Showing 459 open source projects for "communication"

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  • 1
    Fluxer

    Fluxer

    A free and open source instant messaging and VoIP platform

    Fluxer is a free and open-source instant messaging and VoIP platform designed to provide communities, friend groups, and teams with a self-hostable communication alternative. The project combines real-time chat, voice calling, and community features into a unified system that can be deployed independently rather than relying on centralized proprietary services. It is built with a modern TypeScript stack and focuses on delivering a clean user experience alongside flexible infrastructure options for developers who want control over their communication environment. ...
    Downloads: 127 This Week
    Last Update:
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  • 2
    HP Socket

    HP Socket

    High Performance TCP/UDP/HTTP communication component

    ...Client Based on Event-Select/POLL communication model, each component object creates a communication thread and manages a Socket connection. Client components are suitable for small-scale client scenarios.
    Downloads: 34 This Week
    Last Update:
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  • 3
    Service Bus Explorer

    Service Bus Explorer

    Connect to a Service Bus namespace and administer messaging entities

    ...The tool provides advanced features like import/export functionality or the ability to test topics, queues, subscriptions, relay services, notification hubs, and events hubs. Microsoft Azure Service Bus is a reliable information delivery service. The purpose of this service is to make communication easier. When two or more parties want to exchange information, they need a communication facilitator. Service Bus is a brokered, or third-party communication mechanism. This is similar to postal service in the physical world. Postal services make it very easy to send different kinds of letters and packages with a variety of delivery guarantees, anywhere in the world. ...
    Downloads: 40 This Week
    Last Update:
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  • 4
    LocalSend

    LocalSend

    An open-source cross-platform alternative to AirDrop

    LocalSend is a free, open-source app that allows you to securely share files and messages with nearby devices over your local network without needing an internet connection. LocalSend is a cross-platform app that enables secure communication between devices using a REST API and HTTPS encryption. Unlike other messaging apps that rely on external servers, LocalSend doesn't require an internet connection or third-party servers, making it a fast and reliable solution for local communication.
    Downloads: 257 This Week
    Last Update:
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  • 5
    Spacebar

    Spacebar

    Free selfhostable discord compatible communication platform

    Spacebar is a free, open-source, self-hostable communication platform designed to be compatible with Discord-style clients and bots. It includes chat, voice, and video capabilities while giving server operators more control over infrastructure and configuration. The project emphasizes decentralization, customization, and avoiding a single point of failure. It is intended to let users run their own communication service while keeping compatibility with familiar Discord-like tooling. ...
    Downloads: 6 This Week
    Last Update:
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  • 6
    MobileIMSDK

    MobileIMSDK

    The original full-platform IM communication layer framework

    MobileIMSDK is a lightweight cross-platform instant messaging communication framework designed for real-time chat and push-style communication. It supports multiple client platforms, including iOS, Android, Java, HTML5, mini programs, UniApp, and HarmonyOS Next, with a Netty-based server side. The framework is notable for supporting UDP, TCP, and WebSocket protocols in the same open-source IM communication layer.
    Downloads: 1 This Week
    Last Update:
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  • 7
    MQTTnet

    MQTTnet

    High performance .NET library for MQTT based communication

    MQTTnet is a high-performance .NET library for MQTT-based communication. It provides an MQTT client and an MQTT server (broker) and supports the MQTT protocol up to version 5. TLS support for client and server (but not UWP servers). Extensible communication channels (e.g. In-Memory, TCP, TCP+TLS, WS). Lightweight (only the low-level implementation of MQTT, no overhead). Performance optimized (processing ~150.000 messages/second).
    Downloads: 10 This Week
    Last Update:
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  • 8
    URH (Universal Radio Hacker)

    URH (Universal Radio Hacker)

    Universal Radio Hacker: Investigate Wireless Protocols Like A Boss

    Universal Radio Hacker (URH) is a tool for investigating unknown wireless communication protocols. It supports signal capturing, decoding, modulation analysis, and protocol reverse engineering through an intuitive graphical interface. URH is used in research, security testing, and hobbyist electronics for understanding proprietary RF systems, IoT device communication, and embedded protocols.
    Downloads: 35 This Week
    Last Update:
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  • 9
    qaul.net

    qaul.net

    Internet Independent Wireless Mesh Communication App

    qaul.net is a decentralized communication platform designed to function independently of traditional internet infrastructure. It facilitates peer-to-peer messaging and file sharing over wireless mesh networks, making it ideal for scenarios where internet access is unreliable or unavailable. By leveraging mesh networking, qaul.net ensures that users can maintain communication even in isolated or disrupted environments.​
    Downloads: 0 This Week
    Last Update:
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  • 10
    Rocket.Chat Community Version

    Rocket.Chat Community Version

    The Leading Open Source Communication Hub | Community Version

    ...Highly scalable, our solution increases business efficiency by bringing messages, video calls, file sharing and all team communication into one place. +10M users trust Rocket.Chat to obtain: - The best cost-benefit enterprise communication platform - A remote-first platform for team collaboration - Data-privacy ensured (GDPR, HIPAA, CCPA, you name it) - Seamless adaptation for all kinds of
    Downloads: 3 This Week
    Last Update:
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  • 11
    xmpp.js

    xmpp.js

    XMPP for JavaScript

    xmpp.js is a JavaScript library for the Extensible Messaging and Presence Protocol (XMPP), facilitating real-time communication features like instant messaging and presence information.
    Downloads: 0 This Week
    Last Update:
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  • 12
    Freenet Core

    Freenet Core

    Declare your digital independence

    Freenet Core is the backbone of the Freenet Project, a peer-to-peer platform for censorship-resistant, anonymous publishing and communication. It is designed to provide strong privacy by routing requests through multiple nodes using a "darknet" architecture where users connect only to trusted peers. Data is stored in a distributed manner and automatically replicated based on demand. Freenet is optimized for users who want to securely share files, host anonymous websites (known as "freesites"), and communicate without fear of surveillance or takedown. ...
    Downloads: 8 This Week
    Last Update:
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  • 13
    Wesh Network Toolkit

    Wesh Network Toolkit

    Async Mesh Network Protocol for Extreme Communication

    With Wesh's toolkit, building p2p apps has never been simpler. Wesh network is a decentralized extreme communication protocol. Wesh provides a secured, distributed and asynchronous communication protocol, both with or without internet access using IPFS and direct transports such as BLE and proximity drivers. Wesh Protocol provides end-to-end encryption and perfect forward secrecy for all the exchanged messages. Distributed p2p transmissions and hosting over IPFS powered by CRDT algorithm. ...
    Downloads: 0 This Week
    Last Update:
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  • 14
    AyuGram Desktop

    AyuGram Desktop

    Desktop Telegram client with good customization and Ghost mode.

    AyuGram Desktop is a powerful, open-source Telegram desktop client designed for users who want deeper control, privacy, and customization. Built as a fork of Telegram Desktop, it extends the core experience with advanced features while staying fast and familiar. AyuGram focuses heavily on privacy tools like ghost mode and anti-recall to give users more control over their messaging behavior. The app offers extensive UI and font customization, allowing users to tailor the interface to their...
    Downloads: 278 This Week
    Last Update:
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  • 15
    BroadcastChannel

    BroadcastChannel

    BroadcastChannel to send data between different browser-tabs or nodejs

    BroadcastChannel is a JavaScript library for sending messages between different browser tabs, Node.js processes, and Deno Deploy instances. It provides a consistent communication layer for environments that need cross-context coordination without relying on a server. The library works completely client-side and offline in supported browser use cases. It is tested across old browsers, modern browsers, Web Workers, iframes, and Node.js. It also includes leader election over channels, which helps multiple contexts decide which one should perform a shared task. ...
    Downloads: 1 This Week
    Last Update:
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  • 16
    Toxic

    Toxic

    A Tox-based instant messaging and video chat client

    Toxic is a Tox protocol-based command-line messenger for Linux, offering fully encrypted, decentralized, and serverless instant messaging. It includes features such as text messaging, file transfer, and audio calls—all without requiring user accounts or central servers. Toxic is designed for power users who prefer a minimalist interface, operating entirely within a terminal while delivering strong privacy through the Tox peer-to-peer protocol. It’s lightweight, fast, and ideal for use in...
    Downloads: 42 This Week
    Last Update:
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  • 17
    Spacebar Server

    Spacebar Server

    A reimplementation of the Discord.com backend, built with Typescript

    ...The project is useful for developers interested in Discord-like systems, real-time communication protocols, and independently operated chat services. Some compatibility gaps still exist, so not every Discord client can connect perfectly to a Spacebar instance.
    Downloads: 0 This Week
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  • 18
    OpenGNB

    OpenGNB

    GNB is open source de-centralized SDVN to achieve layer3 network

    OpenGNB is an open-source implementation of a 5G NR (New Radio) gNodeB base station, aimed at democratizing access to mobile communication infrastructure. Built using SDR (Software Defined Radio) principles, it allows researchers, developers, and enthusiasts to deploy and experiment with 5G RAN technology using commodity hardware. OpenGNB integrates with open-core networks and provides a valuable tool for advancing innovation in private 5G networks, research labs, and rural communication deployments.
    Downloads: 0 This Week
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  • 19
    SimpleX

    SimpleX

    The first messaging platform operating without user identifiers

    ...Temporary anonymous pairwise identifiers SimpleX uses temporary anonymous pairwise addresses and credentials for each user contact or group member. It allows to deliver messages without user profile identifiers, providing better meta-data privacy than alternatives. Many communication platforms are vulnerable to MITM attacks by servers or network providers. To prevent it SimpleX apps pass one-time keys out-of-band when you share an address as a link or a QR code. Double-ratchet protocol. OTR messaging with perfect forward secrecy and break-in recovery. NaCL cryptobox in each queue to prevent traffic correlation between message queues if TLS is compromised.
    Downloads: 57 This Week
    Last Update:
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  • 20
    Novu

    Novu

    The open-source notification infrastructure

    ...A digest engine that aggregates multiple events in to a single precise notification. Using Novu API to handle all user preferences and subscriptions across channels. UI components included. A smart API to centralize all communication channels in a single place: E-mail, SMS, Direct, Push and many more. Manage content for all channels and in multiple languages without the need to redeploy your code.
    Downloads: 0 This Week
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  • 21
    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 messages from third parties. ...
    Downloads: 1 This Week
    Last Update:
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  • 22
    OpenMQTTGateway

    OpenMQTTGateway

    MQTT gateway for ESP8266, ESP32, Sonoff RF Bridge or Arduino

    OpenMQTTGateway project goal is to concentrate in one firmware different technologies and protocols, decreasing, by the way, the number of physical bridges needed, and hiding the different technologies singularity behind a simple & widespread communication protocol; MQTT. MQTT gateway for ESP8266, ESP32, Sonoff RF Bridge or Arduino with bidirectional 433mhz/315mhz/868mhz, Infrared communications, BLE, Bluetooth, beacons detection, mi flora, mi jia, LYWSD02, LYWSD03MMC, Mi Scale, TPMS, BBQ thermometer compatibility, SMS & LORA. OpenMQTTGateway supports very mature technologies like basic 433mhz/315mhz protocols & infrared (IR) so you can make your old dumb devices "smart" and avoid throwing them away. ...
    Downloads: 48 This Week
    Last Update:
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  • 23
    libimobiledevice

    libimobiledevice

    A cross-platform protocol library to communicate with iOS devices

    libimobiledevice is a cross-platform software library that talks the protocols to interact with iOS devices. Unlike other projects, it does not depend on using any existing proprietary libraries and does not require jailbreaking. Access filesystem of a device, access documents of file sharing apps, retrieve information about a device and modify various settings, backup and restore the device in a native way compatible with iTunes. Manage app icons arrangement on the device, install, remove,...
    Downloads: 56 This Week
    Last Update:
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  • 24
    Session Desktop

    Session Desktop

    A Decentralized, Onion Routed, Private Messenger

    Session Desktop is an open-source, privacy-focused messaging application that brings secure, decentralized communication to desktop environments such as Windows, macOS, and Linux, providing users with encrypted text, media, and group chats without requiring phone numbers or email addresses. Built on the Session protocol and the Loki network, it routes messages through a distributed onion-routing network that hides metadata like sender, timing, and location so that conversations are resistant to surveillance and correlation attacks. ...
    Downloads: 22 This Week
    Last Update:
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  • 25
    if-me.org

    if-me.org

    Free, open source mental health communication web app

    if-me.org is a community for mental health experiences that encourages people to share their personal stories with trusted allies. Trusted allies are the people we interact with on a daily basis, including friends, family members, co-workers, teachers, and mental health workers. Dealing with mental health is what makes us human. But for a lot of us, it's a struggle to be open about it. Not everyone is a counselor or therapist. The people who we interact with every day shape our emotions and...
    Downloads: 0 This Week
    Last Update:
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