Showing 497 open source projects for "security os"

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  • 1
    Atlas OS

    Atlas OS

    An open and lightweight modification to Windows

    Atlas is an open-source, script-based modification for Windows that enhances usability, privacy, and performance. It strips unnecessary background services, disables telemetry, and includes gaming and latency optimizations to make Windows feel lean and fast for enthusiasts.
    Downloads: 2,355 This Week
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  • 2
    Cloudflare OS

    Cloudflare OS

    Agent workspace built on Cloudflare Workers for creating documents

    Cloudflare OS is an open-source AI productivity environment originally developed for internal use across Cloudflare. It combines an agent chat interface, company-specific knowledge, sandboxed application creation, and a capability-based security framework. Users can ask agents to prepare documents, build dashboards, create collaborative tools, or work with connected services.
    Downloads: 11 This Week
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  • 3
    Bottlerocket OS

    Bottlerocket OS

    An operating system designed for hosting containers

    Bottlerocket is a free and open-source Linux-based operating system meant for hosting containers. Bottlerocket focuses on security and maintainability, providing a reliable, consistent, and safe platform for container-based workloads. This is a reflection of what we've learned building operating systems and services at Amazon. The base operating system has just what you need to run containers reliably, and is built with standard open-source components. Bottlerocket-specific additions focus...
    Downloads: 0 This Week
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  • 4
    Tock OS

    Tock OS

    A secure embedded operating system for microcontrollers

    Tock is a secure, embedded operating system designed for microcontrollers and low-power hardware platforms. Written in Rust, it uses a novel kernel architecture where the OS runs a minimal trusted core and all userland code, including device drivers, is sandboxed and isolated. Tock is ideal for IoT devices, wearables, and embedded research projects where reliability and safety are critical. Its capability-based security model and preemptive multitasking allow developers to safely run multiple applications on constrained devices with confidence in memory and fault isolation.
    Downloads: 0 This Week
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  • 5
    Tor Browser

    Tor Browser

    Browser for using Tor on Windows, Mac OS X or Linux

    Tor Browser enables you to use Tor on Windows, Mac OS X, or Linux without needing to install any software. Tor is a software that bounces your communications around a distributed network of relays run by volunteers. This effectively prevents anyone watching your Internet connection from learning what sites you visit; it prevents the sites you visit from learning your physical location; and allows you access to sites which are blocked. Tor Browser can run off a USB flash drive, comes with...
    Downloads: 1,408 This Week
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  • 6
    Vanilla OS Live ISO Builder

    Vanilla OS Live ISO Builder

    Vanilla OS Live ISO Builder.

    Vanilla OS Live ISO provides the official live environment and installer for Vanilla OS, a Linux distribution that blends immutability, security, and user-friendliness. Built on Ubuntu with an immutable root file system, Vanilla OS uses ABRoot and Distrobox to offer transactional updates and containerized app environments. The live ISO project enables users to boot and test the OS without installation, and includes the Calamares installer to simplify the setup process. ...
    Downloads: 57 This Week
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  • 7
    Proton OS

    Proton OS

    OS built for security & privacy for small businesses.

    A Debian-based Linux® operating system built with small businesses in mind. It provides a stable, secure, privacy-focused, and familiar desktop experience without unnecessary complexity, advertising, or mandatory online accounts. Proton OS is designed to give businesses greater control over their computers while reducing dependence on proprietary operating systems and unnecessary data collection. Key principles include: • Privacy: No unnecessary telemetry or advertising-driven features. • Security: Automatic security updates and security-focused enabled by defaults...
    Downloads: 964 This Week
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  • 8
    nsjail

    nsjail

    A lightweight process isolation tool that utilizes Linux namespaces

    A lightweight process isolation tool that utilizes Linux namespaces, cgroups, rlimits and seccomp-bpf syscall filters, leveraging the Kafel BPF language for enhanced security. It utilizes Linux namespace subsystem, resource limits, and the seccomp-bpf syscall filters of the Linux kernel.
    Downloads: 1 This Week
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  • 9
    OpenSSH

    OpenSSH

    Win32 port of OpenSSH

    OpenSSH is a complete implementation of the SSH protocol (version 2) for secure remote login, command execution and file transfer. It includes a client ssh and server sshd, file transfer utilities scp and sftp as well as tools for key generation (ssh-keygen), run-time key storage (ssh-agent) and a number of supporting programs. This is a port of OpenBSD's OpenSSH to most Unix-like operating systems, including Linux, OS X and Cygwin. Portable OpenSSH polyfills OpenBSD APIs that are not...
    Downloads: 292 This Week
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  • 10
    hashcat

    hashcat

    World's fastest and most advanced password recovery utility

    hashcat is the world's fastest and most advanced password recovery utility, supporting five unique modes of attack for over 300 highly-optimized hashing algorithms. hashcat currently supports CPUs, GPUs, and other hardware accelerators on Linux, Windows, and macOS, and has facilities to help enable distributed password cracking. Download the latest release and unpack it in the desired location. Please remember to use 7z x when unpacking the archive from the command line to ensure full file...
    Downloads: 76 This Week
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  • 11
    YARA

    YARA

    The pattern matching swiss knife for malware researchers

    YARA is a tool aimed at (but not limited to) helping malware researchers to identify and classify malware samples. With YARA you can create descriptions of malware families (or whatever you want to describe) based on textual or binary patterns. Each description, a.k.a rule, consists of a set of strings and a boolean expression which determines its logic. YARA is multi-platform, running on Windows, Linux and Mac OS X, and can be used through its command-line interface or from your own Python...
    Downloads: 61 This Week
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  • 12
    Status - a Mobile Ethereum OS

    Status - a Mobile Ethereum OS

    A free (libre) open source, mobile OS for Ethereum

    Status is a secure messaging app, crypto wallet, and Web3 browser built with state-of-the-art technology. Integrated into one powerful super app for private secure communication. Safely send, store and receive cryptocurrencies including ERC20 and ERC721 tokens with the Status crypto wallet. Only you hold the keys to your funds. Status' intuitive design protects you and your funds from attacks. Status uses an open-source, peer-to-peer protocol, and end-to-end encryption to protect your...
    Downloads: 0 This Week
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  • 13
    FLARE VM

    FLARE VM

    A collection of software installations scripts for Windows systems

    FLARE VM is a security-focused Windows workstation distribution designed for malware analysis, reverse engineering, penetration testing, and threat hunting. It bundles a curated set of tools—disassemblers, debuggers, decompilers, virtualization, forensics utilities, packet capture tools, exploit frameworks, and hex editors—preconfigured to work together. The environment configures paths, dependencies, environment variables, and common tool integrations so analysts can focus on tasks rather...
    Downloads: 119 This Week
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  • 14
    Rufus

    Rufus

    Utility to create bootable USB flash drives

    Rufus is a standalone app designed to format and create a bootable USB drive for a large variety of ISOs. The app is just over 1MB in size and is notably faster than similar competitor apps such as the Windows 7 USB utility, Universal USB Installer, and UNetbootin. Rufus can come in handy when you need to simply format a USB drive, install an OS on a machine that lacks a CD/DVD-ROM drive, or when you need to boot an operating system temporarily without intentions of actually installing...
    Downloads: 997 This Week
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  • 15
    VirtualBox

    VirtualBox

    Virtualization software for x86_64 hardware

    ...It supports a wide variety of host platforms (Linux, Windows, macOS, Solaris, etc.) and guest OSes, enabling, for example, running Linux on a Windows PC, running Windows Server on a Linux host, or even legacy OSes in a controlled environment. This flexibility makes VirtualBox ideal for developers, testers, sysadmins, or hobbyists who need different OS environments, want to test software across systems, or need isolation for development, sandboxing, or security experiments. VirtualBox offers both a user-friendly GUI as well as a command-line interface and headless mode, making it useful for desktop usage as well as server or automated environments.
    Downloads: 285 This Week
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  • 16
    LiteBox

    LiteBox

    A security-focused library OS supporting kernel execution

    LiteBox is a security-focused “library OS” sandboxing project that aims to shrink the interface between an application and its host environment to reduce attack surface. Instead of relying solely on broad OS-level permissions, it focuses on isolating workloads by tightly controlling the boundary where code interacts with host services and system resources.
    Downloads: 1 This Week
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  • 17
    ArkOS

    ArkOS

    Another rockchip Operating System

    Another rockchip Operating System. This OS came about from an initial fork of The Retro Arena to support a roms folder on a NTFS partition so that the management of roms could be done by simply putting you SD card into an appropriate card reader on a Windows 10 computer. Through various upgrades and tweaks overtime, it has diverged significantly from TheRA and it's time to rebrand this distro. With suggestions provided by community members, ArkOS was chosen.
    Downloads: 153 This Week
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  • 18
    PDFRip

    PDFRip

    A multi-threaded PDF password cracking utility

    A multi-threaded PDF password cracking utility equipped with commonly encountered password format builders and dictionary attacks. pdfrip is a fast multithreaded PDF password cracking utility written in Rust with support for wordlist-based dictionary attacks, date and number range bruteforcing, and a custom query builder for password formats. You can write your own queries like STRING{69-420} with the -q option which would generate a wordlist with the full number range. You can pass in an...
    Downloads: 25 This Week
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  • 19
    The Astrid Book

    The Astrid Book

    The canonical reference for Astrid OS

    The Astrid Book is the canonical reference project for Astrid OS. It documents the kernel, capsule model, host ABI, bus, and security model in one structured technical book. The project is built with mdBook, making it suitable for browsing, serving, and maintaining as developer documentation. It is intended to act as a stable reference for how Astrid OS components interact and how its core abstractions are defined.
    Downloads: 0 This Week
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  • 20
    YubiKey Guide

    YubiKey Guide

    Community guide to using YubiKey for GnuPG and SSH

    The YubiKey-Guide by drduh is a community-maintained, in-depth tutorial and reference on how to use a YubiKey (hardware authentication token) with GPG, SSH, and related cryptographic setups. It explains how to generate, manage, and use keys, configure pin / touch policies, and integrate the YubiKey into secure workflows. Configuration instructions for requiring touch for operations. Step-by-step instructions for generating GPG keys and migrating them to a YubiKey. Troubleshooting and advice...
    Downloads: 1 This Week
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  • 21
    VoltageOS
    ...You have reached the gateway of a simplistic, no frills pure AOSP experience that will not let you down in getting through every day uninterrupted by inconveniences, with just the right dab of customisations. Be it requiring safetynet for banking or payment apps to receiving the latest security patches from Google as soon as they're released, we've got you covered. It doesn't end there. Sit back, relax and let the system theme your device according to your preferences with Monet support. Step in and begin your journey with Voltage OS.
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    Downloads: 1,327 This Week
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  • 22
    iDeal OS

    iDeal OS

    The alternative OS, secure by design.

    Welcome to iDeal OS iDeal OS is a computer operating system, a custom "respin" based on the powerful MX Linux and Debian distributions, with enhanced privacy and security settings enabled by default. The main goals of iDeal OS are privacy and security: you can surf, shop, trade and bank online with complete peace of mind, without annoying ads, tracking, logging, bugs, viruses or unwanted disclosure of personal information.
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    Downloads: 434 This Week
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  • 23
    Amphiptere-OS

    Amphiptere-OS

    Linux-based Linux distro for Purple Team, Red Team & Blue Team cybers

    ...Official Youtube: https://youtube.com/@amphiptere-os Watch demos & OS walkthroughs here
    Downloads: 90 This Week
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  • 24
    B OS

    B OS

    "A fast, lightweight, and secure Linux operating system for all."

    ...It comes with a carefully selected set of pre-installed applications, including a web browser, office suite, file manager, and multimedia tools, so users can be productive immediately. Security is a core principle of B OS, featuring enhanced configurations and tools that protect users from online threats, ensuring reliability in personal, educational, and professional environments. Offline installer support makes B OS ideal for areas with limited connectivity, while regular updates guarantee long-term stability. Fully open-source and free to use, B OS empow
    Downloads: 41 This Week
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  • 25
    Azure Linux

    Azure Linux

    General purpose Linux OS for Azure

    Azure Linux is Microsoft’s open-source Linux distribution built and optimized for Azure environments. It is designed to provide a secure and reliable operating system for virtual machines, containers, and bare-metal platforms. The distribution is derived from Fedora Linux sources while adding Azure-specific engineering for cloud operations. It uses the RPM package ecosystem, which makes it familiar to administrators and developers who already work with RPM-based Linux systems. Azure Linux...
    Downloads: 33 This Week
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