Showing 1231 open source projects for "security operating system"

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  • 1
    SoftEther VPN

    SoftEther VPN

    Cross-platform multi-protocol VPN software

    An open-source free cross-platform multi-protocol VPN program, as an academic project from University of Tsukuba, under the Apache License 2.0. The API Suite allows you to easily develop your original SoftEther VPN Server management application to control the VPN Server (e.g. creating users, adding Virtual Hubs, disconnecting a specified VPN sessions) from JavaScript, TypeScript, C# or other languages. SoftEther VPN ("SoftEther" means "Software Ethernet") is one of the world's most powerful...
    Downloads: 115 This Week
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  • 2
    NextDNS

    NextDNS

    NextDNS CLI client (DoH Proxy)

    ...Go beyond the domain, we analyze DNS questions and answers on-the-fly (in a matter of nanoseconds) in order to detect and block malicious behavior. With usually only a few hours between domain registration and the start of an attack, our threat intelligence system is built to catch malicious domains earlier than classic security solutions. Block ads and trackers on websites and in apps, including the most devious ones. Use the most popular ads & trackers blocklists, millions of domains all updated in real-time.
    Downloads: 37 This Week
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  • 3
    OpenVPN Server Auto Setup Script

    OpenVPN Server Auto Setup Script

    OpenVPN server installer for Ubuntu, Debian, AlmaLinux, Rocky Linux

    OpenVPN Server Auto Setup Script is an automated script that enables users to quickly set up an OpenVPN server on various Linux distributions, providing a reliable and widely supported VPN solution. The project is designed to simplify deployment by handling configuration, installation, and optimization steps automatically. It supports both unattended installation with default settings and interactive setup for customization, allowing users to tailor parameters such as ports, protocols, and...
    Downloads: 100 This Week
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  • 4
    Betterfox

    Betterfox

    Firefox user.js for optimal privacy and security

    Betterfox is an opinionated configuration profile for Mozilla Firefox designed to improve everyday web browsing by making the browser faster, more private, and more secure without relying on external add-ons or third-party code. Rather than being a separate browser, it consists of a curated set of preference tweaks (user.js settings) that users apply to their Firefox profile to optimize performance and harden privacy settings. The project focuses on a minimal-impact, maximum-effect approach,...
    Downloads: 15 This Week
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  • 5
    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...
    Downloads: 70 This Week
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  • 6
    syslog-ng

    syslog-ng

    Log management solution that improves the performance of SIEM

    syslog-ng is the log management solution that improves the performance of your SIEM solution by reducing the amount and improving the quality of data feeding your SIEM. With syslog-ng Store Box, you can find the answer. Search billions of logs in seconds using full text queries with Boolean operators to pinpoint critical logs. syslog-ng Store Box provides secure, tamper-proof storage and custom reporting to demonstrate compliance. syslog-ng can deliver data from a wide variety of sources to...
    Downloads: 8 This Week
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  • 7
    Algo VPN

    Algo VPN

    Set of Ansible scripts that simplifies the setup of a personal VPN

    Introducing Algo, a self-hosted personal VPN server designed for ease of deployment and security. Algo automatically deploys an on-demand VPN service in the cloud that is not shared with other users, relies on only modern protocols and ciphers, and includes only the minimal software you need. And it’s free. For anyone who is privacy conscious, travels for work frequently, or can’t afford a dedicated IT department, this one’s for you. Really, the paid-for services are just commercial...
    Downloads: 25 This Week
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  • 8
    Gobuster

    Gobuster

    Directory/File, DNS and VHost busting tool written in Go

    Gobuster is a tool used to brute-force. This project is born out of the necessity to have something that didn't have a fat Java GUI (console FTW), something that did not do recursive brute force, something that allowed me to brute force folders and multiple extensions at once, something that compiled to native on multiple platforms, something that was faster than an interpreted script (such as Python), and something that didn't require a runtime. Provides several modes, like the classic...
    Downloads: 54 This Week
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  • 9
    Chromium

    Chromium

    The official GitHub mirror of the Chromium source

    Chromium is the open‑source foundational web browser project that drives browsers like Google Chrome, Microsoft Edge, and Opera—built for speed, stability, security, and extendability across platforms. This directory is currently in a prototyping state and may be removed in the future. As we add support for multiple coding IDE/agents, we will likely pull common prompts and instructions into a central directory with stubs for bespoke IDE/agent integration. Please check with your organization...
    Downloads: 73 This Week
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  • 10
    ZeroTier

    ZeroTier

    A smart Ethernet switch for Earth

    Connect team members from anywhere in the world on any device. ZeroTier creates secure networks between on-premise, cloud, desktop, and mobile devices. ZeroTier combines the capabilities of VPN and SD-WAN, simplifying network management. Enjoy flexibility while avoiding costly hardware vendor lock in. Set up ZeroTier in minutes with remote, automated deployment. Emulates Layer 2 Ethernet with multipath, multicast, and bridging capabilities. ZeroTier’s zero-trust networking solution provides...
    Downloads: 77 This Week
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  • 11
    Waterfox

    Waterfox

    Privacy browser built for users who value customization & control

    Waterfox is a free, open-source web browser and fork of Mozilla Firefox that’s built for users who prioritize privacy, performance, and customizability while still maintaining compatibility with modern web standards and extensions. It began as a 64-bit-focused fork and has grown into a full-featured browser available on Windows, macOS, Linux, and Android, making it a versatile alternative to mainstream browsers. Waterfox removes or disables much of Firefox’s telemetry and unnecessary data...
    Downloads: 116 This Week
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  • 12
    FlareSolverr

    FlareSolverr

    Proxy server to bypass Cloudflare protection

    FlareSolverr is a proxy server to bypass Cloudflare and DDoS-GUARD protection. FlareSolverr starts a proxy server, and it waits for user requests in an idle state using few resources. When some request arrives, it uses puppeteer with the stealth plugin to create a headless browser (Firefox). It opens the URL with user parameters and waits until the Cloudflare challenge is solved (or timeout). The HTML code and the cookies are sent back to the user, and those cookies can be used to bypass...
    Downloads: 34 This Week
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  • 13
    gost

    gost

    GO Simple Tunnel, a simple tunnel written in golang

    A simple security tunnel written in Golang. Listening on multiple ports, multi-level forward proxies - proxy chain, standard HTTP/HTTPS/HTTP2/SOCKS4(A)/SOCKS5 proxy protocols support. Probing resistance support for web proxy, TLS encryption via negotiation support for SOCKS5 proxy. Support multiple tunnel types, tunnel UDP over TCP. Local/remote TCP/UDP port forwarding, TCP/UDP Transparent proxy, Shadowsocks Protocol (TCP/UDP), and SNI Proxy. Permission control, load balancing, route...
    Downloads: 34 This Week
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  • 14
    Cryptomator

    Cryptomator

    Multi-platform transparent client-side encryption for your cloud files

    Cryptomator is a free and open source project that offers multi-platform, transparent client side encryption of your files in the cloud. It works with just about any cloud storage service; is totally transparent so you can work with your files how you normally would; and secure with a 256-bit key length AES encryption. It’s also simple and easy to use with no need for different accounts, key management, cloud access grants or cipher configurations.
    Downloads: 8 This Week
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  • 15
    Gopeed

    Gopeed

    High speed downloader that supports all platforms

    Gopeed (full name Go Speed), a high-speed downloader developed by Golang + Flutter, supports (HTTP, BitTorrent, Magnet) protocol, and supports all platforms. This project is divided into two parts, the front end uses flutter, the back end uses Golang, and the two sides communicate through the http protocol. On the unix system, unix socket is used, and on the windows system, tcp protocol is used.
    Downloads: 39 This Week
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  • 16
    nebula

    nebula

    Overlay networking tool with a focus on performance and simplicity

    Nebula is a scalable overlay networking tool with a focus on performance, simplicity and security. It lets you seamlessly connect computers anywhere in the world. Nebula is portable, and runs on Linux, OSX, Windows, iOS, and Android. It can be used to connect a small number of computers, but is also able to connect tens of thousands of computers. Nebula incorporates a number of existing concepts like encryption, security groups, certificates, and tunneling, and each of those individual...
    Downloads: 10 This Week
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  • 17
    WireGuard for Windows

    WireGuard for Windows

    Fully-featured WireGuard client for Windows

    ...The application delivers an integrated graphical and service-based experience that aligns with standard Windows networking, access control, and service management capabilities. It is the recommended method for running WireGuard on Windows systems and supports modern versions of the operating system across multiple CPU architectures. The client simplifies secure tunnel setup through key-based configuration while leveraging WireGuard’s streamlined cryptographic design for performance and reliability. Its architecture tightly integrates with the Windows networking stack to provide efficient packet handling and stable connections. ...
    Downloads: 1,379 This Week
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  • 18
    fluentbit

    fluentbit

    Fast and Lightweight Logs and Metrics processor for Linux, BSD, OSX

    ...Proven across distributed cloud and container environments. Highly available with I/O handlers to store data for disaster recovery. Granular management of data parsing and routing. Filtering and enrichment to optimize security and minimize cost. The lightweight, asynchronous design optimizes resource usage: CPU, memory, disk I/O, network. No more OOM errors! Integration with all your technology, cloud-native services, containers, streaming processors, and data backends. Fully event-driven design leverages the operating system API for performance and reliability. ...
    Downloads: 4 This Week
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  • 19
    Jellyfin Android TV

    Jellyfin Android TV

    Android TV Client for Jellyfin

    Jellyfin Android TV is a Jellyfin client for Android TV, Nvidia Shield, and Amazon Fire TV devices. We welcome all contributions and pull requests! If you have a larger feature in mind please open an issue so we can discuss the implementation before you start. Jellyfin is the volunteer-built media solution that puts you in control of your media. Stream to any device from your own server, with no strings attached. Your media, your server, your way. Jellyfin enables you to collect, manage, and...
    Downloads: 47 This Week
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  • 20
    Outline Server

    Outline Server

    Outline Manager, developed by Jigsaw

    Access to the free and open Internet. Outline makes it easy to create a VPN server, giving anyone access to the free and open Internet. Outline allows anyone to access the free and open Internet more securely by running their own VPN. Running your own VPN server with Outline increases the security of Internet access and makes the connection harder to block. VPNs are useful to protect the privacy of your communications and allow you to keep access to the Internet open. However, with most VPN...
    Downloads: 5 This Week
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  • 21
    UI.Vision RPA

    UI.Vision RPA

    Open-Source RPA Software (formerly Kantu)

    The UI Vision RPA software is the tool for visual process automation, codeless UI test automation, web scraping and screen scraping. Automate tasks on Windows, Mac and Linux. The UI Vision RPA core is open-source with enterprise security. The free and open-source browser extension can be extended with local apps for desktop UI automation. UI.Vision RPA's computer-vision visual UI testing commands allow you to write automated visual tests with UI.Vision RPA - this makes UI.Vision RPA the...
    Downloads: 14 This Week
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  • 22
    IPsec VPN Server on Docker

    IPsec VPN Server on Docker

    Docker image to run an IPsec VPN server, with IPsec/L2TP

    IPsec VPN Server on Docker is an open-source project that provides a ready-to-use Docker image for deploying a fully functional IPsec VPN server with minimal setup. It supports multiple VPN protocols, including IPsec/L2TP, Cisco IPsec, and IKEv2, allowing compatibility with a wide range of devices and operating systems. The project is designed to simplify VPN deployment by encapsulating all required components, such as Libreswan and xl2tpd, into a single containerized environment. Users can quickly launch a secure VPN server using a single command, with credentials automatically generated for convenience. The system ensures encrypted communication, protecting user data from interception on unsecured networks like public Wi-Fi. ...
    Downloads: 14 This Week
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  • 23
    Coraza

    Coraza

    OWASP Coraza WAF is a golang modsecurity compatible firewall library

    Coraza is an open-source, enterprise-grade, high-performance Web Application Firewall (WAF) ready to protect your beloved applications. It is written in Go, supports ModSecurity SecLang rulesets and is 100% compatible with the OWASP Core Rule Set. Coraza is a drop-in alternative to replace the soon-to-be abandoned Trustwave ModSecurity Engine and supports industry-standard SecLang rule sets. Coraza runs the OWASP Core Rule Set (CRS) to protect your web applications from a wide range of...
    Downloads: 5 This Week
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  • 24
    KeePass

    KeePass

    A lightweight and easy-to-use password manager

    KeePass Password Safe is a free, open source, lightweight, and easy-to-use password manager for Windows, Linux and Mac OS X, with ports for Android, iPhone/iPad and other mobile devices. With so many passwords to remember and the need to vary passwords to protect your valuable data, it’s nice to have KeePass to manage your passwords in a secure way. KeePass puts all your passwords in a highly encrypted database and locks them with one master key or a key file. As a result, you only have to...
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    Downloads: 436,683 This Week
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  • 25
    Cake

    Cake

    Distributed LLM and StableDiffusion inference

    Cake is a compact, powerful toolkit that combines a flexible TCP/UDP proxy, port forwarding system, and connection manager designed for both development and penetration testing scenarios. It enables users to create complex networking flows where traffic can be proxied, relayed, and manipulated between endpoints — useful for debugging networked applications, inspecting protocols, or tunneling traffic through different hops. The tool is designed to work with multiple protocols and supports...
    Downloads: 0 This Week
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