Browse free open source Java HTTP Servers and projects below. Use the toggles on the left to filter open source Java HTTP Servers by OS, license, language, programming language, and project status.

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  • 1
    GeoServer
    GeoServer is an open source software server written in Java that allows users to share and edit geospatial data. Designed for interoperability, it publishes data from any major spatial data source using open standards: WMS, WFS, WCS, WPS and REST
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    Downloads: 53,828 This Week
    Last Update:
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  • 2
    HyperSQL Database Engine (HSQLDB)
    HSQLDB is a relational database engine written in Java, with a JDBC driver, conforming to ANSI SQL:2023. A small, fast, multithreaded engine and server with memory and disk tables, LOBs, transaction isolation, multiversion concurrency and ACID.
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    Downloads: 414 This Week
    Last Update:
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  • 3
    Suwayomi-Server

    Suwayomi-Server

    A rewrite of Tachiyomi for the Desktop

    A free and open source manga reader server that runs extensions built for Tachiyomi. Suwayomi is an independent Tachiyomi compatible software and is not a Fork of Tachiyomi. Suwayomi-Server is as multi-platform as you can get. Any platform that runs java and/or has a modern browser can run it. This includes Windows, Linux, macOS, chrome OS, etc. Follow Downloading and Running the app for installation instructions.
    Downloads: 21 This Week
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  • 4
    Eclipse Jetty Canonical Repository

    Eclipse Jetty Canonical Repository

    Eclipse Jetty - Web Container & Clients - supports HTTP/2, HTTP

    Jetty provides a web server and servlet container, additionally providing support for HTTP/2, WebSocket, OSGi, JMX, JNDI, JAAS and many other integrations. These components are open source and are freely available for commercial use and distribution. Jetty is used in a wide variety of projects and products, both in development and production. Jetty has long been loved by developers due to its long history of being easily embedded in devices, tools, frameworks, application servers, and modern cloud services. With the direction of Java and the JakartaEE project (formerly JavaEE) in 2020, the current recommended version of Jetty for use depends upon the servlet api version, desired licensing, and package namespace as well as the intended Java version.
    Downloads: 16 This Week
    Last Update:
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  • 5
    Reactor Netty

    Reactor Netty

    TCP/HTTP/UDP/QUIC client/server with Reactor over Netty

    Reactor Netty offers non-blocking and backpressure-ready TCP/HTTP/UDP/QUIC clients & servers based on Netty framework. With Gradle from repo.spring.io or Maven Central repositories (stable releases only). Reactor is a fourth-generation reactive library, based on the Reactive Streams specification, for building non-blocking applications on the JVM. Reactor is fully non-blocking and provides efficient demand management. It directly interacts with Java's functional API, CompletableFuture, Stream, and Duration. Reactor offers two reactive and composable APIs, Flux [N] and Mono [0|1], which extensively implement Reactive Extensions. Well-suited for a microservices architecture, Reactor offers backpressure-ready network engines for HTTP (including Websockets), TCP, and UDP.
    Downloads: 12 This Week
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  • 6
    Takes

    Takes

    True object-oriented Java web framework without NULLs

    Takes is a true object-oriented and immutable Java8 web development framework. Pay attention that UTF-8 encoding is set on the command line. The entire framework relies on your default Java encoding, which is not necessarily UTF-8 by default. To be sure, always set it on the command line with file.encoding Java argument. We decided not to hard-code "UTF-8" in our code mostly because this would be against the entire idea of Java localization, according to which a user always should have a choice of encoding and language selection. We're using Charset.defaultCharset() everywhere in the code. Essential part of Bigger Example is Front interface. It's encapsulates server's back-end and used to start an instance, which will accept requests and return results. FtBasic, which is a basic front, implements that interface.
    Downloads: 3 This Week
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  • 7

    Feign

    Make writing Java http clients easier

    Feign is a Java to HTTP client binder that was built primarily to make writing Java http clients easier. Inspired by previous projects Retrofit, JAXRS-2.0 and WebSocket, Feign was designed to reduce the complexity that is often involved in binding the Denominator uniformly to HTTP APIs, no matter the ReSTfulness. Feign works by processing annotations into a templatized request, to which arguments are applied in a straightforward manner before output. While it may only support text-based APIs, it simplifies system aspects dramatically and makes it much easier to unit test your conversions. Feign makes use of great tools like Jersey and CXF for writing Java clients for ReST or SOAP services. It also lets you write your own code on top of http libraries, and connects your code to http APIs with little overhead.
    Downloads: 2 This Week
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  • 8
    NanoHTTPD

    NanoHTTPD

    Tiny, easily embeddable HTTP server in Java

    NanoHTTPD is a light-weight HTTP server designed for embedding in other applications, released under a Modified BSD licence. It is being developed at Github and uses Apache Maven for builds & unit testing. Nanolets are like servlets only that they have a extremely low profile. They offer an easy to use system for a more complex server application. We are currently in the process of stabilizing NanoHTTPD from the many pull requests and feature requests that were integrated over the last few months. The next release will come soon, and there will not be any more "intended" major changes before the next release. If you want to use the bleeding edge version, you can clone it from Github, or get it from sonatype.org (see "Maven dependencies / Living on the edge" below). Fully functional HTTP(s) server consisting of one (1) Java file, ready to be customized/inherited for your own project. Simple examples on how to customize NanoHTTPD.
    Downloads: 2 This Week
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  • 9
    LocalServer

    LocalServer

    LocalServer is a Web Server software for windows

    LocalServer is a Web Server software for Windows that allows you to make your Computer into a Web Server Locally in which there is the Apache Server, PHP, and MySQL Server, which has been summarized in a single container setup.exe. The advantages of this software is Free except you do not need to advance other similar software, which is installed by default on your computer, because the Apache Server and MySQL Server will be installed on LocalServer first time on a different port, the Apache server running on port 4008 and MySQL Server running on port 3308. The latest version has been on the Release of version 1.0.1 that is made on the date of 26-10-2012, which has been running stable on Windows devices with the addition of the mail server that Mercury mail. Hopefully LocalServer useful for you to use, and congratulations creative with LocalServer Thank you!
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    Downloads: 14 This Week
    Last Update:
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  • 10
    Milkman

    Milkman

    An extensible request/response workbench

    Milkman is heavily inspired by Postman. But I got sick of all those electron-based applications that need ages and loads of memory to start up. Therefore, this is a JavaFx-based workbench for crafting requests/responses. It is not limited to e.g. HTTP (or more specifically rest) requests. Due to nearly everything being a plugin, other things are possible, like database requests or GRPC, GraphQl, etc. Request-types (e.g. Http Request), request-aspects (e.g. Headers, Body, etc), editors for request aspects (e.g. table-based editors for headers), importers, whatever it is, you can extend it. The core application only handles Workspaces with Environments, Collections, Requests, and their aspects. Several plugins are provided already that extend the core application to be a replacement for postman. Crafting and Executing Http/Rest requests with json highlighting. Support Proxy-server configuration and SSE.
    Downloads: 1 This Week
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  • 11
    JETTY HAS MOVED TO ECLIPSE!!!! The latest releases of Jetty are hosted from http://eclipse.org/jetty. Jetty is an open-source project providing a HTTP server, HTTP client and javax.servlet container.
    Downloads: 5 This Week
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  • 12
    Java File Uploader
    Please update v 2.0 if you have downloaded before 16th Feb 2014! Simple java file uploader. The main goal to overcame 2GB browser limit. * Simple GUI * Upload unlimited file sizes from client to server via HTTP * Split uploading file to chunks * MD5 chunk verification on server. Final MD5 confirmation. * Http auth Adv: https://play.google.com/store/apps/details?id=org.vikulin.etherwallet
    Downloads: 6 This Week
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  • 13
    J2EP is a reverse proxy running on a J2EE engine. The proxy is written in java and was originally designed with Tomcat in mind, but any engine should work fine. A set of basic mapping rules are included but they can easily be extended to your own needs.
    Downloads: 10 This Week
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  • 14
    The goal of Simple is to bring the power of simplicity to the world of server side Java. The primary focus of the project is to provide a truly embeddable Java based HTTP engine capable of handling enormous loads. Simple provides a truly asynchronous service model, request completion is driven using an internal, transparent, monitoring system.
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    Downloads: 3 This Week
    Last Update:
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  • 15
    Library of Congress - Transfer Tools
    Tools developed by the Library of Congress and their partners in the National Digital Information Infrastructure and Preservation Program (NDIIPP) for the purpose of validation and transfer of data that conforms to the BagIt specification. This project has been moved to https://github.com/LibraryOfCongress
    Downloads: 2 This Week
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  • 16
    FOXY is a filtering web proxy. Originally designed to provide device-independent access to the World Wide Web, it may also be used for HTTP-filtering, extraction and reauthoring of existing web content or as security device against web based attacks.
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    Downloads: 4 This Week
    Last Update:
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  • 17
    Winstone is a Java servlet container (spec v2.5) that aims at being light, fast and reliable. It requires no configuration files, and is extremely simple to use.
    Downloads: 1 This Week
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  • 18
    A Java based file uploading program. Shows a progress bar for each file that is currently being uploaded. Also makes thumbnails for each image that is pending. Also supports drag n drop.
    Downloads: 2 This Week
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  • 19
    JDictd is a set of Java programs that implement the Dictionary Server Protocol (DICT) as specified in RFC 2229.
    Downloads: 3 This Week
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  • 20
    This aims to be a cross platform GUI control panel for XAMPP. The GUI provided with XAMPP works well only under Windows. This aims to provide a unified GUI on all OS's. Currently, KDE and GNOME are supported. Looking for help with Mac support.
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    Downloads: 3 This Week
    Last Update:
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  • 21
    JavaTunnel is a java, free, tunneling program. It can function in two ways: 1 It can open TCP/IP tunnel between two computers, using HTTP as a transport(not yet). 2 It can open a connection directly, witht he help of a SSL-HTTP proxy(avaible now).
    Downloads: 3 This Week
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  • 22
    CoffeeWebServer

    CoffeeWebServer

    An http 1.1 server written in Java

    NIO HTTP/1.1 Web Server with support for multi-part forms, custom servlets, cookies, sessions, SSL, gzip and deflate encodings, pipelining, and more! Written in 100% Java with core server reliance only on the base jdk library.
    Downloads: 1 This Week
    Last Update:
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  • 23
    This project is a graphical user-friendly Eclipse plugin providing non regression and stress tests of Web application servers. Test scripts are recorded from any internet browser thanks to a built-in HTTP proxy and can be fully edited in a dedicated GUI.
    Downloads: 1 This Week
    Last Update:
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  • 24
    JxFreeDB imports the FreeDB CD Library archives into an Infile Database. CDDB and fulltext queries (Artist,CD,Track) are implemented. For maximum portabillity, no Database Server has to be set up. It's based on JMBase and mysql-je.
    Downloads: 2 This Week
    Last Update:
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  • 25
    S60/Symbian port of Apache httpd and connectivity solution that provides HTTP access to a mobile phone from the Internet. For installation and other information, please follow the 'Project Web Site' link to the right, or Project->Website from the menu.
    Downloads: 2 This Week
    Last Update:
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