store passwords in a highly-encrypted database on a mobile phone, and view them on the go.
    Downloads: 4 This Week
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  • 11
    Revenssis Ethical Hacking Suite

    Revenssis Ethical Hacking Suite

    Fully featured network, wireless and web app pentesting suite.

    Nicknamed as the "Smartphone Version of Backtrack", Revenssis Penetration Suite is a set of all the useful types of tools used in Computer and Web Application security. Tools available in it include: Web App scanners, Encode/Decode & Hashing tools, Vulnerability Research Lab, Forensics Lab, plus the must-have utilities (Shell, SSH, DNS/WHOIS Lookup, Traceroute, Port Scanner, Spam DB Lookup, Netstat... etc). All these fitting in an application approx. 10MB (post installation).
    Downloads: 22 This Week
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  • 12
    MicroZip

    MicroZip

    Create,extract and encrypt ZIP,GZIP,TAR,BZIP2,TAZ files on Java mobile

    MicroZip is a powerful file compression and encryption utility for mobile phones which allows you to create and extract compressed archives in multiple formats and encrypt sensitive information with powerful AES-256 encryption. MicroZip can create and extract ZIP,TAR,TGZ,TBZ2 archives and extract many other formats as JAR,GZ,BZ2,TBZ,WAR,BZIP2,GZIP,Z,TAZ,CBZ etc. MicroZip allows you to extract selected files without extracting the whole ZIP archive. MicroZip also supports encrypted ZIP archives with both classic ZIP encryption and AES 256 encryption algorithm.
    Downloads: 7 This Week
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  • 13
    NASH OS

    NASH OS

    Nash Operating System for Modern Ecommerce

    The all-built-in-one, automatic, ready-to-go out-of-box, easy-to-use state-of-the-art, and really awesome NASH OS! Over 25,000+ flexible features and controls and all scalable!! The most powerful solution ever built to instantly deliver new heights of online ecommerce enterprise to you.
    Downloads: 2 This Week
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  • 14
    Smoke Crypto Chat Messenger for Android

    Smoke Crypto Chat Messenger for Android

    Smoke: Android Crypto Chat Messenger

    Smoke is an encrypting chat messenger for Android written in Java. Please read the Web site for more information: https://textbrowser.github.io/smoke/ (original, current) https://www.amazon.com/dp/3752691999/ https://smokeappope.sourceforge.io/ (old, third party archive) Smoke App OPE - Open Personal Encryption Download Android APK Installer: https://sourceforge.net/projects/smokeappope/files/ Smoke Source: https://github.com/textbrowser/smoke SmokeStack Source: https://github.com/textbrowser/smokestack (Android) https://github.com/textbrowser/spot-on (Desktop) Smoke appears to be one of the first projects with an open source mobile encrypting chat server., an decentralized and easily-configurable chat server. Smoke is known as the first mobile McEliece Messenger: https://tarnkappe.info/artikel/english/mceliece-messaging-smoke-crypto-chat-the-first-mobile-mceliece-messenger-published-as-a-stable-prototype-worldwide-279847.html
    Downloads: 2 This Week
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  • 15
    PalmSecure (pSecure for short) is the opensource adaptation of the discontinued Toysoft program, SecureX. The source rights were purchased from them, and, after meeting their conditions, it was made free for everyone to use. Please use it!!!!
    Downloads: 1 This Week
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  • 16
    Symbian OS implemetation of NIST-Recommended Random Number Generator Based on ANSI X9.31 using AES written in Symbian C++ and tested on Symbian 9.x platform (especially Nokia N73, N80, N82 and E51).
    Downloads: 0 This Week
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  • 17

    Androick

    Forensic analysis helper tool for android

    Project now on Github : https://github.com/Flo354/Androick
    Downloads: 0 This Week
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  • 18
    This is an Android front end for the PasswordSafe password management utility. This utility allows you to easily and securely manage multiple passwords, in a format that is compatible with the original PasswordSafe utility.
    Downloads: 0 This Week
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  • 19
    Barada
    Barada (Barada Aint Respecting Any Deceptive Adversaries) is a PAM module designed to provide two-factor authentication support. There is companion software called Gort which runs on Android devices, essentially turning your phone into a SecureID token. The PAM module is available in the repositories for Debian based distributions. Gort, the Android client, is available from the android market (https://play.google.com/store/apps/details?id=net.sf.crypt.gort)
    Downloads: 0 This Week
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  • 20
    Bitwarden Mobile Application

    Bitwarden Mobile Application

    The mobile app vault (iOS and Android)

    The Bitwarden mobile application is written in C# with Xamarin Android, Xamarin iOS, and Xamarin Forms. Manage, store, secure, and share unlimited passwords across unlimited devices from anywhere. Bitwarden delivers open-source password management solutions to everyone, whether at home, at work, or on the go. Generate strong, unique, and random passwords based on security requirements for every website you frequent. Bitwarden Send quickly transmits encrypted information, files and plaintext, directly to anyone. Passwords are protected with advanced end-to-end encryption (AES-256 bit, salted hashtag, and PBKDF2 SHA-256) so your data stays secure and private. Generate strong, unique, and random passwords based on security requirements for every website you frequent. Bitwarden translations exist in 40 languages and are growing, thanks to our global community.
    Downloads: 0 This Week
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  • 21
    CRePE (Context-Related Policy Enforcement) aims to support efficient context-related policy enforcement on mobile platforms. A context-related policy is a policy which enforcing requires the awareness of the user/device context.
    Downloads: 0 This Week
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  • 22
    EXOS is a J2ME library for mobile devices to securely exchange data over the Internet with multiple groups of people, who are permitted to read different parts of the data only. EXOS takes care of authentication and key exchange (involves a server).
    Downloads: 0 This Week
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  • 23
    "HelloWorld goes mobile" is a decentralized social network for mobile phones running under Google Android. It is based on XML and different JAVA encryption technologies. The software-structure is based on the desktop-orientated project "HelloWorld".
    Downloads: 0 This Week
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  • 24
    Java Random Password Generator j2me
    Inserendo una password abbastanza lunga risulta praticamente impossibile riuscire a indovinarla. Creando password non pronunciabili e quindi completamente random, ci si mette al sicuro attacchi di tipo dizionario. E' una versione per Java Mobile.J2me
    Downloads: 0 This Week
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  • 25
    KeePassGo

    KeePassGo

    KeePass viewer for WebOS

    KeePassGo is a WebOS app that can open a native KeePass database (.kdbx) file and provides an GUI to view your KeePass entries.
    Downloads: 0 This Week
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