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
    Leader badge
    Downloads: 52,779 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: 473 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: 72 This Week
    Last Update:
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  • 4
    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: 4 This Week
    Last Update:
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  • 5
    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: 30 This Week
    Last Update:
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  • 6

    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: 3 This Week
    Last Update:
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  • 7
    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: 3 This Week
    Last Update:
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  • 8
    Proxyee

    Proxyee

    HTTP proxy server,support HTTPS & websocket

    Proxyee is a JAVA-written HTTP proxy server library that supports HTTP, HTTPS, and WebSocket protocols, and supports MITM (Man-in-the-middle), which can capture and tamper with HTTP, and HTTPS packets. The CA certificate (src/resources/ca.crt) from the project needs to be imported to a trusted root certificate authority. The CA certificate (src/resources/ca.crt) from the project needs to be imported to a trusted root certificate authority. You can use the CertDownIntercept interceptor to enable the web certificate download feature.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 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: 9 This Week
    Last Update:
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  • 10
    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: 3 This Week
    Last Update:
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  • 11
    WWW XML+XSLT Content management system on J2SE with Tomcat and SQL-92 compatiblity database (like free MySQL or Oracle). Supports many sites, many groups, many users. XML-definition of content types, security system. Created with Apache Avalon.
    Downloads: 3 This Week
    Last Update:
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  • 12
    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: 2 This Week
    Last Update:
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  • 13
    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.
    Leader badge
    Downloads: 2 This Week
    Last Update:
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  • 14
    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: 4 This Week
    Last Update:
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  • 15
    The Staged Event-Driven Architecture (SEDA) is a framework for building scalable, high-performance Internet services that are capable of sustaining enormous variations in load.
    Downloads: 3 This Week
    Last Update:
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  • 16
    TJWS is an Open Source HTTP Server and Servlet container written in 100% Java. It's designed to be a light weight, high performing, secure, embeddable, extensible and flexible. Very small footprinted (~100K), CGI, J2EE/JSP compatible. Servlet spec 3.1
    Downloads: 3 This Week
    Last Update:
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  • 17
    Web Scanner is a command-line program that is designed to scans web servers to find default and potentially vulnerable web pages. 2.0 - Java, 1.3 - Perl Web scanner supports both HTTP and HTTPS protocols and can be configured to use custom data files.
    Downloads: 3 This Week
    Last Update:
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  • 18
    DAVInspector is a WebDAV debugging and test tool.
    Downloads: 2 This Week
    Last Update:
    See Project
  • 19
    TINY HTTP Daemon 0.01 - A flexible tiny web server
    Downloads: 2 This Week
    Last Update:
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  • 20
    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.
    Leader badge
    Downloads: 1 This Week
    Last Update:
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  • 21
    jo! is a pure Java webserver that implements the Servlet API 2.2, JSP 1.1, and HTTP/1.1. Support for 2.3/1.2 are currently in beta stage.
    Downloads: 1 This Week
    Last Update:
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  • 22
    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.
    Downloads: 1 This Week
    Last Update:
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  • 23

    Java HTTP REST interface

    Base for HTTP-REST Java application

    Simplified multithreaded Java HTTP server able to interpret GET/POST requests. Example dummy app included. It uses Apache2 as a proxy for AJAX calls and jQuery code as a client. ------- Requirements: For the Java HTTP server: - J2SE (SDK for compilation) For the exampe web app: - Apache2 with mod_rewrite and mod_proxy Client-side for the web app: - www browser supporting JS with jQuery --- Setup: - run Server.class from Java server files (java Server) in a terminal/console - unpack example app files under/within your apache2 document root file structure - open index.html (with a www browser, from a www server) - observe terminal output
    Downloads: 1 This Week
    Last Update:
    See Project
  • 24
    Joseki: The Jena RDF Server. Joseki is a server for publishing RDF models on the web. Models have URLs and they can be access by HTTP GET. Joseki is part of the Jena RDF framework. Jena has moved to Apache: http://jena.apache.org/ Joseki is replaced by Apache Jena Fuseki.
    Downloads: 1 This Week
    Last Update:
    See Project
  • 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: 1 This Week
    Last Update:
    See Project
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