Open Source Linux Application Servers
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Application Servers for Linux
View 19 business solutionsBrowse free open source Application Servers and projects for Linux below. Use the toggles on the left to filter open source Application Servers by OS, license, language, programming language, and project status.
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99.99% Uptime for MySQL and PostgreSQL DatabasesCloud SQL Enterprise Plus delivers near-zero downtime with 35 days of point-in-time recovery. Supports MySQL, PostgreSQL, and SQL Server.
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Build Agents and Models on One PlatformGemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
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SAP NetWeaver Server Adapter for Eclipse
Integrates Eclipse with the SAP NetWeaver Application Server
Integrates Eclipse with the SAP NetWeaver Application Server. -
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RabbitMQ Server
Core server and tier 1 (built-in) plugins
RabbitMQ is the most widely deployed open source message broker. With tens of thousands of users, RabbitMQ is one of the most popular open source message brokers. From T-Mobile to Runtastic, RabbitMQ is used worldwide at small startups and large enterprises. RabbitMQ is lightweight and easy to deploy on premises and in the cloud. It supports multiple messaging protocols. RabbitMQ can be deployed in distributed and federated configurations to meet high-scale, high-availability requirements. RabbitMQ runs on many operating systems and cloud environments, and provides a wide range of developer tools for most popular languages. Supports multiple messaging protocols, message queuing, delivery acknowledgement, flexible routing to queues, multiple exchange type. Deploy as clusters for high availability and throughput; federate across multiple availability zones and regions. HTTP-API, command line tool, and UI for managing and monitoring RabbitMQ. -
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HFS (HTTP File Server)
HFS is a web file server to run on your computer
HFS is a lightweight HTTP file server for Windows that allows users to share files over the web easily, turning their local machine into a file server. -
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Vaultwarden
Bitwarden compatible server written in Rust
Basically full implementation of Bitwarden API is provided including organizations support, attachments, vault API support, serving the static files for Vault interface, website icons API, authenticator and U2F support, yubiKey and Duo support. Pull the docker image and mount a volume from the host for persistent storage. This will preserve any persistent data under /vw-data/, you can adapt the path to whatever suits you. Some web browsers, like Chrome, disallow the use of Web Crypto APIs in insecure contexts. In this case, you might get an error like Cannot read property 'importKey'. To solve this problem, you need to access the web vault from HTTPS. This can be configured in vaultwarden directly or using a third-party reverse proxy (some examples). If you have an available domain name, you can get HTTPS certificates with Let's Encrypt, or you can generate self-signed certificates with utilities like mkcert. Some proxies automatically do this step, like Caddy. -
$300 Free Credits to Build on Google CloudPut your $300 in credit toward real workloads, then keep building with free monthly usage for 20+ products. No commitment and no charge until you upgrade.
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webhook
webhook is a lightweight incoming webhook server to run shell commands
webhook is a lightweight configurable tool written in Go, that allows you to easily create HTTP endpoints (hooks) on your server, which you can use to execute configured commands. You can also pass data from the HTTP request (such as headers, payload or query variables) to your commands. webhook also allows you to specify rules which have to be satisfied in order for the hook to be triggered. For example, if you're using Github or Bitbucket, you can use webhook to set up a hook that runs a redeploy script for your project on your staging server, whenever you push changes to the master branch of your project. If you use Mattermost or Slack, you can set up an "Outgoing webhook integration" or "Slash command" to run various commands on your server, which can then report back directly to you or your channels using the "Incoming webhook integrations", or the appropriate response body. -
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lichess.org
The forever free, ad-free and open source chess server
lichess.org (also known as Lila - lichess in Scala) is a free and open source chess server written in Scala 2.13 that focuses on real time gameplay and ease of use. It’s where countless chess players and chess enthusiasts can gather and watch or play from a selection of over a million games every day, analyze games, learn and improve their playing. lichess is equipped with a search engine, computer analysis, tournaments, exhibitions, a mobile app, a shared analysis board, and so much more. Thanks to its large active community, the UI is available in more than 130 different languages. lichess is one of the most popular chess websites in the world and remains totally free and ad-free. Visit https://lichess.org today to know more and see what it’s about! -
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µWebSockets
Compliant web server for the most demanding of applications
Being meticulously optimized for speed and memory footprint, µWebSockets is fast enough to do encrypted TLS 1.3 messaging quicker than most alternative servers can do even unencrypted, cleartext messaging. Furthermore, we partake in Google's OSS-Fuzz with a ~95% daily fuzzing coverage with no sanitizer issues. LGTM scores us flawless A+ from having zero CodeQL alerts and we compile with pedantic warning levels. µWebSockets is written entirely in C & C++ but has a seamless integration for Node.js backends. This allows for rapid scripting of powerful apps, using widespread competence. We've been fully standards compliant with a perfect Autobahn|Testsuite score since 2016. Companies with everything to lose rely on µWebSockets on a daily basis - we power the trading APIs of Bitfinex.com & Kraken.com, handling volumes of multiple billions of USD every day. Other companies include Trello, where µWebSockets is serving their 50 million users with real-time board updates. -
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Jenkins
Build great things at any scale
Jenkins is the leading open-source automation server that allows you to build great things at any scale. Jenkins is built with Java and provides hundreds of plugins for building, deploying and automating virtually anything, allowing you to focus on more important things. Jenkins is often used for building projects, running tests, analyzing static code and deployment. Whatever is done repetitively, Jenkins can most likely execute and execute well, saving you time and optimizing your development process. Jenkins is easy to install, easy to configure and extensible via its plugin architecture. Start building smart with Jenkins! -
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Telegraf
The plugin-driven server agent for collecting and reporting metrics
Telegraf is an agent for collecting, processing, aggregating, and writing metrics. Design goals are to have a minimal memory footprint with a plugin system so that developers in the community can easily add support for collecting metrics. Telegraf is plugin-driven and has the concept of 4 distinct plugin types. Input Plugins collect metrics from the system, services, or 3rd party APIs. Processor Plugins transform, decorate, and/or filter metrics. Aggregator Plugins create aggregate metrics (e.g. mean, min, max, quantiles, etc.). Output Plugins write metrics to various destinations. New plugins are designed to be easy to contribute, pull requests are welcomed and we work to incorporate as many pull requests as possible. You can try Telegraf right in your browser in the Telegraf playground. Telegraf shares the same minimum requirements as Go. -
Custom VMs From 1 to 96 vCPUs With 99.95% UptimeLive migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
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nvm
Version manager for node.js
Node Version Manager or nvm is a POSIX-compliant bash script for managing multiple active node.js versions. It allows you to access every long term support (LTS) version of node.js, download any of these remote LTS versions locally, set up aliases so you can easily switch between downloaded Node versions, and automatically use the version of node.js that is specified if a .nvmrc file is present. Nvm can work on any POSIX-compliant shell, particularly on windows WSL, macOS and unix platforms. It is designed to be installed per-user, and invoked per-shell. -
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Node Redis
A high performance Node.js Redis client
This library is a 1 to 1 mapping of the Redis commands. Each Redis command is exposed as a function on the client object. All functions take either an args Array plus optional callback Function or a variable number of individual arguments followed by an optional callback. Node Redis currently doesn't natively support promises (this is coming in v4), however you can wrap the methods you want to use with promises using the built-in Node.js util.promisify method on Node.js >= v8. Care should be taken with user input if arrays are possible (via body-parser, query string or other method), as single arguments could be unintentionally interpreted as multiple args. Minimal parsing is done on the replies. Commands that return a integer return JavaScript Numbers, arrays return JavaScript Array. HGETALL returns an Object keyed by the hash keys. All strings will either be returned as string or as buffer depending on your setting. -
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Impostor
An open source reimplementation of the Among Us Server
Impostor is an open source reimplementation of the Among Us Server, written in C#. It is among the first Among Us private servers with support for Steam, Itch, Android and iOS. It is a full replacement of the game's official server, so you can expect all of the game's features to be included, and the same fun playing experience. The difference of course is that you get to play on a private and secure server. Impostor has plugin support as well as a server-sided anticheat feature. You also have the option of playing on a server hosted by someone else. -
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NATS
Server for NATS.io, the cloud and edge native messaging system
With flexible deployments models using clusters, superclusters, and leaf nodes, optimize communications for your unique deployment. The NATS Adaptive Edge Architecture allows for a perfect fit for unique needs to connect devices, edge, cloud or hybrid deployments. With true multi-tenancy, securely isolate and share your data to fully meet your business needs, mitigating risk and achieving faster time to value. 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. -
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Agones
Dedicated Game Server Hosting and Scaling for Multiplayer Games
Multiplayer dedicated game servers anywhere. An open source, batteries-included, multiplayer dedicated game server scaling and orchestration platform that can run anywhere Kubernetes can run. Define and manage groups of ready-game servers through YAML configuration or API calls. Integrated SDK for managing game server lifecycle, health and configuration. Integration with OpenCensus for platform-independent game server metrics and monitoring dashboards. Agones replaces usual bespoke or proprietary cluster management and game server scaling solutions with a Kubernetes cluster that includes the Agones custom Kubernetes Controller and matching Custom Resource Definitions for GameServers, Fleets and more. With Agones, Kubernetes gets native abilities to create, run, manage and scale dedicated game server processes within Kubernetes clusters using standard Kubernetes tooling and APIs. This model also allows any matchmaker to interact directly with Agones via the Kubernetes API. -
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MailSlurper
Local, web-based mail server application. Slurp mails into oblivion!
MailSlurper is a small SMTP mail server that slurps mail into oblivion! MailSlurper is perfect for individual developers or small teams writing mail-enabled applications that wish to test email functionality without the risk or hassle of installing and configuring a full-blown email server. It's simple to use! Simply set up MailSlurper, configure your code and/or application server to send mail through the address where MailSlurper is running, and start sending emails! MailSlurper will capture those emails into a database for you to view at your leisure. The following are general instructions for compiling MailSlurper. Your details may vary a bit here and there. The below example is based on a Unix-style system, such as Ubuntu or OSX. Furthermore, for instructional purposes, it is assumed that your GOPATH is set to ~/code/go, and that you have a folder in your source directory called github.com. Your setup may vary. -
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Coolify
An open-source & self-hostable Heroku / Netlify / Vercel alternative
Coolify is an open-source & self-hostable alternative to Heroku / Netlify / Vercel / etc. It helps you manage your servers, applications, and databases on your own hardware; you only need an SSH connection. You can manage VPS, Bare Metal, Raspberry PIs, and anything else. Imagine having the ease of a cloud but with your own servers. That is Coolify. No vendor lock-in, which means that all the configurations for your applications/databases/etc are saved to your server. So, if you decide to stop using Coolify, you could still manage your running resources. You lose the automation and all the magic. -
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Kubernetes
System to automate management of containerized applications
Kubernetes is an open-source container orchestration platform designed to automate the deployment, scaling, and management of containerized applications. Also known as K8s, it groups application containers into logical units for efficient management and service discovery. Built on Google’s extensive experience running production workloads at massive scale, Kubernetes delivers proven reliability and performance. It supports automated rollouts, self-healing, load balancing, and flexible storage orchestration. Kubernetes runs consistently across on-premises, hybrid, and public cloud environments, giving teams complete infrastructure freedom. -
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Capistrano
Remote multi-server automation tool
A remote server automation and deployment tool written in Ruby. Capistrano extends the Rake DSL with methods specific to running commands on() servers. Capistrano is written in Ruby, but it can easily be used to deploy any language. If your language or framework has special deployment requirements, Capistrano can easily be extended to support them. Capistrano is bundled as a Ruby Gem. It requires Ruby 2.0 or newer. Capistrano can be installed as a standalone Gem, or bundled into your application. It is recommended to fix the version number when using Capistrano, and is therefore recommended to use an appropriate bundler. The capistrano-rails gem includes extras specifically designed for Ruby on Rails, specifically Asset Pipeline Support and Database Migration Support. Capistrano deploys using SSH. Thus, you must be able to SSH (ideally with keys and ssh-agent) from the deployment system to the destination system for Capistrano to work. -
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Cloudbox
Ansible-based solution for rapidly deploying a Docker media server
Ansible allows for fast deployment of the Cloudbox server stack solution with minimal setup and in as little as 15 minutes. Cloudbox puts "all the pieces together" by automating server tasks, performance tweaks, and application setup, right out of the box. Applications in Docker containers are isolated from each other and allow for quick installs and easy uninstalls. Free and open-source software (FOSS). Collaborate on ideas and improvements. Build and share add-ons on the 'Community' repository. Store media on cloud storage to free up on local storage space. Use a domain name to access your server applications securely with SSL certificates from Let's Encrypt. Create backups directly on the cloud. Easily migrate to any server using the restore function. Engage with a large community of helpful members who share similar interests as you. Extend functionality by utilizing add-ons created by other members. -
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Haraka
A fast, highly extensible, and event driven SMTP server
Haraka is a highly scalable node.js email server with a modular plugin architecture. Haraka can serve thousands of concurrent connections and deliver thousands of messages per second. Haraka and plugins are written in asynchronous JS and are very fast. Haraka has very good spam protection (see plugins) and works well as a filtering MTA. It also works well as a MSA running on port 587 with auth and dkim_sign plugins enabled. Haraka makes no attempt to be a mail store (like Exchange or Postfix/Exim/Qmail), a LDA, nor an IMAP server (like Dovecot or Courier). Haraka is typically used with such systems. Haraka has a scalable outbound mail delivery engine built in. Mail marked as relaying (such as via an auth plugin) is automatically queued for outbound delivery. Haraka's plugin architecture provides an easily extensible MTA that complements traditional MTAs that excel at managing mail stores but do not have sufficient filtering. -
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Hazel
Lightweight update server for Electron apps
This project lets you deploy an update server for Electron apps with ease: You only need to click a button. The result will be faster and more lightweight than any other solution out there! Once it's deployed, paste the deployment address into your code (please keep in mind that updates should only occur in the production version of the app, not while developing). Since Hazel routes all the traffic for downloading the actual application files to GitHub Releases, you can use their API to determine the download count for a certain release. Display an overview page showing the cached repository with the different available platforms and file sizes. Links to the repo, releases, specific cached version and direct downloads for each platform are present. Automatically detects the platform/OS of the visitor by parsing the user agent and then downloads the appropriate copy of your application. -
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Netty-socketio
Socket.IO server implemented on Java
This project is an open-source Java implementation of Socket.IO server. Based on Netty server framework. Supports 0.7...0.9.16 (netty-socketio 1.6.6) and 1.0+ (netty-socketio latest version) version of Socket.IO-client. Supports distributed broadcast across netty-socketio nodes (Redisson, Hazelcast). Supports OSGi, supports Spring, lock-free and thread-safe implementation, and declarative handler configuration via annotations. YourKit is kindly supporting this open source project with its full-featured Java Profiler. YourKit, LLC is the creator of innovative and intelligent tools for profiling Java and .NET applications. CentOS, 1 CPU, 4GB RAM runned on VM, CPU 10%, Memory 15%, 6000 xhr-long polling sessions or 15000 websockets sessions, 4000 messages per second. -
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React Rails
Integrate React.js with Rails views and controllers
React-Rails is a flexible tool to use React with Rails. If you use Jbuilder to pass a JSON string to react_component, make sure your JSON is a stringified hash, not an array. This is not the Rails default, you should add the root node yourself. React-Rails 2.4.x uses React 16+ which no longer has React Addons. Therefore the pre-bundled version of react no longer has an addons version, if you need addons still, there is the 2.3.1+ version of the gem that still has addons. React-Rails supports plenty of file extensions such as: .js, .jsx.js, .js.jsx, .es6.js, .coffee, etcetera! Sometimes this will cause a stumble when searching for filenames. The require.context inserted into packs/application.js is used to load components. The component name tells react-rails where to load the component. -
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Tokio
A runtime for writing reliable asynchronous applications with Rust
Build reliable network applications without compromising speed, with Tokio! Tokio is an event-driven, non-blocking I/O platform and asynchronous runtime for the Rust programming language that allows you to write reliable and slim network applications. At a high level, Tokio provides a number of components needed for building asynchronous applications. These include a multithreaded, work-stealing based task scheduler; a reactor that's supported by the operating system's event queue; and asynchronous TCP and UDP sockets. Tokio is reliable in that its APIs are memory-safe, thread-safe, and misuse-resistant. Thanks to its task scheduler, it is also incredibly fast. It is capable of processing hundreds of thousands of requests per second with little to no overhead. -
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omnisharp-roslyn
OmniSharp server (HTTP, STDIO) based on Roslyn workspaces
OmniSharp is a .NET development platform based on Roslyn workspaces. It provides project dependencies and C# language services to various IDEs and plugins. OmniSharp is built with the .NET Core SDK on Windows and Mono on OSX/Linux. It targets the net472 target framework. For platforms other than Windows, OmniSharp ships with an embedded Mono which is based on version 6.12.0, includes MSBuild 16.8.0 and is provisioned during the build script. If Mono is globally installed on the system, OmniSharp will prefer it over the embedded version, however version >=6.4.0 is required (the lowest version with at least MSBuild 16.3.0). For Arch Linux users, you need package mono-msbuild (>= 16.3). In addition, if you need the HTTP interface and you want to run on Linux, you'll also need to make sure that you have libuv installed.
