Open Source Messaging Platforms - Page 2
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MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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Ship Agents FasterGemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
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Franz 5
Franz is a free messaging app for services like WhatsApp, Slack, etc,
Franz is your messaging app for WhatsApp, Facebook Messenger, Slack, Telegram and many many more. Franz supports a great variety of business and private messaging & chat services like Slack, WhatsApp, WeChat, Messenger, Telegram, Google Hangouts, Skype, Zendesk and many more. It does not matter if you just want to keep in touch with your friends or are managing a multi-seat customer care team. Franz got you covered. Franz allows you to add each service many times. This makes Franz the perfect tool to manage multiple business and private accounts all at the same time. You could even use five different Facebook Messenger accounts at once, if some inexplicable reason urges you to do so. Franz Workspaces help you create distraction-free work environments by making sure you’re only getting the notifications you absolutely need while working on a specific project. Setting up different Workspaces for business and private life is also an easy way to disconnect from work at home. -
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aMSN
MSN compatible messenger application
A very nice MSN compatible messenger application, aMSN Messenger is a multiplatform MSN messenger clone. Works pretty much like its Windows based counterpart. Perfect for keeping in touch with those friends who have not yet seen the light. Works on linux -
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Element X Android
Android Matrix messenger application using the Matrix Rust SDK
Element X Android is a modern, reimagined Matrix-protocol client designed for Android that provides secure, decentralized communication with a focus on performance, polished UI, and extensibility. Built as the successor to earlier Matrix clients, Element X blends fast native Android development with a feature-rich experience that supports end-to-end encrypted messaging, voice and video calls, threaded conversations, and file sharing across federated Matrix servers. Unlike proprietary messaging apps, Element X connects to any compliant Matrix server, letting individuals host their own or join communities without centralized control, while still benefiting from robust cryptographic protections that ensure only intended recipients can read conversations. The app’s UI emphasizes responsiveness and ease of use with modern navigation patterns, customizable themes, and intuitive controls for group chats and spaces (Matrix’s equivalent of servers or room collections). -
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Telegram for Android
Telegram messenger for Android
Telegram is a wonderful and private messaging app that offers simple, fast, secure and synced messaging for all your devices. It delivers messages faster than any other application; cloud-based so you can access your messages from any device; and very secure, with messages heavily encrypted and could even self-destruct. Telegram is simple and fun to use, with powerful photo and video editing tools as well as an open sticker/GIF platform to let you express yourself fully. It’s also incredibly powerful. Whether you’re setting up a group chat for up to 200,000 members or sharing large videos or documents, Telegram is up to the task. Best of all it’s completely free and open source, with no ads or subscription fees. -
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whatsapp-web.js
WhatsApp library for NodeJS that connects through the browser app
A WhatsApp client library for NodeJS that connects through the WhatsApp Web browser app. Programmatically control WhatsApp whether you're running user or business accounts. It uses Puppeteer to run a real instance of Whatsapp Web to avoid getting blocked. Programmatically control WhatsApp whether you're running user or business accounts. Whatsapp-web.js connects to an official version of WhatsApp Web under the hood, reducing ban risks. The object-oriented approach makes it easy to get running quickly. Since whatsapp-web.js works by running WhatsApp Web in the background and automating its interaction, you'll need to authorize the client by scanning a QR code from WhatsApp on your phone. After scanning this QR code, the client should be authorized and you should see a Client is ready! message being printed out. -
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"Mibew Messenger" - is unique software allowing visitors of your site to chat with your operators. This repo should be treated as an obsolete. For modern version of Mibew Messenger see https://sourceforge.net/projects/mibew/
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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. Fluxer supports typical messaging workflows while also aiming to provide extensibility for plugins and future integrations. Because it is open source, users can inspect, modify, and host their own instance, aligning with privacy-focused and decentralized communication trends. -
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QKSMS
A beautiful SMS messenger for Android
Fall in love with texting all over again with QKSMS! QKSMS is a beautiful, simple and customizable open source replacement to the stock messaging app on Android. It's got a clean, clutter-free intuitive design that lets you focus on what matters, plus millions of colors to choose from to make the theme of the entire app truly your own. QKSMS has some powerful features, including photo sharing, group chat, conversation blocking, message backup and restore and more. It's got everything you need from a text messaging app, plus all the fun features that make for a great text messaging experience. Simply put, QKSMS makes texting magical again, just the way it should be! -
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Dino
Modern XMPP ("Jabber") Chat Client using GTK/Vala
Dino is a modern, secure, and user-friendly XMPP (Jabber) chat client designed for desktop systems. It aims to provide a polished experience for private and group messaging, with a focus on privacy, end-to-end encryption, and federated communication. Unlike centralized chat platforms, Dino supports standard XMPP servers and integrates features like OMEMO encryption, media sharing, and modern chat UX patterns. It’s written in GTK and optimized for Linux environments, making it a solid choice for privacy-conscious users and open communication advocates. -
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Rasa
Open source machine learning framework to automate text conversations
Rasa is an open source machine learning framework to automate text-and voice-based conversations. With Rasa, you can build contextual assistants on Facebook Messenger, Slack, Google Hangouts, Webex Teams, Microsoft Bot Framework, Rocket.Chat, Mattermost, Telegram, and Twilio or on your own custom conversational channels. Rasa helps you build contextual assistants capable of having layered conversations with lots of back-and-forths. In order for a human to have a meaningful exchange with a contextual assistant, the assistant needs to be able to use context to build on things that were previously discussed. Rasa enables you to build assistants that can do this in a scalable way. Rasa uses Poetry for packaging and dependency management. If you want to build it from the source, you have to install Poetry first. By default, Poetry will try to use the currently activated Python version to create the virtual environment for the current project automatically. -
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RevokeMsgPatcher
A hex editor for WeChat/QQ/TIM
RevokeMsgPatcher is a reverse engineering patch tool for Chinese messaging apps QQ and TIM. It prevents message recall (revocation) by modifying the app’s behavior to retain recalled messages, allowing users to see messages that would otherwise be deleted. Primarily used in Windows environments, the tool is popular among users who prefer transparency in their chats. -
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HERMES Mail
The cult-favourite eMail client formerly known as Qualcomm Eudora
eMail traffic is on the rise. With over 100 man-years of development time behind it and a clean, intuitive interface that makes handling messages a breeze, Hermes Messenger (formerly known as QUALCOMM Eudora) is more than a way to send and receive mail: it's a powerful management tool with features to increase your productivity and enhance your communications. It is the best eMail program for people who get lots of it. If you're not yet one of them, you soon will be. Take control of your eMail before it takes control of you! Hermes provides industrial-strength communication, free of ads and free of cost. -
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Mibew Messenger is an open-source live support application allowing visitors of your site to chat with your operators.
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Session for iOS
A Decentralized, Onion Routed, Private Messenger
Session iOS is the native iPhone and iPad client for the Session secure messaging ecosystem, engineered to bring private, anonymous communication to Apple’s mobile platforms without relying on phone numbers or email addresses. The app supports encrypted one-on-one and group chats, voice messages, file and image sharing, and threaded conversations, all delivered over a decentralized onion network designed to conceal metadata such as sender identity, message timing, and network path. On iOS, Session integrates with Apple’s notification and background execution frameworks so that messages arrive reliably while preserving privacy protections, and it supports Face ID/Touch ID unlock to guard access to local message storage. Its interface follows iOS conventions for navigation, attachments, and user interaction, making secure messaging feel natural to Apple users while maintaining rigorous cryptographic standards. -
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text_blind_watermark
To hide information into text, put invisible blind watermark
Text Blind Watermark is a Python package for hiding an invisible message inside ordinary plain text. It modifies the underlying character sequence without creating an obvious visual difference for readers. A password controls how the watermark is embedded and later extracted. The API can process text loaded from files and return a protected version for saving or sharing. The project has been tested across macOS, Windows, Linux, browsers, and several messaging or publishing platforms. An online demonstration and a Rust-related implementation provide additional ways to explore the technique. It is useful for ownership marking, leak tracing, and experiments with text steganography. -
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Accessible-Coconut
A GNU/Linux operating system accessible for visually impaired.
Accessible-Coconut(AC) is a community driven GNU/Linux operating system which is completely accessible for persons with visual impairment. AC is derived from Ubuntu-MATE. Yes the goal is to make a free and open-source eyes free desktop environment. Forum : https://groups.google.com/forum/#!forum/accessible-coconut Telegram forum : https://telegram.me/accessible_coconut Project home : https://zendalona.com/ -
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Kadu is a dynamically evolving instant messenger compatible with the Gadu-Gadu and XMPP protocol. It can be run on all platforms supporting the Qt toolkit.
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Discord Ollama Integration
Discord Bot that utilizes Ollama to interact with any LLMs
Discord Ollama Integration is a TypeScript-based Discord bot that integrates directly with the Ollama runtime to provide conversational AI capabilities inside Discord servers. The project is designed to turn any Discord channel into an interactive AI assistant powered by locally hosted large language models, allowing users to chat, manage models, and control AI behavior through slash commands. It includes extensive command support for tasks such as summarization, model switching, listing available models, and pulling new models from the Ollama library. The system is built with multi-user support in mind, enabling simultaneous conversations while maintaining contextual awareness at the channel and user level. It also handles long outputs by splitting responses beyond Discord’s message limits, ensuring smooth interaction even with large generated responses. The project supports Docker-based deployment, making it easy to run both the bot and Ollama server in a containerized environment. -
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Element Android
A glossy Matrix collaboration client for Android
Element Android is a glossy Matrix collaboration client for Android, based on a new Android SDK fully written in Kotlin. A total rewrite of Riot-Android, Element is an all-in-one secure chat app made possible through the open global Matrix network. It is a messenger that allows users to talk to anyone regardless of their app, while providing unparalleled privacy and security. It protects conversations from data-mining and ads with proper end-to-end encryption, so you can feel totally secure. Element is used by millions all over the world for their business, organizations, and even for personal and home use. It is part of the Matrix ecosystem, which is an open network for secure, decentralised communication governed by The Matrix.org Foundation. -
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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. It has been developed and refined over many years, making it a mature option for teams building custom messaging systems. MobileIMSDK focuses on the communication layer rather than a complete consumer chat app, so developers can build their own user interface and business logic on top of it. It is useful for mobile apps, web apps, enterprise messaging, live communication features, and custom push systems. -
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Signal Server
Server supporting the Signal Private Messenger applications on Android
Signal Server is the official backend server component that supports the Signal Private Messenger ecosystem on Android, iOS, and desktop platforms, serving as the trusted message relay, contact discovery, and push notification hub while the clients handle end-to-end encryption. Built in Java and licensed under the AGPL-3.0 license, this server software handles protocols for delivering encrypted messages, synchronizing user metadata like public keys and push tokens, and providing REST and service APIs for the client apps to interact with. Although cryptographic operations and message confidentiality are managed by the client side using the Signal Protocol, the server ensures message routing, user registration, and group updates without having access to the decrypted contents. Its codebase is public to ensure transparency and auditability for a security-focused community willing to inspect how message metadata and delivery mechanisms are implemented. -
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WeChatExtension-ForMac
A plugin for Mac WeChat
WeChatExtension-ForMac is an unofficial plugin that enhances the WeChat desktop experience on macOS by adding new features such as message anti-recall, multi-instance login, auto-reply, and UI customization. Designed for users who want more control and functionality from their desktop WeChat client, this plugin requires patching the app and may violate WeChat’s terms of service. -
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Dolphin Pro - Social Network Platform
Open-source social network CMS and mobile apps.
Dolphin Pro is a full-featured integrated Social CMS. Dolphin includes media server, video converter, media sharing modules, social profiles, chat, messenger, timeline, events, groups, store, blogs, forums and more. -
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Licq is an ICQ/AIM clone written fully in C++. It uses an extensive plugin system to manage many different functions including the MSN protocol. The main GUI is written using the Qt widget set.
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Easy SMS
A multi-channel SMS sending wheel
Easy SMS is a PHP package for sending SMS messages through multiple service providers using one consistent interface. It helps developers avoid writing separate integrations for every SMS gateway their application may need. The package uses configurable gateways, strategies, messages, and phone number handling to make SMS delivery easier to manage. It is especially useful in applications that need verification codes, alerts, notifications, transactional messages, or fallback delivery across providers. The project is installed through Composer and is part of Overtrue’s broader PHP ecosystem. It is aimed at developers who want a practical abstraction layer for multi-channel SMS delivery in PHP applications.