Showing 102 open source projects for "cross platform sync"

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  • 1
    Telegram Desktop

    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.
    Downloads: 1,142 This Week
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  • 2
    Signal

    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.
    Downloads: 16 This Week
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  • 3
    DiscordChatExporter

    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. ...
    Downloads: 87 This Week
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  • 4
    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. ArmCord is built as a standalone client and doesn't rely on the original Discord client in any way. Enjoy Vencord, Shelter and their many features, or have a more vanilla experience, it's your choice! ArmCord natively supports theming of the entire app, you can easily import BetterDiscord themes and manage them. ArmCord automatically blocks all of Discord's trackers; even without any...
    Downloads: 194 This Week
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  • 5
    Halloy - IRC Client

    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
    Downloads: 8 This Week
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  • 6
    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...
    Downloads: 30 This Week
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  • 7
    Caprine

    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...
    Downloads: 18 This Week
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  • 8
    Bitchat

    Bitchat

    Bluetooth mesh chat, IRC vibes

    BitChat is a decentralized, peer-to-peer encrypted messaging app built by Jack Dorsey’s Permissionless Tech. It uses Bluetooth Low Energy mesh networking to relay messages without internet, servers, accounts, or phone numbers. Messages are end-to-end encrypted (Curve25519 + AES‑GCM) and the app includes a panic mode to erase data quickly.
    Downloads: 9 This Week
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  • 9
    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.
    Downloads: 5 This Week
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  • 10
    Psi+

    Psi+

    Psi+ Project — development branch of Psi XMPP client

    Psi is a cross-platform powerful XMPP client designed for experienced users. Psi+ is a development branch of Psi XMPP client. Previously is was a sort of fork but now just consider it as a space for nightly builds.
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    Downloads: 489 This Week
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  • 11
    JavaComm

    JavaComm

    Desktop communication tool: chat, telephony, multimedia

    JavaComm is a client–server communication platform offering chat, telephony, screen sharing, conferencing, a media player, and configurable media streams. Users can define and manage their own streams for flexible playback. All server-based communication runs over HTTPS (SSL/TLS), while file transfers are handled directly between users without passing through the server. The JavaComm Server runs on any Jakarta EE Web Profile 10 platform with the required extensions, using Tomcat 10.1.52 as...
    Downloads: 9 This Week
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  • 12
    bitchat

    bitchat

    bluetooth mesh chat, IRC vibes

    bitchat is a decentralized peer-to-peer messaging app that operates over Bluetooth mesh networks, enabling local group chats without the need for internet, servers, or phone numbers. It is designed with privacy and security in mind, offering encrypted private messages and channels alongside a public local chat that requires no registration.
    Downloads: 51 This Week
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  • 13
    P2Lan Transfer

    P2Lan Transfer

    Make LAN transfers easy, no server needed

    ...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: 3 This Week
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  • 14
    EOL Rambox CE

    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.
    Downloads: 14 This Week
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  • 15
    EiskaltDC++

    EiskaltDC++

    Program for filesharing using Direct Connect and ADC protocols

    EiskaltDC++ is a cross-platform program that uses the Direct Connect and ADC protocols. It is compatible with DC++, FlylinkDC++, LinuxDC++ and other DC clients. EiskaltDC++ also interoperates with all common DC hub software.
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    Downloads: 110 This Week
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  • 16

    LiteMessage

    A lightweight, peer-to-peer messaging program.

    A lightweight peer-to-peer messaging program that runs in the console. It also has a GUI version. It is currently very early in development. It is implemented in Java, so it is cross-platform. Currently developed using Java 8 (aka 1.8) It is distributed under the 3-clause BSD license. Planned features in the future include message encryption and file transfers. The most up-up-to-date source can be found on GitHub: https://github.com/cguy777/LiteMessage The MTools library can be found here: https://github.com/cguy777/MTools
    Downloads: 0 This Week
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  • 17
    Messaging APIs

    Messaging APIs

    Messaging APIs for multi-platform

    Messaging APIs is a mono repo that collects APIs needed for bot development. It helps you build your bots using a similar API for multiple platforms, e.g. Messenger, LINE. Learn once and make writing cross-platform bots easier. If you are looking for a framework to build your bots, Bottender may suit for your needs. It is built on top of Messaging APIs and provides some powerful features for bot building.
    Downloads: 3 This Week
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  • 18
    YakYak

    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.
    Downloads: 9 This Week
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  • 19
    cabal-cli

    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.​
    Downloads: 10 This Week
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  • 20
    Psi

    Psi

    Psi IM — Qt-based XMPP client

    Psi is cross-platform powerful XMPP client designed for experienced users. There are builds available for MS Windows, GNU/Linux and macOS.
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    Downloads: 356 This Week
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  • 21
    Riot Android

    Riot Android

    A glossy Matrix collaboration client for Android

    ...As the predecessor to Element X, Riot Android laid the groundwork for mobile access to Matrix while providing advanced features like threaded replies, rich media handling, room moderation, and custom notification controls. It integrates tightly with Android’s native platform capabilities, offering background sync, push notifications, and account management while keeping user cryptographic keys secure on the device for privacy. Users appreciate Riot’s ability to join public or private communities hosted across different Matrix servers, making it useful for both personal and organizational communication with interoperability at its core.
    Downloads: 0 This Week
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  • 22

    linjam

    A cross platform NINJAM client with linear chain-streaming mode

    LinJam is not NINJAM - Oh wait, yes it is! LinJam is linear NINJAM LinJam is a cross-platform NINJAM client utilizing the standard libninjam library and built upon the JUCE framework. It is the much needed modern replacement for the aging platform-specific clients with many new enhancements. The highest goal of the LinJam project is to flatten the pro-audio learning-curve; easing the intimidation that most non-technical musicians experience when they are first introduced to NINJAM. ...
    Downloads: 0 This Week
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  • 23
    ToXic Chat is a server-client, cross-platform, LAN chatting software. It combines many features found in other chat programs but has other unique features too.
    Downloads: 0 This Week
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  • 24
    Rocket.Chat Android

    Rocket.Chat Android

    Legacy mobile Rocket.Chat client in Kotlin for Android

    Rocket.Chat is a free and open-source team chat collaboration platform that allows users to communicate securely in real-time across devices on the web, desktop or mobile and to customize their interface with a range of plugins, themes and integrations with other key software. By opting for Rocket.Chat, users also benefit from free audio and video conferencing, guest access, screen and file sharing, LiveChat, LDAP Group Sync, two-factor authentication (2FA), E2E encryption, SSO, dozens of OAuth providers and unlimited users, guests, channels, messages, searches, and files. ...
    Downloads: 0 This Week
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  • 25
    Trebuchet is a 100% TCL cross-platform GUI MUD client, designed to be powerful and extensible, yet easy to use. This client also has support for advanced features, such as SSL encryption, and allowing the server to request custom GUI dialogs.
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    Downloads: 4 This Week
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