Browse free open source Chat software and projects below. Use the toggles on the left to filter open source Chat software by OS, license, language, programming language, and project status.

  • Contractor Foreman is the most affordable all-in-one construction management software for contractors and is trusted by contractors in more than 75 countries. Icon
    Starting at $49/m for the WHOLE company, Contractor Foreman is the most affordable all-in-one construction management system for contractors. Our customers in 75+ countries and industry awards back it up. And it's all backed by a 100 day guarantee.
  • AestheticsPro Medical Spa Software Icon
    AestheticsPro Medical Spa Software

    Our new software release will dramatically improve your medspa business performance while enhancing the customer experience

    AestheticsPro is the most complete Aesthetics Software on the market today. HIPAA Cloud Compliant with electronic charting, integrated POS, targeted marketing and results driven reporting; AestheticsPro delivers the tools you need to manage your medical spa business. It is our mission To Provide an All-in-One Cutting Edge Software to the Aesthetics Industry.
  • 1
    CalLite CRM

    CalLite CRM

    Software per Call Center

    CalLite è il software per Call Center più versatile e veloce sul mercato. Ti permette di azzerare le perdite di tempo degli utenti (operatori, agenti, supervisori, coordinatori, ecc. ecc.) per massimizzare i guadagni. Il software dispone delle funzionalità: PowerDialer, ProgressiveDialer, PredictiveDialer ed AutoDialer. Ovunque siano (da casa o in ufficio), i tuoi operatori potranno lavorare con una semplice connessione internet. Tu potrai, da ogni dispositivo fisso o mobile, amministrare e controllare l’attività del tuo Call Center.
    Downloads: 0 This Week
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    ArmCord

    ArmCord

    ArmCord is a custom client designed to enhance your Discord experience

    ArmCord is a custom client designed to enhance your Discord experience while keeping everything lightweight. - Standalone client ArmCord is built as a standalone client and doesn't rely on the original Discord client in anyway. - Various mods built in Enjoy Vencord, Shelter and their many features, or have a more vanilla experience, it's your choice! - Made for Privacy™ ArmCord automatically blocks all of Discord's trackers; even without any client mods you can feel safe and secure! - Supports Rich Presence Unlike other clients ArmCord supports rich presence (game activity) out of the box thanks to arRPC. - Mobile support ArmCord has a **experimental** mobile support for phones running Linux such as the PinePhone. While this is still far from ideal solution, we're slowly trying to improve it. - Much more stable ArmCord is using a newer build of Electron than the stock Discord app. This means you can have a much more stable and secure experience.
    Downloads: 64 This Week
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  • 3
    Signal Desktop

    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.
    Downloads: 12 This Week
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  • 4
    whatsapp-web.js

    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.
    Downloads: 11 This Week
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  • A privacy-first API that predicts global consumer preferences Icon
    A privacy-first API that predicts global consumer preferences

    Qloo AI adds value to a wide range of Fortune 500 companies in the media, technology, CPG, hospitality, and automotive sectors.

    Through our API, we provide contextualized personalization and insights based on a deep understanding of consumer behavior and more than 575 million people, places, and things.
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    GoofCord

    GoofCord

    Take control of your Discord experience with GoofCord

    Take control of your Discord experience with GoofCord, the highly configurable and privacy-focused Discord client. Privacy first: GoofCord blocks all tracking and uses multiple techniques to improve your privacy and security. Tailor your client to your liking with GoofCord's plethora of configuration options. Enjoy a smooth and lag-free chatting experience with GoofCord's superior speed and responsiveness. GoofCord is built as a standalone client and doesn't rely on the original Discord client in any way. GoofCord supports other client mods such as Vencord or Shelter which allows you to use plugins and themes.
    Downloads: 3 This Week
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  • 6

    Lights of Dreams IV

    Xylvan, the angelic messenger must save the 3800's World.

    Hi! A long time ago, Lights of Dreams: The Angelical Blade is a 3D adventure game staring Xylvan and is the first 3D game of Xilvan Design. A newer release appeared recently, we are now at v51.37 of Lights of Dreams IV: Far Above the Clouds. Please bookmark & share our projects. Hope you'll like our games in the near future. Friendly, Xylvan, Xilvan Design All Rights Reserved 2005-2024.
    Downloads: 0 This Week
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  • 7
    Signal iOS

    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.
    Downloads: 15 This Week
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  • 8
    GDevelop

    GDevelop

    The game engine for everyone

    GDevelop is an open-source, cross-platform game development software designed to make creating HTML5 and native games easy for everyone. Experts and novices alike can create their own games with GDevelop as it is fast and easy to learn, requiring no knowledge in a specific programming language. What makes GDevelop unique and so easy to use is its powerful and intuitive event-based system. Events are a powerful way to build up your game logic, without having to learn a programming language. GDevelop also features ready-made behaviors for your game objects, and allows you to create new behaviors through the easy to learn events. And when you're done, you can publish your game just about anywhere-- web, iOS, Android, Windows, Mac, Linux and even Facebook Messenger. Making games has never been easier or faster than with GDevelop!
    Downloads: 1 This Week
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  • 9
    ZaDark – Zalo Dark Mode

    ZaDark – Zalo Dark Mode

    Dark Mode tốt nhất cho Zalo

    ZaDark là tiện ích giúp kích hoạt Dark Mode cho Zalo PC và Web. [Điểm nổi bật] - Màu sắc đẹp, độ tương phản tốt - Tuỳ chỉnh giao diện trực tiếp trên Zalo: Sáng, Tối hoặc Hệ thống - Tuỳ chỉnh phông chữ, cỡ chữ - Tuỳ chỉnh hình nền cuộc trò chuyện - Dịch nhanh tin nhắn sang ngôn ngữ tuỳ chỉnh - Chống nhìn trộm tin nhắn - Ẩn trạng thái: Đang soạn tin, Đã nhận và Đã xem - Mã nguồn mở: https://github.com/quaric/zadark [Ghi chú] - ZaDark là sản phẩm từ Quaric, không phải sản phẩm từ Zalo Group - ZaDark không thay đổi bất cứ dữ liệu nào liên quan tài khoản Zalo của bạn - ZaDark chưa bao giờ thu thập và sẽ không bao giờ thu thập bất kỳ dữ liệu cá nhân nào như lịch sử duyệt web, mật khẩu,... --- ZaDark by Quaric Website: https://zadark.com
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    Downloads: 205 This Week
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  • We help you deliver Virtual and Hybrid Events using our Award Winning end-to-end Event Management Platform Icon
    We help you deliver Virtual and Hybrid Events using our Award Winning end-to-end Event Management Platform

    Designed by event planners for event planners, the EventsAIR platform gives you the ability to manage your event, conference, meeting or function with

    EventsAIR have been anticipating and responding to the ever-changing event industry needs for over 30 years, providing innovative solutions that empower event organizers to create successful events around the globe.
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    Pidgin IM

    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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    Downloads: 5,833 This Week
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  • 11
    Laravel Telegraph

    Laravel Telegraph

    Telegraph is a Laravel package for fluently interacting with Telegram

    Telegraph is a Laravel package for fluently interacting with Telegram Bots made by def:studio.
    Downloads: 0 This Week
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  • 12
    GiftedChat

    GiftedChat

    The most complete chat UI for React Native

    See the files in example-slack-message for an example of how to override the default UI to make something that looks more like Slack, with usernames displayed and all messages on the left. Avatar as user's initials. Localized dates. Multi-line TextInput. InputToolbar avoiding keyboard. Redux support. System message. Quick Reply messages (bot). Typying indicatior react-native-typing-animation. If you decide to specify a text prop, GiftedChat will no longer manage its own internal text state and will defer entirely to your prop. This is great for using a tool like Redux, but there's one extra step you'll need to take, simply implement onInputTextChanged to receive typing events and reset events (e.g. to clear the text onSend). If you are using Create React Native App / Expo, no Android specific installation steps are required, you can skip this section. Otherwise, we recommend modifying your project configuration.
    Downloads: 4 This Week
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  • 13
    Lots of small projects: games, VST plugins, experimental IRC server, ROM hacking tools, net tools, font tools, html tools, etc. Browse CVS!
    Downloads: 0 This Week
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  • 14
    Frost
    Freenet front end written in Java. Supports multiple up/downloads, messages, searching and more.
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    Downloads: 97 This Week
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  • 15
    WhatSie

    WhatSie

    Feature rich WhatsApp Client for Desktop Linux

    Feature-rich WhatsApp web client based on Qt WebEngine for Linux Desktop.
    Downloads: 3 This Week
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  • 16
    Rocket.Chat Community Version

    Rocket.Chat Community Version

    The Leading Open Source Communication Hub | Community Version

    Own your Communication with the all-in-one platform made for customer support and team collaboration. Lead with the open-source power: data security and flexibility at your hands. *NOTE: This is our Community Version product page. To know more about all of the possibilities within Rocket.Chat, check our Enterprise product page https://sourceforge.net/software/product/Rocket.Chat/ Rocket.Chat is a reliable communication platform for high-private team chatting and collaboration. 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: 12 This Week
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  • 17
    Nextcloud Talk

    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.
    Downloads: 7 This Week
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  • 18
    Zulip

    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.
    Downloads: 0 This Week
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  • 19
    SimpleXMQ

    SimpleXMQ

    A reference implementation of the SimpleX Messaging Protocol

    A reference implementation of the SimpleX Messaging Protocol for simplex queues over public networks. SimpleXMQ is a message broker for managing message queues and sending messages over a public network. It consists of an SMP server, SMP client library, and SMP agent that implements SMP protocol for client-server communication and SMP agent protocol to manage duplex connections via simplex queues on multiple SMP servers. SMP protocol is inspired by Redis serialization protocol, but it is much simpler - it currently has only 10 client commands and 8 server responses.
    Downloads: 0 This Week
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  • 20
    UNA

    UNA

    PHP & MySQL based CMS with messenger

    Full featured CMS with social features. It has limited functionality by default and can be extended with additional modules. Additional modules includes such features as Education solution, Video Messenger, Events, Polls, Tasks, Forum, Market, Videos, Video Streaming and more
    Downloads: 2 This Week
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  • 21
    Telegram for Android

    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.
    Downloads: 5 This Week
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  • 22
    Element

    Element

    A glossy Matrix collaboration client for the web

    Element, formerly known as Vector and Riot, is a glossy Matrix collaboration client built using the Matrix React SDK. It offers teams, friends and organizations a secure, all in one chat app that is protected from pesky ads and data mining methods. All communications are done through the open global Matrix network, secured with end-to-end encryption. Element gives you all the services you need from a chat app: group chat, video calls, file sharing and more-- all done securely and in total privacy. Element has three different tiers of support for different environments, the most supported being the latest versions of Chrome, Firefox, and Safari on desktop OSes.
    Downloads: 3 This Week
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  • 23
    gtkcord4

    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.
    Downloads: 0 This Week
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  • 24
    Tock

    Tock

    Tock, the open source conversational AI toolkit

    Complete and autonomous NLU solution leveraging opensource libs, such as OpenNLP, Stanford, Duckling and more. Web, mobile, social networks, smart speakers and more. Create your bot once, connect it progressively to multiple channels as you need them. Simple graphical interfaces to build stories and models, manage multilingual and multichannel bots, better understand users with analytics. Program complex stories using Kotlin, Python or Node.js provided components, or integrate with any language by leveraging Tock APIs. Try Tock online, deploy in minutes using Docker running configurations, or setup your own platform to the Cloud, On-Premise, even embedded. More and more teams and companies trust in Tock and open conversational platforms. Built-in connectors for numerous text/voice channels, Messenger, WhatsApp, Google Assistant, Alexa, Twitter and more.
    Downloads: 1 This Week
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  • 25
    An IRC(u) services server framework written in C++. This server framework is capable of supporting as many individual clients as the protocol supports. Each client can be custom made by subclassing an existing fully functioning client.
    Downloads: 0 This Week
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