Showing 3143 open source projects for "server"

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    PRTG Catches Network Issues Before They Cause Downtime

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  • 1
    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 service APIs for the client apps to interact with. ...
    Downloads: 3 This Week
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  • 2
    Spacebar Server

    Spacebar Server

    A reimplementation of the Discord.com backend, built with Typescript

    Spacebar Server is a Discord-compatible backend reimplementation written mainly in TypeScript. It aims to let users run a self-hosted communication server that can work with existing Discord-style bots, applications, and clients where compatibility allows. The repository includes the HTTP API server, WebSocket gateway, CDN server, WebRTC server, request and response schemas, database models, and administrative utilities.
    Downloads: 0 This Week
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  • 3
    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.
    Downloads: 0 This Week
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  • 4
    NATS

    NATS

    Server for NATS.io, the cloud and edge native messaging system

    ...Security is bifurcated from topology, so you can connect anywhere in a deployment and NATS will do the right thing. With the ability to process millions of messages a second per server, you’ll find unparalleled efficiency with NATS. Save money by minimizing cloud costs with reduced compute and network usage for streams, services, and eventing. NATS self-heals and can scale up, down, or handle topology changes anytime with zero downtime to your system. Clients require zero awareness of NATS topology allowing you future proof your system to meet your needs of today and tomorrow.
    Downloads: 278 This Week
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  • Demo Series - Small Business Backup By Veeam Icon
    Demo Series - Small Business Backup By Veeam

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  • 5
    Mumble

    Mumble

    Mumble is an open-source, low-latency, high quality voice chat

    ...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.
    Downloads: 10 This Week
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  • 6
    LocalSend

    LocalSend

    An open-source cross-platform alternative to AirDrop

    LocalSend is a free, open-source app that allows you to securely share files and messages with nearby devices over your local network without needing an internet connection. LocalSend is a cross-platform app that enables secure communication between devices using a REST API and HTTPS encryption. Unlike other messaging apps that rely on external servers, LocalSend doesn't require an internet connection or third-party servers, making it a fast and reliable solution for local communication.
    Downloads: 208 This Week
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  • 7
    FusionPBX

    FusionPBX

    A domain based multi-tenant PBX & voice switch for FreeSWITCH

    FusionPBX is a multi-tenant PBX and voice switch for FreeSWITCH, a highly scalable, multi-threaded, cross-platform communication platform. FusionPBX can be used either as a single or domain based PBX, and offers several functionalities: as carrier grade switch, call center server, voicemail server, fax server, conference server, VoIP server, multi-tenant appliance framework and so much more. It also offers unlimited extensions, device provisioning, music on hold, call parking, automatic call distribution and many other superb features. Give your company the business functionality and corporate level phone system it needs with FusionPBX!
    Downloads: 2 This Week
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  • 8
    Service Bus Explorer

    Service Bus Explorer

    Connect to a Service Bus namespace and administer messaging entities

    ...Postal services make it very easy to send different kinds of letters and packages with a variety of delivery guarantees, anywhere in the world. The Service Bus Explorer 2.1.0 can be used with the Service Bus for Windows Server 1.1. The Service Bus Explorer 2.1.0 uses a version of the Microsoft.ServiceBus.dll client library.
    Downloads: 62 This Week
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  • 9
    MQTTnet

    MQTTnet

    High performance .NET library for MQTT based communication

    MQTTnet is a high-performance .NET library for MQTT-based communication. It provides an MQTT client and an MQTT server (broker) and supports the MQTT protocol up to version 5. TLS support for client and server (but not UWP servers). Extensible communication channels (e.g. In-Memory, TCP, TCP+TLS, WS). Lightweight (only the low-level implementation of MQTT, no overhead). Performance optimized (processing ~150.000 messages/second). Uniform API across all supported versions of the MQTT protocol. ...
    Downloads: 7 This Week
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    99.99% Uptime for MySQL and PostgreSQL Databases

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  • 10
    Cloud Torrent

    Cloud Torrent

    Cloud Torrent, a self-hosted remote torrent client

    Cloud torrent is a a self-hosted remote torrent client, written in Go (golang). You start torrents remotely, which are downloaded as sets of files on the local disk of the server, which are then retrievable or streamable via HTTP. Go is required to install from source. The provided set of core features requires large structural changes and therefore requires a complete rewrite for best results. This rewrite is in progress in the 0.9 branch though it will take quite some time. It will be capable of transfering files from and source file-system to any destination file-system. ...
    Downloads: 22 This Week
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  • 11
    Mail-in-a-Box

    Mail-in-a-Box

    Take back control of your email with this mail server in a box

    Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server, a mail server in a box. Mail-in-a-Box lets you become your own mail service provider in a few easy steps. It’s sort of like making your own gmail, but one you control from top to bottom. Technically, Mail-in-a-Box turns a fresh cloud computer into a working mail server. But you don’t need to be a technology expert to set it up. ...
    Downloads: 1 This Week
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  • 12
    YABDP4Nitro

    YABDP4Nitro

    Yet Another BetterDiscord Plugin for Nitro features

    YABDP4Nitro is a BetterDiscord plugin focused on expanding Discord’s local client experience with Nitro-like interface enhancements. It includes options related to screen sharing quality, emoji usage, profile styling, client themes, and other customization features. The project is made for users who already run BetterDiscord and want a single plugin that groups many premium-style visual and usability tweaks. It is not affiliated with Discord, and its functionality may conflict with Discord’s...
    Downloads: 82 This Week
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  • 13
    PHPMailer

    PHPMailer

    The classic email sending library for PHP

    PHPMailer – A full-featured email creation and transfer class for PHP. Support for UTF-8 content and 8bit, base64, binary, and quoted-printable encodings. SMTP authentication with LOGIN, PLAIN, CRAM-MD5, and XOAUTH2 mechanisms over SMTPS and SMTP+STARTTLS transports. Validates email addresses automatically. Many PHP developers need to send email from their code. The only PHP function that supports this directly is mail(). However, it does not provide any assistance for making use of popular...
    Downloads: 132 This Week
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  • 14
    ownCloud

    ownCloud

    ownCloud web server core (Files, DAV, etc.)

    ownCloud Core is the foundational server component of the ownCloud ecosystem, providing a self-hosted platform for secure file storage, synchronization, and sharing across devices and teams. It enables organizations and individuals to maintain full control over their data by running a personal cloud on their own infrastructure rather than relying on third-party providers.
    Downloads: 12 This Week
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  • 15
    YAGPDB

    YAGPDB

    Yet another general purpose discord bot

    YAGPDB, short for Yet Another General Purpose Discord Bot, is a modular multifunctional bot for Discord servers. It includes many server-management plugins, including moderation, logs, custom commands, reminders, reputation, feeds, notifications, and server statistics. The project is designed so different plugins can provide separate features while still depending on shared bot infrastructure when needed. It also includes a web control panel workflow for managing authorization and server configuration. ...
    Downloads: 3 This Week
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  • 16
    ipfs-check

    ipfs-check

    A tool for checking the accessibility of your data by IPFS peers

    A tool for checking the accessibility of your data by IPFS peers. go build will build the server binary in your local directory. go install will build and install the server binary in your global Go binary directory (e.g. ~/go/bin) There are web assets in the web that interact with the Go HTTP server that can be deployed however you deploy web assets. Maybe just deploy it on IPFS and reference it with DNSLink. For anything other than local testing you're going to want to have a proxy to give you HTTPS support on the Go server.
    Downloads: 1 This Week
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  • 17
    EdgeVPN

    EdgeVPN

    The immutable, decentralized, statically built p2p VPN

    Fully Decentralized. Immutable. Portable. Easy to use Statically compiled VPN and a reverse proxy over p2p. EdgeVPN uses libp2p to build private decentralized networks that can be accessed via shared secrets.
    Downloads: 31 This Week
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  • 18
    BitTorrent Tracker

    BitTorrent Tracker

    Simple, robust, BitTorrent tracker (client & server) implementation

    A self-hosted, open-source BitTorrent tracker written in Node.js, allowing users to run their own torrent tracking server.
    Downloads: 3 This Week
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  • 19
    Element X Android

    Element X Android

    Android Matrix messenger application using the Matrix Rust SDK

    ...Built as the successor to earlier Matrix clients, Element X blends fast native Android development with a feature-rich experience that supports end-to-end encrypted messaging, voice and video calls, threaded conversations, and file sharing across federated Matrix servers. Unlike proprietary messaging apps, Element X connects to any compliant Matrix server, letting individuals host their own or join communities without centralized control, while still benefiting from robust cryptographic protections that ensure only intended recipients can read conversations. The app’s UI emphasizes responsiveness and ease of use with modern navigation patterns, customizable themes, and intuitive controls for group chats and spaces (Matrix’s equivalent of servers or room collections).
    Downloads: 11 This Week
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  • 20
    Jackett

    Jackett

    API Support for your favorite torrent trackers

    Jackett works as a proxy server, it translates queries from apps (Sonarr, Radarr, SickRage, CouchPotato, Mylar3, Lidarr, DuckieTV, qBittorrent, Nefarious, etc.) into tracker-site-specific HTTP queries, parses the HTML or JSON response, and then sends results back to the requesting software. This allows for getting recent uploads (like RSS) and performing searches.
    Downloads: 92 This Week
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  • 21
    Proton Mail Bridge

    Proton Mail Bridge

    Proton Mail Bridge application

    ...Because standard IMAP cannot natively decrypt end-to-end encrypted messages, Bridge acts as a translator that downloads encrypted mail, decrypts it locally, and serves it to your preferred mail client over a local server, while encrypting outgoing messages before they’re sent to Proton’s servers. It provides a seamless integration layer for users who need offline support, familiar local client workflows, or tighter integration with desktop tools while preserving Proton’s zero-access encryption model. The Bridge app continues running even when its GUI is closed so that mail clients can remain connected and synchronized, and it supports automatic startup and robust credential handling via secure storage.
    Downloads: 13 This Week
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  • 22
    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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  • 23
    Synapse

    Synapse

    Matrix reference homeserver

    Matrix is an ambitious new ecosystem for open federated Instant Messaging and VoIP. Everything in Matrix happens in a room. Rooms are distributed and do not exist on any single server. Rooms can be located using convenience aliases like #matrix:matrix.org or #test:localhost:8448. Synapse is currently in rapid development, but as of version 0.5 we believe it is sufficiently stable to be run as an internet-facing service for real usage! Create and manage fully distributed chat rooms with no single points of control or failure. ...
    Downloads: 45 This Week
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  • 24
    NewsNow

    NewsNow

    Elegant reading of real-time and hottest news

    ...A default cache improves performance, while signed-in users can request an immediate refresh. GitHub OAuth enables account access and synchronized user data. NewsNow can be deployed to platforms such as Cloudflare Pages or Vercel, with optional server-side caching and database configuration. It also exposes an MCP server so compatible AI clients can retrieve news through a structured tool connection.
    Downloads: 0 This Week
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  • 25
    HP Socket

    HP Socket

    High Performance TCP/UDP/HTTP communication component

    Server Based on IOCP/EPOLL communication model, combined with technology of memory pool, private heap etc., efficient memory management is implemented to support large scale and high concurrent communication scenarios. Agent The Agent component is essentially a Multi-Client component that uses the same technical architecture as the Server component.
    Downloads: 3 This Week
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