Showing 114 open source projects for "messaging"

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  • 1
    Apache RocketMQ

    Apache RocketMQ

    Distributed messaging and streaming platform with low latency

    Apache RocketMQ is a distributed messaging and streaming platform with low latency, high performance and reliability, trillion-level capacity and flexible scalability. Messaging patterns including publish/subscribe, request/reply and streaming. Financial grade transactional message. Built-in fault tolerance and high availability configuration options base on DLedger. A variety of cross language clients, such as Java, C/C++, Python, Go.
    Downloads: 0 This Week
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  • 2
    Crossbar.io

    Crossbar.io

    Crossbar.io - WAMP application router

    Crossbar.io is an open-source networking platform for distributed and microservice applications. It implements the Web Application Messaging Protocol, which allows application components to communicate through routed remote procedure calls and publish-subscribe messaging. The platform is designed to handle the messaging layer so developers can focus on business logic instead of building custom connection, routing, and event systems. It supports real-time application architectures where services, browsers, devices, and backend components need to exchange messages reliably. ...
    Downloads: 0 This Week
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  • 3
    appwrite

    appwrite

    Secure Backend Server for Web, Mobile & Flutter Developers

    Appwrite is a self-hosted and cloud backend-as-a-service platform that provides developers with all the core APIs required to build any application. Build your entire backend within minutes and scale effortlessly using Appwrite's open-source platform. Add Authentication, Databases, Functions, Storage, and Messaging to your projects using the frameworks and languages of your choice.
    Downloads: 1 This Week
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  • 4
    Eclipse Mosquitto

    Eclipse Mosquitto

    Eclipse Mosquitto - An open source MQTT broker

    ...Its main value is providing a mature, lightweight, widely adopted MQTT implementation for reliable messaging in constrained and production environments.
    Downloads: 0 This Week
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  • 5
    ThingsBoard Message Queue (TBMQ)

    ThingsBoard Message Queue (TBMQ)

    Open-source, scalable, and fault-tolerant MQTT broker

    TBMQ is a lightweight message broker built to support ThingsBoard's IoT platform, focusing on telemetry data streaming and device communication. It uses Kafka-compatible APIs and is optimized for high-throughput messaging, device scalability, and low-latency delivery. TBMQ is ideal for IoT backends needing MQTT or Kafka-style pub/sub infrastructure.
    Downloads: 0 This Week
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  • 6
    MQTT X

    MQTT X

    Powerful cross-platform MQTT 5.0 desktop, CLI, and WebSocket client

    ...It’s easy and quick to create multiple, simultaneous online MQTT client connections, and can test the connection, publishing, and subscription functions of MQTT/TCP, MQTT/TLS, MQTT/WebSocket as well as other MQTT protocol features. MQTT stands for MQ Telemetry Transport. It is a publish/subscribe, extremely simple and lightweight messaging protocol, designed for constrained devices and low-bandwidth, high-latency or unreliable networks. To run MQTT Broker locally, EMQX is recommended: An Open-Source, Cloud-Native, Distributed MQTT Broker for IoT. After the MQTT is connected successfully, you can perform MQTT publish and subscription tests.
    Downloads: 71 This Week
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  • 7
    i2pd

    i2pd

    I2P: End-to-End encrypted and anonymous Internet

    i2pd (I2P Daemon) is a lightweight, full-featured C++ implementation of the I2P (Invisible Internet Project) protocol, designed for enabling anonymous, encrypted, and censorship-resistant communication. It functions as a router node in the I2P network, supporting services like anonymous websites (eepsites), email, file sharing, and secure messaging. i2pd is designed to be resource-efficient and suitable for running on embedded systems or routers while maintaining compatibility with the wider I2P ecosystem.
    Downloads: 13 This Week
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  • 8
    Aedes

    Aedes

    Barebone MQTT broker that can run on any stream server

    A high-performance MQTT broker for IoT applications, designed to be lightweight and scalable.
    Downloads: 1 This Week
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  • 9
    nanomsg

    nanomsg

    nanomsg library

    The nanomsg library is a simple high-performance implementation of several "scalability protocols". These scalability protocols are lightweight messaging protocols that can be used to solve a number of very common messaging patterns, such as request/reply, publish/subscribe, surveyor/respondent, and so forth. These protocols can run over a variety of transports such as TCP, UNIX sockets, and even WebSocket. This pattern is useful for solving producer/consumer problems, including load-balancing. ...
    Downloads: 0 This Week
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  • 10
    StartOS

    StartOS

    Linux server OS optimized for self-hosting

    ...Designed to run on personal servers, it provides a privacy-first interface for installing, managing, and running decentralized applications without needing technical expertise. StartOS includes services like Bitcoin nodes, messaging platforms, file hosting, and password managers, all running locally and without third-party control. With a user-friendly UI and strong emphasis on encryption and self-ownership, StartOS offers a holistic alternative to Big Tech infrastructure.
    Downloads: 11 This Week
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  • 11
    Rocket.Chat Desktop App

    Rocket.Chat Desktop App

    OSX, Windows, and Linux Desktop Clients for Rocket.Chat

    ...Engage in contextual interactions with customers irrespective of how they contact you. Ensure long-term relationships and improved business outcomes. Create custom messaging experiences within your app or website by integrating and white labeling Rocket.Chat components and enterprise features. Extend and customize your workspace with custom apps, open APIs, powerful plugins, and webhooks. Own your conversations. Choose from self-hosted, air-gapped, or secure cloud deployment options that meet your security and compliance needs.
    Downloads: 18 This Week
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  • 12
    µWebSockets

    µWebSockets

    Compliant web server for the most demanding of applications

    Being meticulously optimized for speed and memory footprint, µWebSockets is fast enough to do encrypted TLS 1.3 messaging quicker than most alternative servers can do even unencrypted, cleartext messaging. Furthermore, we partake in Google's OSS-Fuzz with a ~95% daily fuzzing coverage with no sanitizer issues. LGTM scores us flawless A+ from having zero CodeQL alerts and we compile with pedantic warning levels. µWebSockets is written entirely in C & C++ but has a seamless integration for Node.js backends. ...
    Downloads: 0 This Week
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  • 13
    nkn

    nkn

    Official Go implementation of NKN full node

    ...By incentivizing network participants with tokens, NKN aims to create a more open, efficient, and secure internet. Its architecture supports a wide range of applications, from messaging to content delivery.​
    Downloads: 0 This Week
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  • 14
    Go Micro

    Go Micro

    A framework for distributed systems development

    Go Micro is a framework for distributed systems development. Go Micro provides the core requirements for distributed systems development including RPC and Event driven communication. The Micro philosophy is sane defaults with a pluggable architecture. We provide defaults to get you started quickly but everything can be easily swapped out. Auth is built in as a first class citizen. Authentication and authorization enable secure zero trust networking by providing every service an identity and...
    Downloads: 3 This Week
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  • 15
    LavinMQ

    LavinMQ

    Ultra quick message queue and streaming server

    LavinMQ is a high-performance message queue and streaming server built for efficient message delivery. It implements AMQP 0-9-1 and MQTT 3.1.1, making it useful for applications that need reliable messaging, IoT communication, event processing, and backend service coordination. The server is written in Crystal, which helps it keep memory usage low while supporting high throughput. It is designed to handle very long queues, many client connections, and production workloads with minimal configuration. LavinMQ can be used as a lightweight alternative in RabbitMQ-compatible environments where AMQP-based clients are already common. ...
    Downloads: 1 This Week
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  • 16
    Matchbox

    Matchbox

    Painless peer-to-peer WebRTC networking for rust wasm

    Matchbox is a WebRTC-based networking library for the Bevy game engine, enabling multiplayer games to run in the browser or native environments with peer-to-peer communication. It handles matchmaking, NAT traversal, and synchronization in real-time, making it easier for game developers to add fast and scalable multiplayer features. Designed with simplicity and performance in mind, Matchbox supports both WebAssembly and desktop targets. It’s especially useful for browser-based games that need...
    Downloads: 0 This Week
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  • 17
    MediatR

    MediatR

    Simple, unambitious mediator implementation in .NET

    Simple mediator implementation in .NET. In-process messaging with no dependencies. Supports request/response, commands, queries, notifications and events, synchronous and async with intelligent dispatching via C# generic variance. You should install MediatR with NuGet. Or via the .NET Core command line interface. Either commands, from Package Manager Console or .NET Core CLI, will download and install MediatR and all required dependencies.
    Downloads: 0 This Week
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  • 18
    P2P Remote Desktop

    P2P Remote Desktop

    P2P Remote Desktop - Portable, No Configuration or Installation Needed

    p2p is a simple and educational peer-to-peer communication framework that demonstrates how devices can discover, connect, and exchange data directly without a central server. Built in C#, this project provides an easy-to-understand foundation for P2P networking, including peer discovery, messaging, and connection management. It’s particularly useful for learners and developers exploring decentralized communication or building the groundwork for P2P applications like chat systems or multiplayer games.
    Downloads: 9 This Week
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  • 19
    Foundatio

    Foundatio

    Pluggable foundation blocks for building distributed apps

    Pluggable foundation blocks for building loosely coupled distributed apps. Includes implementations in Redis, Azure, AWS, RabbitMQ and in memory (for development). When building several big cloud applications we found a lack of great solutions (that's not to say there aren't solutions out there) for many key pieces to building scalable distributed applications while keeping the development experience simple. Wanted to build against abstract interfaces so that we could easily change...
    Downloads: 0 This Week
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  • 20

    eBus

    Publish/Subscribe, Request/Reply Messaging API for Java.

    A Java middleware API supporting broker-less, type+topic-based publish/subscribe and request/reply messaging for both intra- and inter-application, object-level communication. Broker-less: messages are transmitted directly between eBus applications. There is no message broker (i.e. server) in between. Type+topic addressing: eBus clients subscribe to a message class (type) and message topic, providing stronger typing than just topic-based subscriptions.
    Downloads: 5 This Week
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  • 21
    USB Raptor

    USB Raptor

    Lock and unlock your computer using USB flash drives as keys

    ...To release the system lock user must plug the USB with the file in any USB port. Alternative the user can enable (or disable) two additional ways to unlock the system such is network messaging or password. Features • Automated USB lock and unlock function • Lock file contents are encrypted • Password to override lock (can be enabled by user) • Network command to override lock (can enabled by user) • USB drive serial number check (can be enabled by user) • Unique key for each system (can be enabled by user) • Status report function
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    Downloads: 1,144 This Week
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  • 22
    Hyper Download Manager

    Hyper Download Manager

    High-performance download manager with modern UI and browser support.

    ...Built with Python and PySide6, it features a sleek, modern interface inspired by Windows 11 aesthetics that blends seamlessly with your desktop environment. HDM replaces your browser's default download manager, offering deep integration with Chrome, Edge, Brave, and Firefox through native messaging. Experience significantly faster downloads with multi-threaded acceleration that splits files into optimal chunks. Key features include smart persistence to automatically save progress, single-instance link handling, and a strictly privacy-focused design with zero telemetry or tracking. Whether you're downloading large files or managing daily transfers, Hyper Download Manager delivers a superior, clutter-free experience.
    Downloads: 13 This Week
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  • 23
    GoldBug - Encrypted Communications

    GoldBug - Encrypted Communications

    Chat Messenger. E-Mail-Client. Websearch. Filetransfer.

    GoldBug is a decentralized & secure communication suite that offers an integrated e-mail client, an instant messenger & a file transfer. Also included is an URL-RSS-DB & a p2p web search. Current vers. w/ McEliece Algorithm. GoldBug has been 2013 - 2023 ten years just another Graphical User Interface of the Spot-On Encryption Suite. Main GUI features: Minimal & colorful Interface with Tabs in the East. Microsoft & Qt MinGW deprecated Win32 & for Compiling: ●...
    Downloads: 4 This Week
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  • 24
    GramAddict

    GramAddict

    Completely free and open-source human-like Instagram bot

    GramAddict is a fully open-source Instagram automation bot designed to simulate human-like interaction on Android devices using UI automation rather than direct API calls. It operates through ADB and UIAutomator2, meaning it interacts with the Instagram app as if it were a real user, reducing the risk of detection compared to API-based bots. The tool can automate a wide range of actions such as liking posts, following users, sending messages, and browsing content, all while introducing...
    Downloads: 0 This Week
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  • 25
    Earthstar

    Earthstar

    Storage for private, distributed, offline-first applications

    Earthstar is a local-first, peer-to-peer protocol and library for building small-scale, decentralized apps like journals, messaging systems, or shared docs. It emphasizes ease of use, offline access, and privacy, requiring no servers or advanced networking setup. Earthstar works by syncing shared data between trusted peers using append-only feeds, making it a great fit for personal tools, cooperative apps, and communities. It runs in the browser or Node.js, and its APIs are designed to feel simple and approachable even to new developers.
    Downloads: 0 This Week
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