Open Source Chat Software - Page 2
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Premier Construction SoftwareRated #1 Construction Accounting Software by Forbes Advisor in 2022 & 2023. Our modern SAAS solution is designed to meet the needs of General Contractors, Developers/Owners, Homebuilders & Specialty Contractors.
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Skillfully - The future of skills based hiringSkillfully transforms hiring through AI-powered skill simulations that show you how candidates actually perform before you hire them. Our platform helps companies cut through AI-generated resumes and rehearsed interviews by validating real capabilities in action. Through dynamic job specific simulations and skill-based assessments, companies like Bloomberg and McKinsey have cut screening time by 50% while dramatically improving hire quality.
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Session for Android
A Decentralized, Onion Routed, Private Messenger
Session Android is the official mobile client for Session, a privacy-first messaging protocol that enables secure, anonymous messaging without requiring phone numbers, email addresses, or centralized user accounts. Built natively for Android, the app lets users send and receive end-to-end encrypted text messages, voice notes, images, and attachments in both one-on-one and group chats, all while routing data through a decentralized onion-routing network designed to protect not just message content but also metadata like sender ID, timing, and network location. The Android client integrates seamlessly with Android’s notification system and background services so that you can stay connected without exposing your identity or compromising privacy, and it supports features such as message reactions, search within chats, profile and contact management, and local message storage encrypted at rest. -
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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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WhatSie
Feature rich WhatsApp Client for Desktop Linux
Feature-rich WhatsApp web client based on Qt WebEngine for Linux Desktop. -
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Ares Galaxy
A free peer-to-peer (P2P) BitTorrent file sharing client
Ares Galaxy is a free, open source BitTorrent and chat program that uses its own decentralized supernode/leaf network. Ares Galaxy has a simple, quick access interface with a built in audio/video viewer. Ares allows you to share any digital file including images, audio, video, software, documents, etc. You may now easily publish your files through the Ares’ peer-to-peer (P2P) network. As a member of the virtual community, you can search and download just about any file shared by other users. The latest versions also support the BitTorrent protocol and Shoutcast radio stations. -
Outbound sales softwareAdversus is an outbound dialing solution that helps you streamline your call strategies, automate manual processes, and provide valuable insights to improve your outbound workflows and efficiency.
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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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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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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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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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ApexDC++
The pinnacle of file-sharing and chat - an innovative DC client!
ApexDC™ is an innovative Direct Connect client based on the DC++ and StrongDC++ projects. Direct Connect provides a rare blend of seamless file sharing and community based chat and messaging between users. ApexDC features plugins and scripting through Lua and much more. Both operators and users alike should find it a pleasant experience. Note: as of May 28th 2016 ApexDC is now primarily distributed as two separate installers one targetting 32bit and the other 64bit operating systems. Additionally XP compatible binaries are now only offered as a separate download from the files section. -
The full-stack observability platform that protects your dataLayer, tags and conversion dataCode-Cube.io detects issues instantly, alerts you in real time and helps you resolve them fast. No manual QA. No unreliable data. Just data you can trust and act on.
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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. -
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Mumble
Mumble is an open-source, low-latency, high quality voice chat
Mumble is an open-source, low-latency, high-quality voice chat software. There are two modules in Mumble; the client (mumble) and the server (murmur). The client works on Windows, Linux, FreeBSD, OpenBSD, and macOS, while the server should work on anything Qt can be installed on. Low-latency and high-quality voice-chat program written on top of Qt and Opus. Administrators appreciate Mumble for being able to self-host and have control over data security and privacy. Some make use of the extensive permission system for complex scenarios (for example separating two groups but leaders being able to talk to both). Some love to provide their users with additional functionality with scripts making use of server APIs, or host music bots and the like that connect to the server. Those that have an existing user database often make use of authenticators to allow authenticating with existing account login data. -
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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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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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Signal iOS
A private messenger for iOS
Signal is a free, open source, messaging app for simple private communication with friends. Say "hello" to a different way of chatting: Signal is all about privacy, but with all the features you expect from a chat app. State-of-the-art end-to-end encryption (backed by Signal's open source protocol) keeps your chats safe. Neither we can read your messages or listen to your calls, nor anyone else. Privacy is not an optional mode, it is how Signal works. In all your messages, all your calls, forever. Send and receive messages, voice memos, photos, videos, GIFs and files for free. Signal uses your phone's data connection so no SMS or MMS charges are incurred. Make crystal clear calls 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 chats with encrypted trading cards. You can also create and share your own sticker packs. -
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A graphical notification plugin for the instant message client gaim. Now hosted at http://plugins.guifications.org/trac
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Undiscord
Delete all messages in a Discord server
Undiscord is a browser-based script and tool designed to mass-delete messages from Discord accounts, providing users with a way to clean up their message history in bulk. It operates by interacting with Discord’s web interface and APIs, automating the deletion process that would otherwise require manual removal of each message. The tool is typically executed through the browser console, making it accessible without requiring installation of standalone software. It allows users to filter messages based on criteria such as date, channel, or content, enabling more targeted cleanup operations. undiscord also includes rate limiting and delay mechanisms to reduce the risk of triggering platform restrictions during large deletion tasks. It is commonly used for privacy management, account cleanup, or removing outdated content. -
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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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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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This project allows connecting, file sharing and chatting in Direct Connect and ADC networks.
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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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Asterisk GUI client, VICIdial
VICIdial Contact Center Suite
This software suite is designed to extend the functionality of the Asterisk PBX through platform-independant web-client applications. Includes the VICIdial inbound/outbound contact center application. The suite is scalable across multiple Asterisk servers. -
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Messenger for Desktop 2
A simple & beautiful desktop client for Facebook Messenger
A simple & beautiful desktop client for Facebook Messenger. Chat without distractions on OS X, Windows, and Linux. Not affiliated with Facebook. This is not an official product. -
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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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YakYak
Desktop chat client for Google Hangouts
Yakyak is an open-source, unofficial Hangouts desktop client built in CoffeeScript and Electron/Node.js. It emulates an iOS device to connect to Google Hangouts APIs, enabling messaging, status indicators, and notifications on Windows, macOS, and Linux—eliminating the need for a Chrome-based Hangouts app. -
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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.
