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.

  • AI-powered service management for IT and enterprise teams Icon
    AI-powered service management for IT and enterprise teams

    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity. Maximize operational efficiency with refreshingly simple, AI-powered Freshservice.
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    Find Hidden Risks in Windows Task Scheduler

    Free diagnostic script reveals configuration issues, error patterns, and security risks. Instant HTML report.

    Windows Task Scheduler might be hiding critical failures. Download the free JAMS diagnostic tool to uncover problems before they impact production—get a color-coded risk report with clear remediation steps in minutes.
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  • 1
    status-react

    status-react

    A free (libre) open source, mobile OS for Ethereum

    Status is a secure messaging app, crypto wallet, and Web3 browser built with state-of-the-art technology. Join us in creating a browser, messenger, and gateway to a decentralized world. Status is a free (libre) open-source mobile client targeting Android & iOS built entirely on Ethereum technologies. That's right, no middle men and go-Ethereum running directly on your device. We believe in a medium of pure free trade, economies with fair, permission-less access and a world without intermediaries. We want to create policies that can exist between friends or scale globally, we want to communicate securely and be uninhibited by legacy systems. Safely send, store and receive cryptocurrencies including ERC20 and ERC721 tokens with the Status crypto wallet. Only you hold the keys to your funds. Status' intuitive design protects you and your funds from attacks. Status uses an open-source, peer-to-peer protocol, and end-to-end encryption to protect your messages from third parties.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 2
    aMSN

    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
    Downloads: 20 This Week
    Last Update:
    See Project
  • 3
    Apache RocketMQ

    Apache RocketMQ

    Distributed messaging and streaming platform with low latency

    Apache RocketMQ is a distributed messaging and streaming platform with low latency, high performance and reliability, trillion-level capacity and flexible scalability. Messaging patterns including publish/subscribe, request/reply and streaming. Financial grade transactional message. Built-in fault tolerance and high availability configuration options base on DLedger. A variety of cross language clients, such as Java, C/C++, Python, Go. Pluggable transport protocols, such as TCP, SSL, AIO. Built-in message tracing capability, also support opentracing. Versatile big-data and streaming ecosytem integration. Message retroactivity by time or offset. Reliable FIFO and strict ordered messaging in the same queue. Efficient pull and push consumption model. Million-level message accumulation capacity in a single queue. Multiple messaging protocols like JMS and OpenMessaging. Flexible distributed scale-out deployment architecture. Lightning-fast batch message exchange system.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 4
    A Windows Installer Database To XML Bi-Directional Converter. The command line tool msi2xml converts Windows Installer Databases (.msi) to text based XML files. The complementary tool xml2msi reconstructs the .msi from the XML file.
    Downloads: 40 This Week
    Last Update:
    See Project
  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    Build gen AI apps with an all-in-one modern database: MongoDB Atlas

    MongoDB Atlas provides built-in vector search and a flexible document model so developers can build, scale, and run gen AI apps without stitching together multiple databases. From LLM integration to semantic search, Atlas simplifies your AI architecture—and it’s free to get started.
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  • 5
    A pidgin plugin that allows user to assign global hotkeys (e.g. Ctrl+Alt+g) for togglling buddy list and reading queued message. When "Toggle List" hotkey is enabled, it makes the buddy list hidden from your taskbar and task switcher (similar to ICQ).
    Leader badge
    Downloads: 10 This Week
    Last Update:
    See Project
  • 6
    Yammy (Yahoo Messenger Archive Decoder) allows you to decode and view not only yours but, also other stored YM conversations. You don't even need a password!
    Downloads: 15 This Week
    Last Update:
    See Project
  • 7
    XDCC Browser
    XDCC Browser A mIRC based XDCC download manager.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 8
    XDCC Search and Viewer for mIRC & AdiIRC

    XDCC Search and Viewer for mIRC & AdiIRC

    mIRC & AdiIRC XDCC Search & Downloads on IRC for DCC

    Effortlessly browse and search XDCC packs with this streamlined tool for mIRC and AdiIRC, crafted by Eric^^. Say goodbye to tedious channel interactions! Simply load the script (`/load -rs xdccv.mrc`) and let it build a comprehensive database while you idle. Then, use the commands `/xdccv` or `/xdccs` to find your desired files. Keep it alive. Make it better. Compatible with Windows 10/11 and Linux via WINE. Get the latest updates and source code here: https://pastebin.com/HUmDgd0g
    Downloads: 11 This Week
    Last Update:
    See Project
  • 9
    P2Lan Transfer

    P2Lan Transfer

    Make LAN transfers easy, no server needed

    Github: https://github.com/TrongAJTT/p2lan-transfer. You want to transfer file between your devices and view them immediately, but: - Cable transfer: Fast, but the process of navigating and selecting photos on the laptop is unintuitive. - Third-party OTT apps: Inconvenient for sending many files, and photos may lose quality due to compression. - Cloud storage: Convenient and maintains photo quality, but requires the annoying extra step of deleting files afterward. Then, P2Lan Transfer may be a solution that suits you. P2Lan Transfer helps you share files and chat with devices on the same local network without requiring any central server or complex setup. Just run the app on both devices and they can find each other automatically. You can also chat and send media or file with other devices locally (no server needed) and sync clipboard with that chat. 💻 Platform Support: Android, Windows. - Web, Linux, MacOS may available in the future.
    Downloads: 6 This Week
    Last Update:
    See Project
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    Our Free Plans just got better! | Auth0

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    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
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  • 10
    pork, oidentd, iplog and ocd
    Downloads: 6 This Week
    Last Update:
    See Project
  • 11
    GoldBug - Encrypted Communications

    GoldBug - Encrypted Communications

    Chat Messenger. E-Mail-Client. Websearch. Filetransfer.

    GoldBug is a decentralized & secure communication suite that offers an integrated e-mail client, an instant messenger & a file transfer. Also included is an URL-RSS-DB & a p2p web search. Current vers. w/ McEliece Algorithm. GoldBug has been 2013 - 2023 ten years just another Graphical User Interface of the Spot-On Encryption Suite. Main GUI features: Minimal & colorful Interface with Tabs in the East. Microsoft & Qt MinGW deprecated Win32 & for Compiling: ● https://sourceforge.net/p/goldbug/wiki/compiling As Spot-On implemented the minimal GB-concept & Nuvola Icons, GoldBug has now been fully integrated into Spot-On Win64: Just choose Tabs at East & Mini-View in Options - w/ Nuvola Icons of course! Voilá! & Many Thanks, Pro-Files can be found archived at ● current source: https://github.com/textbrowser/spot-on ● EN Manual: https://www.amazon.com/dp/3749435065 ● DE: https://compendio.github.io/goldbug-manual-de/ ● Study: https://www.amazon.com/asin/dp/3750408971
    Downloads: 4 This Week
    Last Update:
    See Project
  • 12
    ATEN플O !!! ESTE SITE MUDOU-SE PARA <a href=http://www.sourceforge.net/projects/smsbr>http://www.sourceforge.net/projects/smsbr</a>.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 13
    Bluetooth Instant Messenger Valhallachat
    Valhalla Chat is a Bluetooth Instant Messenger (IM), that provides a common messaging platform for mobile phones, desktop computers and pdas.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 14
    Dirt

    Dirt

    An IRC proxy to add chat encryption to IRC clients

    Dirt is a multi-platform IRC proxy that adds FiSH-compatible chat encryption (including DH1080 key exchanges) to any IRC client. It can be used as a SOCKS proxy or as a simple bouncer. For security reasons, only localhost connections are allowed.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 15
    Office Communicator Logger
    Office Communicator Logger is a standalone Windows application which monitors Microsoft Office Communicator 2005 conversation windows in order to automatically save, organize, and provide access to conversation history.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 16
    <b>Msn4Lin</b> is a messenger client for X. At the moment available in Tcl/Tk (easy installation, but with failures) or C++ with <a href=/https/sourceforge.net/projects/xlion/>XLion</a> (difficult installation, but more stable). It supports plugins, skins, multilanguage, ...
    Downloads: 2 This Week
    Last Update:
    See Project
  • 17
    TgDownloader
    Download files of the Telegram channels or groups you are a member of.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 18
    TkDC++
    TkDC++ is the most simple and lightweight DC client available today. It can be used by the beginner and in a few minutes be downloading from DC. The more advanced user can also use it, as the advanced options can be selected.
    Leader badge
    Downloads: 1 This Week
    Last Update:
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  • 19
    Driver support for 3D Controller Hardware. We hope to support SDL Input, DirectInput, and other major controller API's including game consoles and embedded systems.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 20
    Avis is a multicast event bus. It provides a fast, publish/subscribe event routing service compatible with the commercial Elvin implementation developed by Mantara Software.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 21
    Server/client chat environment that allows a client to send a message or file to another client on the server. If the other client is not currently on the server, the server will save the file or message for that client to retrieve later on.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 22
    SyncShare Server is a secure messaging and real-time collaboration platform. Build solutions to connect people, data, and applications through firewalls and mobile devices. It handles all networking, security issues and lets one focus on the business
    Downloads: 1 This Week
    Last Update:
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  • 23

    MUSCLE

    Client-server networking library

    The MUSCLE system is a fast, portable, flexible client-server system for distributed applications. Clients send BMessage-like PortableMessages to each other either directly or via a centralized server (with built-in database and 'live query' support).
    Downloads: 1 This Week
    Last Update:
    See Project
  • 24
    Ce projet se décompose en 3 parties : La première partie consiste à simuler l’antenne du Lecteur RFID. La deuxième partie à réaliser est la partie modulation ou l’oscillation. La troisième partie est la partie contrôleur du système RFID
    Downloads: 1 This Week
    Last Update:
    See Project
  • 25
    SMSBR é uma ferramenta para envio de mensagens SMS. O envio é realizado através do site da operadora telefônica, ou seja, vocę deve estar conectado ŕ internet para enviar mensagems.
    Downloads: 1 This Week
    Last Update:
    See Project
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