Open Source Chat Software - Page 3
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Pandion
An instant messaging client for XMPP networks
Pandion is an open source instant messaging client for XMPP networks. Keep in touch with friends or collaborate with colleagues using Pandion instant messenger. Pandion is designed for ease of use and secure communication. -
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DiscordGo
(Golang) Go bindings for Discord
DiscordGo is a Go package that provides low level bindings to the Discord chat client API. DiscordGo has nearly complete support for all of the Discord API endpoints, websocket interface, and voice interface. If you would like to help the DiscordGo package please use this link to add the official DiscordGo test bot dgo to your server. This provides indispensable help to this project. Construct a new Discord client which can be used to access the variety of Discord API functions and to set callback functions for Discord events. The DiscordGo code is fairly well documented at this point and is currently the only documentation available. Go reference (below) presents that information in a nice format. This library and the Discord API are unfinished. Because of that there may be major changes to library in the future. -
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EOL Rambox CE
Free and Open Source messaging and emailing app
Free, Open Source and cross-platform messaging and emailing app that combines common web applications into one. -
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Signal
A private messenger for Android
Signal-Android is the official open-source Android client for Signal, a secure messaging app focused on end-to-end encryption and privacy. Developed by the Signal Foundation, it enables private messaging, voice, and video calls, without storing user data. Signal uses the Signal Protocol for encryption and does not collect metadata, making it one of the most privacy-focused communication platforms available. -
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Webogram
Telegram web application, GPL v3
Telegram offers great apps for mobile communication. It is based on the MTProto protocol and has an Open API. I personally like Telegram for its speed and cloud-support (that makes a web app possible, unlike in the case of WA and others). MTProto data can be carried over HTTP (SSL is also supported), so this project is my take at creating one. Hosted version: the app is downloaded via HTTPS as a usual website. Will be available offline due to application cache. Packed version, the app is downloaded at once in a package via HTTPS. The package is updated less frequently than the Web-version. The app is based on the AngularJS JavaScript framework, and written in pure JavaScript. jQuery is used for DOM manipulations, and Bootstrap as the CSS-framework. The project repository is based on angularjs-seed and includes gulp tasks, so it's easy to launch the app locally on your desktop. -
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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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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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Minicord
A minimalist Discord Client
A minimalist version of Discord based on the web version. -
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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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WeChatTweak-macOS
A dynamic library tweak for WeChat macOS
WeChat macOS client enhances the Tweak dynamic library. Prevent message withdrawal, message list notification, system notification. Withdraw your messages normally. Unlimited opening of clients. Right-click the Dock icon to log in to the new WeChat account. Command line execution:open -n /Applications/WeChat.app. Message processing enhancement, supports any emoji export, supports QR code recognition. Supports right click to copy link directly. Open directly by the system default browser. No phone authentication required to reopen the app. UI interface settings panel, support for Alfred workflow, and support for Launchbar action. In order to reduce maintenance costs and ensure update speed, only the latest App Store version of the client is supported by default. -
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Vencord
Download Vencord for Desktop or your favourite Browser.
Vencord is a modification for discord.com that adds plugins and custom styles, blocks Discord's tracking and more! -
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Discord-Sandbox
Alternative electron-based Discord client with custom telemetry
Are you worried Discord is watching what programs you have open or listening to your mic even while you're not pressing your push-to-talk key? Discord-Sandbox isolates the Discord client from reading background processes by running the Discord web client inside of a webview, which is finally contained inside the Electron process. While I cannot guarantee this client protects you from anything, I have tried my best to remove Discord's data collection. As detailed from Luna Mendes' discord-unofficial-docs, Discord sends telemetry data over the /api/science endpoint. This project does its best to disable this telemetry communication by running javascript code into the webview that adds a blacklist/whitelist to the default XMLHttpRequest behavior. In this way, we explicitly block all communication with the science address, while simultaneously whitelisting addresses needed for minimum Discord functionality. See the full code in mainRender.js. -
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Facebook SDK for Android
Used to integrate Android apps with Facebook Platform
This open-source library allows you to integrate Facebook into your Android app. Integrate your Android app with Facebook to build engaging social apps by using the Facebook SDK for Android. To learn more about using Facebook development tools. The current version of the Facebook SDK for Android is version 11.2.0 and requires the Android API 15. Code and samples for the Facebook SDK for Android are available on GitHub. A secure and convenient way for people to log into your app or website by using their Facebook credentials. Enable people to post to Facebook from your app. People can share, send a message, and share to stories. Understand people's actions in your app and measure the effectiveness of your Mobile App Ads. Get data in and out of Facebook's social graph, query data, post stories, upload photos and perform other tasks. -
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Halloy - IRC Client
IRC application written in Rust
Halloy is an open-source IRC client written in Rust, utilizing the Iced GUI library. It aims to provide a simple and fast client for Mac, Windows, and Linux platforms -
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Miranda NG
Miranda NG: Next Generation of Miranda IM
Miranda NG is a successor of a popular multi-protocol instant messaging client for Windows, Miranda IM. Very light on system resources and extremely fast. Supports Em-LAN Facebook, Gadu-Gadu, ICQ / MRA, IRC Internet Relay Chat, Jabber XMPP, MinecraftDynmap, Omegle, Sametime, SkypeWeb, Steam, Tox, Twitter, and VKontakte. Linux is not a natively supported operating system, but Miranda is known to run on Linux under Wine. PluginUpdater is responsible for keeping your Miranda up-to-date. It checks for updates for all installed plugins and other components like icon sets and langpack regularly (depending on its settings) and performs updating automatically. -
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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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Protocol plugin for Office 365/Lync/OCS
for Adium, Pidgin, Miranda and Telepathy IM Framework
Please make sure to read this page: http://sourceforge.net/p/sipe/wiki/Frequently%20Asked%20Questions/ A third-party Pidgin/Adium/Miranda/Telepathy plugin for the extended version of SIP/SIMPLE used by various products: * Skype for Business * Microsoft Office 365 * Microsoft Business Productivity Online Suite (BPOS) * Microsoft Lync Server * Microsoft Office Communications Server (OCS 2007/2007 R2) * Microsoft Live Communications Server (LCS 2003/2005) -
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AI Chatbot Framework
Python chatbot framework with Natural Language Understanding
Building a chatbot can sound daunting, but it’s totally doable. AI Chatbot Framework is an AI powered conversational dialog interface built in Python. With this tool, it’s easy to create Natural Language conversational scenarios with no coding efforts whatsoever. The smooth UI makes it effortless to create and train conversations to the bot and it continuously gets smarter as it learns from conversations it has with people. AI Chatbot Framework can live on any channel of your choice (such as Messenger, Slack etc.) by integrating it’s API with that platform. You don’t need to be an expert at artificial intelligence to create an awesome chatbot that has AI capabilities. With this boilerplate project you can create an AI-powered chatting machine in no time. -
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CSS-Only Chat
A truly monstrous async web chat using no JS whatsoever
css-only-chat is a proof-of-concept demonstration that implements a functioning chat interface using only HTML and CSS, without any JavaScript or backend logic. The project showcases creative use of CSS selectors, checkboxes, labels, and the :checked pseudo-class to mimic interactive behaviors normally handled by JavaScript. Messages are pre-written in the HTML and displayed based on user interaction, making it more of a playful experiment than a real messaging platform. Its main purpose is to illustrate the limits of CSS as a programming and UI tool, serving as both an educational example and a bit of humor within the developer community. By pushing CSS beyond its conventional role, it demonstrates how user interfaces can be simulated through styling tricks and static structures. Although not suitable for production use, it stands as a fun exercise in front-end creativity and unconventional coding challenges. -
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Discord Shell
A shell for Discord
A Discord client, usable completely from its Terminal, in the form of a shell (to enter commands). -
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Nextcloud Talk
Video- & audio-conferencing app for Nextcloud
Nextcloud Talk is the official chat, video and audio conferencing app for Nextcloud that allows users to chat, call and screenshare with multiple other users. Nextcloud offers better protection for your communication as it provides end-to-end encryption and keeps even metadata from leaking. You can have private, group, public or password protected calls by simply inviting one person, a whole group, or sending a public link as an invitation to a call. It is also conveniently integrated with other Nextcloud apps like Files and Contacts, so you can share and edit documents, link with calendars, tasks and other resources while in a chat room. -
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Zulip
Powerful open source team chat application
Zulip is a powerful open source group chat application that combines the immediacy of real-time chat with the productivity benefits of a threaded conversation model. Zulip’s unique threading model allows users to easily catch up on important conversations, helping to save time and increase productivity. -
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cabal-cli
Terminal client for Cabal, the p2p chat platform
cabal-cli is a terminal-based client for Cabal, a peer-to-peer chat platform that operates without centralized servers. It allows users to create and join decentralized chat channels, ensuring privacy and resilience against censorship. The CLI interface provides a lightweight and efficient means of communication, particularly suited for developers and tech-savvy users. -
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gtkcord4
GTK4 Discord client in Go, attempt #4
GTK4 Discord client in Go, attempt #4. gtkcord4 needs GTK4, object-introspection, and optionally libcanberra. If compiling, then the library headers are also required. gtkcord4's CI automatically builds each release for Linux x86_64 and aarch64. See the Releases page for the binaries. -
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libsignal
Home to the Signal Protocol and other cryptographic primitives
libsignal is the foundational cryptographic library that implements the Signal Protocol and other essential primitives used across the official Signal clients and servers, enabling secure end-to-end encrypted communication. Written primarily in Rust with bindings and APIs surfaced for Java, Swift, and TypeScript, this library encapsulates critical algorithms like the Double Ratchet, prekey mechanisms, secure key storage, and zero-knowledge group primitives, along with additional utilities for media handling and device key transfer. libsignal abstracts complex cryptographic constructions into reusable components that client applications can adopt to ensure forward secrecy, authentication, and integrity without re-implementing core security logic. Although its primary use is within the Signal ecosystem, its documentation and exposed interfaces allow developers to explore modern secure messaging primitives or use pieces of the protocol in experimental applications.
