Showing 639 open source projects for "linux operating systems"

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  • 1
    authentik

    authentik

    The authentication glue you need

    authentik is an open-source Identity Provider that emphasizes flexibility and versatility. It can be seamlessly integrated into existing environments to support new protocols. authentik is also a great solution for implementing sign-up, recovery, and other similar features in your application, saving you the hassle of dealing with them. authentik is an open-source Identity Provider focused on flexibility and versatility. You can use authentik in an existing environment to add support for new...
    Downloads: 4 This Week
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  • 2
    SimpleX

    SimpleX

    The first messaging platform operating without user identifiers

    Other apps have user IDs: Signal, Matrix, Session, Briar, Jami, Cwtch, etc. SimpleX does not, not even random numbers. This radically improves your privacy. The video shows how you connect to your friend via their 1-time QR-code, in person or via a video link. You can also connect by sharing an invitation link. Temporary anonymous pairwise identifiers SimpleX uses temporary anonymous pairwise addresses and credentials for each user contact or group member. It allows to deliver messages...
    Downloads: 42 This Week
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  • 3
    fleet

    fleet

    Open-source platform for IT, security, and infrastructure teams

    Fleet exposes familiar concepts from traditional MDMs like custom attributes and dynamic grouping, but in a way that lets you work directly with data and events from each native operating system. A device management platform for managing and monitoring endpoints, specifically designed for IT security and compliance teams.
    Downloads: 3 This Week
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  • 4
    MaxKey

    MaxKey

    MaxKey SSO ,Leading-Edge IAM-IDaas(Identity and Access Management)

    Maxkey Single Sign On System, which means the Maximum key, Leading-Edge IAM/IDaas Identity and Access Management product, supports OAuth 2.x/OpenID Connect, SAML 2.0, JWT, CAS, SCIM, and other standard protocols, and provide Secure, Standard and Open Identity management (IDM), Access management (AM), Single Sign On (SSO), RBAC permission management and Resource management. MaxKey focuses on performance, security, and ease of use in enterprise scenarios, is widely used in industries such as...
    Downloads: 3 This Week
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  • 5
    Casdoor

    Casdoor

    An open-source Identity and Access Management (IAM)

    A UI-first Identity Access Management (IAM) / Single-Sign-On (SSO) platform supporting OAuth 2.0, OIDC, SAML and CAS, integrated with Casbin RBAC and ABAC permission management. Within a few steps, we can setup a Casdoor app and realize our authorization management. Casdoor has a front-end back-end separation architecture, with maneuverable web UI and supporting high concurrency. Casdoor is supporting multi-languages, using i18n to support multi-languages UI. For more languages support,...
    Downloads: 3 This Week
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  • 6
    Hackingtool

    Hackingtool

    ALL IN ONE Hacking Tool For Hackers

    HackingTool by Z4nzu is a large collection (“all-in-one”) of tools and scripts for penetration testing / hacking / OSINT etc. It bundles many utilities (port scanners, payload injectors, web attack tools, phishing tools, wireless attack tools, reverse engineering, etc.) into a menu interface. Includes many individual tools, often wrappers or aggregations of existing well-known tools (e.g. port scanners, web attack tools, steganography, hash cracking etc.). A menu interface offering...
    Downloads: 43 This Week
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  • 7
    thc-hydra

    thc-hydra

    Shows how easy it would be to gain unauthorized access to a system

    Number one of the biggest security holes are passwords, as every password security study shows. This tool is a proof of concept code, to give researchers and security consultants the possibility to show how easy it would be to gain unauthorized access from remote to a system. There are already several login hacker tools available, however, none does either support more than one protocol to attack or support parallelized connects. It was tested to compile cleanly on Linux, Windows/Cygwin,...
    Downloads: 37 This Week
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  • 8
    SecretScanner

    SecretScanner

    Find secrets and passwords in container images and file systems

    Deepfence SecretScanner can find unprotected secrets in container images or file systems. Secrets are any kind of sensitive or private data that gives authorized users permission to access critical IT infrastructure (such as accounts, devices, networks, cloud based services), applications, storage, databases, and other kinds of critical data for an organization. For example, passwords, AWS access IDs, AWS secret access keys, Google OAuth Key etc. are secrets. Secrets should be strictly kept...
    Downloads: 9 This Week
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  • 9
    gopass

    gopass

    The slightly more awesome standard unix password manager for teams

    ...By default your credentials are encrypted with GPG and versioned in git. This can be customized easily. The primary interface is the command line, making it an excellent choice for CLI fans, CI/CD systems or anything you can hook it up with. Gopass can also integrate with your browser so you can largely avoid the command line - if you want. gopass can operate without any dependencies but most users will use it with gpg and git. An external editor is required to use gopass edit. The same user experience on Linux, MacOS, *BSD or Windows. ...
    Downloads: 14 This Week
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  • 10
    GRR

    GRR

    GRR Rapid Response, remote live forensics for incident response

    GRR Rapid Response is an incident response framework focused on remote live forensics. It consists of a python client (agent) that is installed on target systems, and python server infrastructure that can manage and talk to clients. The goal of GRR is to support forensics and investigations in a fast, scalable manner to allow analysts to quickly triage attacks and perform analysis remotely. GRR client is deployed on systems that one might want to investigate. On every such system, once...
    Downloads: 4 This Week
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  • 11
    Permify

    Permify

    Permify is an open-source authorization service

    Permify is an open source authorization service for creating fine-grained and scalable authorization systems. With Permify, you can easily structure your authorization model, store authorization data in your preferred database, and interact with the Permify API to handle all authorization queries from your applications or services. Permify is inspired by Google’s consistent, global authorization system, Google Zanzibar. Our goal is to make Google's Zanzibar available to everyone and help...
    Downloads: 26 This Week
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  • 12
    Constantine

    Constantine

    Modular, high-performance, zero-dependency cryptography stack

    High-performance cryptography for proof systems and blockchain protocols. This library provides a constant-time implementation of cryptographic primitives with a particular focus on cryptography used in blockchains and zero-knowledge-proof systems. The library aims to be a fast, compact and hardened library for elliptic curve cryptography needs, in particular for blockchain protocols and zero-knowledge proofs system.
    Downloads: 1 This Week
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  • 13
    BeEF

    BeEF

    The browser exploitation framework project

    BeEF is short for The Browser Exploitation Framework. It is a penetration testing tool that focuses on the web browser. Amid growing concerns about web-borne attacks against clients, including mobile clients, BeEF allows the professional penetration tester to assess the actual security posture of a target environment by using client-side attack vectors. Unlike other security frameworks, BeEF looks past the hardened network perimeter and client system, and examines exploitability within the...
    Downloads: 7 This Week
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  • 14
    CloudFoundry UAA

    CloudFoundry UAA

    CloudFoundry User Account and Authentication (UAA) Server

    The UAA is a multi tenant identity management service, used in Cloud Foundry, but also available as a stand alone OAuth2 server. Its primary role is as an OAuth2 provider, issuing tokens for client applications to use when they act on behalf of Cloud Foundry users. It can also authenticate users with their Cloud Foundry credentials, and can act as an SSO service using those credentials (or others). It has endpoints for managing user accounts and for registering OAuth2 clients, as well as...
    Downloads: 0 This Week
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  • 15
    Awesome Privacy

    Awesome Privacy

    A curated list of privacy & security-focused software and services

    Awesome Privacy is a curated directory of privacy-respecting alternatives to mainstream apps and services, organized across many categories like browsers, search, email, messaging, cloud storage, and operating systems. It aims to help you choose tools that reduce tracking, fingerprinting, and data collection without sacrificing usability. Each entry highlights the project’s core properties—such as open source status, end-to-end encryption, and platform availability—so you can evaluate trade-offs quickly. Because product landscapes change fast, the list emphasizes ongoing maintenance and community discussion around quality and trust. ...
    Downloads: 0 This Week
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  • 16
    Claw Hunter

    Claw Hunter

    MDM-ready scripts for detecting and monitoring OpenClaw

    Claw Hunter is an open-source security tool designed to detect, analyze, and mitigate risks associated with autonomous AI agents, specifically those built on platforms like OpenClaw. As agentic AI systems gain popularity, they introduce a new class of security challenges because they can execute commands, access files, and interact with external systems with minimal human oversight. Claw-Hunter addresses this emerging threat landscape by providing visibility into these agents, helping...
    Downloads: 1 This Week
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  • 17
    privacy.sexy

    privacy.sexy

    Open-source tool to enforce privacy & security best-practices

    Enforce privacy & security best practices on Windows, macOS, and Linux, because privacy is sexy. Regularly applying your configuration with privacy.sexy is recommended, especially after each new release and major operating system updates. Each version updates scripts to enhance stability, privacy, and security.
    Downloads: 4 This Week
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  • 18
    PHP OAuth 2.0 Server

    PHP OAuth 2.0 Server

    A spec compliant, secure by default

    league/oauth2-server is a standards compliant implementation of an OAuth 2.0 authorization server written in PHP which makes working with OAuth 2.0 trivial. You can easily configure an OAuth 2.0 server to protect your API with access tokens, or allow clients to request new access tokens and refresh them. The latest version of this package supports PHP 7.2, PHP 7.3, PHP 7.4, PHP 8.0. The openssl and json extensions are also required. All HTTP messages passed to the server should be PSR-7...
    Downloads: 1 This Week
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  • 19
    GmSSL

    GmSSL

    Password toolbox that supports national secret

    GmSSL is an open source library of domestic commercial ciphers independently developed by Peking University. It realizes comprehensive functional coverage of national secret algorithms, standards, and secure communication protocols. It supports mainstream operating systems and processors including mobile terminals, and supports cryptographic keys, Cipher cards and other typical domestic cryptographic hardware provide feature-rich command line tools and multiple compiled language programming interfaces. GmSSL 3.0 greatly reduces memory requirements and binary code volume, does not rely on dynamic memory, and can be used in low-power embedded environments (MCU, SOC, etc.) ...
    Downloads: 2 This Week
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  • 20
    Alerta

    Alerta

    Alerta monitoring system

    Email was not designed to be used as an alert console. It is not a scalable solution when it comes to monitoring and alert visualization. A minimal installation of Alerta can be deployed quickly and easily as monitoring requirements and confidence grow. There are integrations available with Prometheus, Riemann, Nagios, Zabbix, netdata, Sensu, Pingdom and Cloudwatch. Integrating bespoke systems is easy using the API or command-line tool. Alerts are submitted in JSON format to an HTTP API....
    Downloads: 7 This Week
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  • 21
    OpenZeppelin Contracts

    OpenZeppelin Contracts

    OpenZeppelin Contracts is a library for secure smart contracts

    A library for secure smart contract development. Build on a solid foundation of community-vetted code. OpenZeppelin Contracts uses semantic versioning to communicate backward compatibility of its API and storage layout. To keep your system secure, you should always use the installed code as-is, and neither copy-paste it from online sources nor modify it yourself. The library is designed so that only the contracts and functions you use are deployed, so you don't need to worry about it...
    Downloads: 9 This Week
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  • 22
    T3MP3ST

    T3MP3ST

    Autonomous red teaming platform

    T3MP3ST is a multi-agent offensive security framework for authorized red-team research, CTFs, and security education. It wraps an existing AI coding agent with orchestration for reconnaissance, exploit exploration, validation, and reporting. The project can work through a browser War Room or CLI while relying on agents such as Claude Code, Codex, Hermes, or locally hosted models. It emphasizes reproducible benchmark claims, keyless operation, and a clear status table that separates stable...
    Downloads: 7 This Week
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  • 23
    Namecoin Core

    Namecoin Core

    Namecoin full node + wallet based on the current Bitcoin Core codebase

    Namecoin Core is the reference implementation of Namecoin, a decentralized naming system based on the Bitcoin protocol. It allows users to register and manage domain names and identities on a blockchain, aiming to provide censorship-resistant and secure alternatives to traditional DNS systems.​
    Downloads: 3 This Week
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  • 24
    Hoverfly

    Hoverfly

    Lightweight service virtualization/ API simulation / API mocking tool

    Hoverfly is a lightweight, open source API simulation tool. Using Hoverfly, you can create realistic simulations of the APIs your application depends on. Replace unreliable test systems and restrictive API sandboxes with high-performance simulations in seconds. Run on MacOS, Windows or Linux, or use native Java or Python language bindings to get started quickly. Simulate API latency or failure when required by writing custom scripts in the language of your choice.
    Downloads: 7 This Week
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  • 25
    Trillian

    Trillian

    A transparent, highly scalable and cryptographically verifiable data

    trillian is a transparent, cryptographically verifiable data store built on Merkle trees that provides append-only logs and verifiable key–value maps. It separates a storage layer from a verifiability layer, letting applications prove inclusion, consistency, and non-existence through compact cryptographic proofs. The system is designed for horizontal scale with gRPC APIs, enabling multiple frontends and sequencers to operate over a shared backend. Common use cases include certificate...
    Downloads: 8 This Week
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