Open Source Mac Messaging Platforms
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Messaging Platforms for Mac
View 64 business solutionsBrowse free open source Messaging platforms and projects for Mac below. Use the toggles on the left to filter open source Messaging platforms by OS, license, language, programming language, and project status.
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Pidgin IM
A universal instant messaging (IM) program
See https://pidgin.im/about/ for more information. Pidgin is an instant messaging program which lets you log in to accounts on multiple chat networks simultaneously. It runs on Windows, Linux, and other UNIX operating systems. Pidgin is compatible with the following chat networks out of the box: AIM, ICQ, Google Talk, Jabber/XMPP, MSN Messenger, Yahoo!, Bonjour, Gadu-Gadu, IRC, MXit, Novell GroupWise Messenger, Lotus Sametime, SILC, SIMPLE, MySpaceIM, and Zephyr. It is written in C and makes heavy use of GLib and GTK+. Finch is a command line instant messaging program. It also lets you log in to accounts on multiple chat network simultaneously, and it is compatible with the same chat networks as Pidgin. It is written in C and makes heavy use of GLib and ncurses. -
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Telegram Desktop
Telegram Desktop messaging app
Telegram Desktop is the official C++/Qt-based cross-platform client for Telegram, implementing the full Telegram API and MTProto protocol for secure messaging, voice/video calls, file sharing, and chat features. It provides message sync across devices, supports themes, stickers, bots, and is actively maintained. -
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BeeBEEP (Free Office Messenger)
You can message and share files inside your intranet without a server.
BeeBEEP is a free, open-source, peer-to-peer (P2P) desktop LAN chat and office messenger built with end-to-end encryption (Rijndael Algorithm, AES). Designed for local area networks, this free cross-platform messaging app enables instant messaging, group chat, and secure file sharing across your office, home, or intranet—completely serverless and offline. Whether you need a private LAN chat application for your team or a secure office communicator over VPN, BeeBEEP operates without central servers or cloud dependencies. It is a free, serverless chat solution for Windows, Linux, and macOS where privacy, data security, and local network communication are essential. -
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gSOAP Toolkit
Development toolkit for Web Services and XML data bindings for C & C++
The gSOAP toolkit is an extensive suite of portable C and C++ software to develop XML Web services with powerful type-safe XML data bindings. Easy-to-use code-generator tools allow you to directly integrate XML data in C and C++. Serializes native application data in XML. Includes WSDL/XSD schema binding and auto-coding tools, stub/skeleton compiler, Web server integration with Apache module and IIS extension, high-performance XML processing with schema validation, fast MIME/MTOM streaming, SOAP and REST Web API development, WS-* protocols (WS-Security, WS-Policy, WS-ReliableMessaging, etc), XML-RPC and JSON. Licensed under GPLv2. Visit the developer center with guides, tutorials, and examples at www.genivia.com/dev.html The documentation of the toolkit, libraries, plugins and more is available at www.genivia.com/docs.html Commercial-use licenses and expert technical support services are available at competitive pricing levels, please visit www.genivia.com/products.html -
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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 personal style. It also includes convenience features such as built-in translation, enhanced media previews, and streamer-friendly options. Available across Windows, macOS, and Linux, AyuGram Desktop is ideal for power users who want a more flexible Telegram experience. -
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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. The desktop client pairs seamlessly with Session mobile apps but can also be used independently to communicate with Session contacts in a familiar desktop interface that supports a full keyboard, global notifications, drag-and-drop media sharing, and local file access. Session emphasizes zero-knowledge privacy, meaning that only the participants in a conversation can read the messages. -
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DiscordChatExporter
Saves Discord chat logs to a file
DiscordChatExporter is a cross-platform utility that allows users to export Discord chat histories into structured files for archival, analysis, or backup purposes. The tool connects to Discord accounts and retrieves message history from servers, channels, or direct messages, then converts the data into formats such as HTML or JSON. It is designed to preserve message structure, timestamps, attachments, and formatting so exported conversations remain easy to navigate and review. The project is widely used for moderation audits, research, community archiving, and personal record keeping. With both command-line and GUI usage patterns available through the ecosystem, it supports automation as well as manual workflows. Overall, DiscordChatExporter provides a reliable way to extract and preserve Discord communications outside the platform. -
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wautochat-releases
WAutoChat release artifacts
WAutoChat is a WhatsApp automation and customer communication platform designed for businesses, marketers, and support teams. It centralizes multiple WhatsApp accounts in a single interface for managing conversations and messaging operations. A visual flow builder allows users to create chatbots, automated replies, lead funnels, and customer support workflows. AI integrations support GPT, Claude, Gemini, and compatible APIs for generating responses and classifying messages. Broadcast tools send personalized campaigns to contact groups with configurable delays and delivery tracking. Built-in contact management provides labels, conversation histories, and customer organization features. The application supports native desktop installation on Windows, macOS, and Linux. A self-hosted Docker edition allows organizations to manage the platform on their own infrastructure. -
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Signal Desktop
Private messenger for Windows, Mac, and Linux
Say "hello" to a different messaging experience. An unexpected focus on privacy, combined with all of the features you expect. State-of-the-art end-to-end encryption (powered by the open source Signal Protocol) keeps your conversations secure. We can't read your messages or listen to your calls, and no one else can either. Privacy isn’t an optional mode, it’s just the way that Signal works. Every message, every call, every time. Share text, voice messages, photos, videos, GIFs and files for free. Signal uses your phone's data connection so you can avoid SMS and MMS fees. Make crystal-clear voice and video calls to people who live across town, or across the ocean, with no long-distance charges. Add a new layer of expression to your conversations with encrypted stickers. You can also create and share your own sticker packs. Group chats make it easy to stay connected to your family, friends, and coworkers. -
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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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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 low-resource or remote systems. -
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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 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. -
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Sideband
LXMF client for Android, Linux and macOS to communicate with people
Sideband is a privacy-focused, peer-to-peer mesh messaging protocol and platform that allows users to communicate directly over local networks or the internet without servers. It emphasizes metadata resistance and secure message delivery, working effectively in offline, low-bandwidth, or disaster recovery scenarios. Built-in Rust, Sideband supports encrypted group messaging, file transfers, and network self-discovery. It is ideal for use in community networks, crisis response, and decentralized communications infrastructure. -
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ElasticMQ
In-memory message queue with an Amazon SQS-compatible interface
ElasticMQ is a lightweight, fully asynchronous, in-memory message queue implementation written in Scala / Akka. It provides a feature-compatible Amazon SQS REST API interface for testing, local development, or embedded usage. It can persist queues or run purely in-memory and also supports Docker deployment and a web UI. -
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Ferdium
All your services in one place, built by the community
Ferdium is a free, open-source desktop application that combines messaging platforms, productivity tools, and web services into a single interface. Based on Franz, it allows users to access multiple online accounts without constantly switching between browser tabs or standalone applications. The software supports a wide collection of services, including communication platforms, email clients, and collaboration tools. Users can organize their services into separate workspaces for improved productivity and easier navigation. Ferdium also includes a built-in to-do list and customizable interface styling through CSS. It supports account synchronization while allowing configurations that do not require a hosted account. Available for Windows, macOS, and Linux, Ferdium provides a flexible environment for managing everyday digital workflows. -
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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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64Gram
64Gram (unofficial Telegram Desktop)
64Gram is a free, open-source, unofficial Telegram desktop client based on the Telegram Desktop application. It provides familiar Telegram messaging functionality while introducing additional customization and management features. Users can communicate through private conversations, groups, channels, and voice chats. The software supports managing up to ten Telegram accounts within one installation. Enhanced messaging tools include quick forwarding, message ID display, and searching messages from specific users. Group administrators can access additional moderation controls, chat information, and permission settings. Privacy options allow users to hide certain interface elements and control phone number visibility. Available for Windows, macOS, and Linux, 64Gram expands Telegram Desktop with practical interface enhancements. -
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Tox
A New Kind of Instant Messaging
Tox is a peer to peer (serverless) instant messenger that focuses on security and privacy. In today's world where digital surveillance is rampant, Tox offers users a communication software alternative that's free from prying eyes and ears, and is, quite literally free and without advertising. Tox comes with all the great features you'd expect from an instant messenger application, including voice calls, video calls, file sharing and screen sharing. Everything done on Tox is encrypted using open-source libraries so you can be assured of completely private conversations. It also has no central servers that can be raided, shut down, or forced to turn over data. There are no corporate interests, no hidden agendas-- just simple, secure and easy to use messaging. -
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Meshtastic
Android application for Meshtastic
Meshtastic Android is a free, open-source application that enables communication through decentralized LoRa mesh radio networks. It connects Android devices to compatible Meshtastic radio hardware, allowing users to exchange messages without relying on cellular networks or internet connectivity. The application supports encrypted text messaging, communication channels, and direct conversations between network participants. Users can view connected devices, monitor signal information, and manage radio configurations. It also provides location sharing and map-based visualization when positioning data is available. Messages can travel between compatible radio nodes through mesh networking, extending communication beyond direct device connections. Meshtastic Android is particularly useful for outdoor enthusiasts, emergency preparedness, remote communities, and off-grid communication. -
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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 -
21
Colanode
Open-source and local-first Slack and Notion alternative
Colanode is a free, open-source, local-first collaboration platform that combines team messaging, document editing, databases, and file management. Designed as an alternative to Slack and Notion, it provides self-hosted workspaces for individuals and organizations. Users can exchange messages, create rich-text pages, and organize projects through customizable databases. Database views include tables, Kanban boards, and calendars for managing structured information. Its synchronization system stores changes locally before transmitting them to a server, allowing continued work during network interruptions. Colanode uses Yjs-based conflict-free replicated data types to support simultaneous document editing. Available through desktop and web clients, it emphasizes data ownership, offline accessibility, and collaborative productivity. -
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PB for Desktop
The missing Desktop application for Pushbullet
PB for Desktop is a free, open-source desktop companion application designed for receiving and managing Pushbullet notifications. It brings Pushbullet functionality to Windows, macOS, and Linux through a lightweight interface. Users can receive native desktop notifications from connected devices and online services. The application supports Android notification mirroring and sending or receiving SMS messages through compatible phones. Notification thumbnails display website icons or image previews for easier identification. Users can customize alert sounds and filter unwanted notifications using regular expressions. The software runs in the system tray or menu bar without requiring a constantly open window. It also registers the computer as a Pushbullet device for receiving content sent from other connected devices. -
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ZapFast
ZapFast: a fast, native WhatsApp client in Rust and egui
ZapFast is a free, open-source WhatsApp desktop client developed with Rust and egui. It provides a native messaging experience without relying on an embedded browser engine. Users can link their WhatsApp accounts through QR code scanning or phone number pairing. The application supports text messages, attachments, voice messages, stickers, reactions, polls, and message forwarding. Multiple WhatsApp accounts can be accessed within the same window. Conversations are stored in an encrypted local archive, with older messages retrieved as users scroll. Additional features include chat history exporting, keyboard shortcuts, desktop notifications, and customizable themes. Available for Windows, macOS, and Linux, ZapFast emphasizes fast startup, efficient resource usage, and local data privacy. -
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pulse-sms-desktop
The official MacOS, Windows, and Linux clients for Pulse SMS
Pulse SMS Desktop is the official desktop client for Pulse SMS, a messaging application that synchronizes Android text messages across devices. It allows users to send and receive SMS and MMS messages directly from their computers. Conversations synchronize through an encrypted cloud service rather than requiring a continuous connection to the phone. The application supports searching conversations, managing scheduled messages, and organizing personal communications. Desktop notifications alert users to incoming messages without keeping a browser tab open. Additional settings include private conversations, notification snoozing, and customizable messaging preferences. Built with Electron, the client supports Windows, macOS, and Linux. Its GitHub repository distributes application releases, while the source code is maintained separately. -
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Caprine
Elegant Facebook Messenger desktop app
Caprine is an unofficial and privacy-focused Facebook Messenger app with many useful features. Caprine is feature complete. However, we welcome contributions for improvements and bug fixes. Dark theme, Vibrant theme, privacy-focused, keyboard shortcuts, menu bar mode, work chat support, code blocks, touch bar support, and custom styles. macOS 10.10+, Linux, and Windows 7+ are supported (64-bit only). For taskbar notification badges to work on Windows 10, you'll need to enable them in Taskbar Settings. Convert your messenger to a dark theme. Ability to toggle last seen/typing indicators. Interface adapts to smaller sizes. In-house notifications to keep you up to date. Caprine is a third-party app and is not affiliated with Facebook. You can toggle dark mode in the View menu or with Command d / Control d.
