Showing 1084 open source projects for "open java projects"

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  • 1
    Revenge

    Revenge

    Revenge is a client modification for Discord mobile

    Revenge Bundle is the JavaScript bundle repository for Revenge, a Discord mobile client modification. It continues the Bunny project and focuses on customizing the Discord Android experience. The project lets users extend Discord through plugins, visual themes, custom fonts, and experimental feature access. The repository itself produces bundles that official Revenge loaders execute on supported Android setups. Installation is handled through loader projects such as root-based Xposed tooling...
    Downloads: 47 This Week
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  • 2
    Official Android SDK for Stream Chat

    Official Android SDK for Stream Chat

    Android Chat SDK ➜ Stream Chat API. UI component libraries for chat

    This is the official Android SDK for Stream Chat, a service for building chat and messaging applications. This library includes both a low-level chat SDK and a set of reusable UI components. Most users start with the UI components and fall back to the lower-level API when they want to customize things. We're proud to say that we're the first Android Chat SDK that supports Jetpack Compose! We released our Compose UI Components one day after the official Jetpack Compose 1.0 release and our...
    Downloads: 2 This Week
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  • 3
    Colanode

    Colanode

    Open-source and local-first Slack and Notion alternative

    Colanode is a free, open-source, local-first collaboration platform that combines team messaging, document editing, databases, and file management. Designed as an alternative to Slack and Notion, it provides self-hosted workspaces for individuals and organizations. Users can exchange messages, create rich-text pages, and organize projects through customizable databases.
    Downloads: 7 This Week
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  • 4
    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...
    5.0 out of 5 stars 2 Reviews
    Downloads: 22 This Week
    Last Update:
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  • 5
    JDA

    JDA

    Java wrapper for the popular chat & VOIP service

    JDA strives to provide a clean and full wrapping of the Discord REST api and its Websocket-Events for Java. This library is a helpful tool that provides the functionality to create a discord bot in java. Discord is currently prohibiting the creation and usage of automated client accounts (AccountType.CLIENT). We have officially dropped support for client login as of version 4.2.0! Note that JDA is not a good tool to build a custom discord client as it loads all servers/guilds on startup,...
    Downloads: 7 This Week
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  • 6
    serenity

    serenity

    A Rust library for the Discord API

    Serenity is a Rust library for building Discord bots and integrations through Discord’s official API. It wraps Discord’s HTTP and gateway systems so developers can handle messages, events, commands, cache data, and bot sessions from Rust. The library provides a client builder, token validation, event dispatching, context objects, and handlers for reacting to Discord activity. It also manages gateway shards transparently, which reduces the complexity of scaling bot connections. Serenity...
    Downloads: 2 This Week
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  • 7
    Discord Presence

    Discord Presence

    Update your discord status with a rich presence

    Discord Presence is a Visual Studio Code extension that updates a user’s Discord status with rich presence while they code. It shows what file or project the user is editing, making development activity visible to Discord friends or communities. The extension supports more than 200 popular programming languages, so it can display useful context across many types of projects. It also lets users enable or disable rich presence for individual workspaces, which is helpful for private or...
    Downloads: 1 This Week
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  • 8
    linen.dev

    linen.dev

    Lightweight Google-searchable Slack alternative for Communities

    ...Linen focuses on preserving useful public discussion while limiting the amount of private member information it stores. It is a strong fit for developer communities, open-source projects, and support-heavy groups that want chat content to become long-term documentation.
    Downloads: 0 This Week
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  • 9
    disease.sh

    disease.sh

    API for Current cases and more stuff about COVID-19 and Influenza

    disease.sh API is an open-source disease statistics API focused on COVID-19, influenza, and related public health datasets. It provides access to global summaries, regional statistics, mobility data, and selected official government data. The project aggregates information from multiple public sources and exposes it through developer-friendly endpoints. It is built for dashboards, educational projects, data visualizations, bots, and applications that need structured disease-related information. ...
    Downloads: 0 This Week
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  • 10
    Zulip Desktop

    Zulip Desktop

    Zulip Desktop client for Mac, Windows and Linux

    Zulip Desktop is a free, open-source desktop client for the Zulip team communication and collaboration platform. Built with Electron, it provides a dedicated messaging environment for Windows, macOS, and Linux. The application supports signing in to multiple Zulip organizations and switching between their conversations. Zulip's topic-based messaging structure helps teams organize discussions and maintain context across long-running projects.
    Downloads: 0 This Week
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  • 11
    Signal Server

    Signal Server

    Server supporting the Signal Private Messenger applications on Android

    Signal Server is the official backend server component that supports the Signal Private Messenger ecosystem on Android, iOS, and desktop platforms, serving as the trusted message relay, contact discovery, and push notification hub while the clients handle end-to-end encryption. Built in Java and licensed under the AGPL-3.0 license, this server software handles protocols for delivering encrypted messages, synchronizing user metadata like public keys and push tokens, and providing REST and...
    Downloads: 1 This Week
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  • 12
    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....
    Downloads: 1 This Week
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  • 13
    CIM

    CIM

    Distributed instant messaging system for developers

    CIM(CROSS-IM)A developer-oriented system, provides components to help developers build their own distributed instant messaging system that can be a horizontal scaling IM. CIM is an IM Instant messaging system, can be applied as a message push middleware. IOT Message transparent transmission middleware in massive connection scenarios. Provides flexible horizontal expansion and contraction according to the actual situation. The server automatically removes offline clients. Client reconnects...
    Downloads: 1 This Week
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  • 14
    libsignal

    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...
    Downloads: 1 This Week
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  • 15
    Facebook SDK for Android

    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...
    Downloads: 2 This Week
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  • 16
    MobileIMSDK

    MobileIMSDK

    The original full-platform IM communication layer framework

    MobileIMSDK is a lightweight cross-platform instant messaging communication framework designed for real-time chat and push-style communication. It supports multiple client platforms, including iOS, Android, Java, HTML5, mini programs, UniApp, and HarmonyOS Next, with a Netty-based server side. The framework is notable for supporting UDP, TCP, and WebSocket protocols in the same open-source IM communication layer. It has been developed and refined over many years, making it a mature option for teams building custom messaging systems. MobileIMSDK focuses on the communication layer rather than a complete consumer chat app, so developers can build their own user interface and business logic on top of it. ...
    Downloads: 0 This Week
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  • 17
    Tinode Instant Messaging Server

    Tinode Instant Messaging Server

    Instant messaging platform

    Instant messaging server. Backend in pure Go (license GPL 3.0), client-side binding in Java, Javascript, and Swift, as well as gRPC client support for C++, C#, Go, Java, Node, PHP, Python, Ruby, Objective-C, etc. (license Apache 2.0). Wire transport is JSON over websocket (long polling is also available) for custom bindings, or protobuf with gRPC. Persistent storage is any one of RethinkDB, MySQL or MongoDB. A third-party unsupported DynamoDB adapter also exists.
    Downloads: 0 This Week
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  • 18
    Anonomi Messenger

    Anonomi Messenger

    A decentralized, privacy-first Android communication app built

    Anonomi Messenger is a free, open-source Android messaging application designed for private communication in environments where surveillance and network restrictions are concerns. It uses decentralized peer-to-peer connections without relying on central messaging servers. Online communications can travel through Tor, including bridges when direct connections are blocked. Offline messaging works through Wi-Fi, Bluetooth, and external storage using store-and-forward transfers. Its design...
    Downloads: 0 This Week
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  • 19
    Answer Overflow

    Answer Overflow

    Powering Discord content discovery by making web pages from threads

    ...It can index questions, organize solved discussions, provide analytics, and surface insights about common problems and helpful contributors. Large technical communities can use it to transform repeated Discord answers into long-term public knowledge. It is especially useful for developer tools, open-source projects, and support-heavy servers that rely on Discord as a primary help channel.
    Downloads: 0 This Week
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  • 20
    Frost
    Freenet front end written in Java. Supports multiple up/downloads, messages, searching and more.
    5.0 out of 5 stars 1 Review
    Downloads: 105 This Week
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  • 21
    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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  • 22
    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 10.1.60 as...
    Downloads: 6 This Week
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  • 23
    A SSH based chatroom framework; inspired by "ssh-chat" project. This framework support not only the IRC-like command line interface, but also custom clients by providing an API. Unlike the public chat-room of ssh-chat, this implementation requiring all users must be authenticated by public key before starting a chat; however public chatrooms are still possible by hacking OpenSSH server, see Wiki page 'Public Chatroom' for details.
    Downloads: 5 This Week
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  • 24

    Ciphero

    Secure communication software

    Securely cipher your message or file, share it, safely de-cipher it.
    Downloads: 1 This Week
    Last Update:
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  • 25
    BlackBelt WASTE- ipv4 Tor i2p AI Voice

    BlackBelt WASTE- ipv4 Tor i2p AI Voice

    Modern, AI-Smart, WASTE p2p for ipv4, Tor and i2p + Voice Conference.

    Open Source - GPLv3 inc images. A WASTE client. Download and create your own WASTE networks. Move 1000's of GB's at 100MB+ per sec. (800 Mbits per sec) FULL pause and resume capable. Voice Conference, Chat, Transfer files and Participate in Forums in a secure environment. For Windows XP 32/64, Vista 32/64, Win7 32/64, Win8 32/64, Win 10, Win 11, Linux (WINE). *** User Based Access Control - for voice, chats, file transfers and uploads. (useful in NULLNETS) *** Distributed...
    5.0 out of 5 stars 1 Review
    Downloads: 11 This Week
    Last Update:
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