Open Source Java Software - Page 51
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Java Software
Browse free open source Java Software and projects below. Use the toggles on the left to filter open source Java Software by OS, license, language, programming language, and project status.
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Lanproxy
Intranet penetration tool that proxies local area network computers
Lanproxy is an intranet penetration tool that proxies local area network personal computers and servers to the public network. It supports tcp traffic forwarding and any tcp upper layer protocol (access to intranet websites, local payment interface debugging, ssh access, remote desktop, http proxy) , https proxy, socks5 proxy...). Penetration basic functions, same as the open source version, high performance, can support tens of thousands of penetration connections at the same time. Support http/https/socks5 multiple modes Use the client network proxy to surf the Internet, and easily access the company network at home. Custom domain name ssl certificate, you can also enable automatic application and renewal of ssl certificate for your bound domain name without manual intervention. -
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Lightweight-Stream-API
Stream API from Java 8 rewritten on iterators for Java 7 and below
Stream API from Java 8 rewritten on iterators for Java 7 and below. -
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Litho
A declarative framework for building efficient UIs on Android
Litho uses a declarative API to define UI components. You simply describe the layout for your UI based on a set of immutable inputs and the framework takes care of the rest. With code generation, Litho can perform optimisations for your UI under the hood, while keeping your code simple and easy to maintain. Litho can measure and layout your UI ahead of time without blocking the UI thread. By decoupling its layout system from the traditional Android View system, Litho can drop the UI thread constraint imposed by Android. Litho uses Yoga for layout and automatically reduces the number of ViewGroups that your UI contains. This, in addition to Litho's text optimizations, allows for much smaller view hierarchies and improves both memory and scroll performance. -
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Luck Perms
A permissions plugin for Minecraft servers
LuckPerms is a widely used open-source permissions management plugin for Minecraft servers that allows administrators to control what actions players can perform within the game. The plugin provides a flexible system for creating user groups, assigning permissions, and defining roles that determine access to commands, features, and gameplay mechanics. Designed for performance and scalability, LuckPerms can handle large multiplayer servers and complex permission hierarchies while maintaining fast response times. Administrators can configure permissions using command-line tools, configuration files, or a web-based editor that simplifies management of large permission systems. The plugin also supports multiple storage backends such as local files, SQL databases, and other data systems, allowing server networks to synchronize permissions across multiple servers. -
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ML Manager 1.X
A modern, easy and customizable app manager for Android with Material
A modern, easy and customizable APK extractor & app manager for Android that allows you to extract any installed and system app, mark them as favorite, share .apk files easily and much more. -
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MMKV for Android
An efficient, small mobile key-value storage framework
MMKV for Android is an efficient, small mobile key-value storage framework developed by WeChat. Works on Android, iOS, macOS, Windows, and POSIX. Efficient. MMKV uses mmap to keep memory synced with file, and protobuf to encode/decode values, making the most of Android to achieve best performance. MMKV supports concurrent read-read and read-write access between processes. Easy-to-use. You can use MMKV as you go. All changes are saved immediately, no sync, no apply calls needed. MMKV contains process locks, encode/decode helpers and mmap logics and nothing more. It's really tidy. MMKV adds about 50K per architecture on App size, and much less when zipped (apk). MMKV is published under the BSD 3-Clause license. Starting from v1.2.8, MMKV has been migrated to Maven Central. Older versions (<= v1.2.7) are still available on JCenter. -
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Mall
Java-based e-commerce system with backend and frontend modules
The mall project is a comprehensive, full-featured e-commerce platform developed in Java, offering modules for product management, orders, users, promotions, and administration. Built with Spring Boot, MyBatis, and Vue.js, it provides a complete solution for developers looking to build or learn from a production-ready online shopping platform. It supports high scalability and clean architectural design suitable for enterprise-grade applications. -
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MaterialEditText
EditText in Material Design
AppCompat v21 makes it easy to use Material Design EditText in our apps, but it's so limited. If you've tried that, you know what I mean. So I wrote MaterialEditText, the EditText in Material Design, with more features that Google Material Design Spec has introduced. Base color will be used as bottom line color, text color (reset alpha to 87%) and hint text color (reset alpha to 26%). You can use app:met_baseColor in xml or setBaseColor() in java code. If you haven't set a base color, black will be used. Primary color will be used as the activated bottom line color, highlight floating label color, and singleline ellipsis color. You can use app:met_primaryColor in xml or setPrimaryColor() in java code. If you haven't set a primary color, the base color will be used. Just use com.rengwuxian.materialedittext.MaterialEditText instead of EditText in your layout xml. MaterialEditText has directly inherited EditText, so you don't have to change your java code. -
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MaterialRatingBar
Material Design RatingBar with better appearance
Material Design RatingBar with better appearance, compatible with Android 3.0+. -
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MaxKey
MaxKey SSO ,Leading-Edge IAM-IDaas(Identity and Access Management)
Maxkey Single Sign On System, which means the Maximum key, Leading-Edge IAM/IDaas Identity and Access Management product, supports OAuth 2.x/OpenID Connect, SAML 2.0, JWT, CAS, SCIM, and other standard protocols, and provide Secure, Standard and Open Identity management (IDM), Access management (AM), Single Sign On (SSO), RBAC permission management and Resource management. MaxKey focuses on performance, security, and ease of use in enterprise scenarios, is widely used in industries such as healthcare, finance, government, and manufacturing. -
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Megalodon
Pink modification of the official Mastodon for Android app
Megalodon is a modified version of the Mastodon official application for Android with many features missing from the official app, such as the Timeline federation, posting unlisted posts and the ability to view image descriptions. -
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Metrics
Capturing JVM and application-level metrics
Metrics is a Java library which gives you unparalleled insight into what your code does in production. Metrics provides a powerful toolkit of ways to measure the behavior of critical components in your production environment. With modules for common libraries like Jetty, Logback, Log4j, Apache HttpClient, Ehcache, JDBI, Jersey and reporting backends like Graphite, Metrics provides you with full-stack visibility. The central library for Metrics is metrics-core, which provides some basic functionality. The starting point for Metrics is the MetricRegistry class, which is a collection of all the metrics for your application (or a subset of your application). Each metric is associated with a MetricRegistry, and has a unique name within that registry. A gauge is the simplest metric type. It just returns a value. If, for example, your application has a value which is maintained by a third-party library, you can easily expose it by registering a Gauge instance which returns that value. -
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MinecraftForge
Modifications to the Minecraft base files to assist in compatibility
MinecraftForge is a widely used open-source modding API and development platform for Minecraft that enables developers to create, install, and manage game modifications in a standardized way. It provides a framework that extends the core functionality of Minecraft while maintaining compatibility between different mods and versions of the game. Forge simplifies the modding process by offering tools, hooks, and APIs that allow developers to modify game behavior without directly altering the base game code. This modular approach allows multiple mods to coexist within the same installation while minimizing conflicts. MinecraftForge also includes tools for loading mods, managing dependencies, and maintaining compatibility across game updates. Over time it has become the primary modding ecosystem for Minecraft Java Edition, supporting thousands of community-created modifications ranging from gameplay enhancements to entirely new game mechanics. -
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Mockito
Most popular Mocking framework for unit tests written in Java
Mockito downloads and instructions for setting up Maven, Gradle and other build systems are available from the Central Repository and Bintray. Mockito 3.x requires Java 8, but otherwise doesn’t introduce any breaking changes compared to the 2.x series. Mockito 2.25.0 had an important feature added for anyone using mockito-inline. In particular anyone using Kotlin (which demands using mockito-inline) and PowerMock (which exacerbates the problem even more) will want to add this to all of their test classes to avoid a large memory leak. Fancy getting world-wide visibility and building up an eternal fame of an OSS contributor? Use the latest version! Hack and experiment. Speak up at the mailing list. Mockito is a mocking framework that tastes really good. It lets you write beautiful tests with a clean & simple API. Mockito doesn’t give you hangover because the tests are very readable and they produce clean verification errors. -
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Muon SSH Terminal/SFTP client
Graphical SFTP client and terminal emulator with helpful utilities
Easy and fun way to work with remote servers over SSH. This project is being renamed as previous name "Snowflake" is confusing since there is already a popular product with the same name. Muon is a graphical SSH client. It has an enhanced SFTP file browser, SSH terminal emulator, remote resource/process manager, server disk space analyzer, remote text editor, huge remote log viewer, and lots of other helpful tools, which makes it easy to work with remote servers. Muon provides functionality similar to web-based control panels but, it works over SSH from the local computer, hence no installation is required on the server. It runs on Linux and Windows. Muon has been tested with several Linux and UNIX servers, like Ubuntu server, CentOS, RHEL, OpenSUSE, FreeBSD, OpenBSD, NetBSD, and HP-UX. The application is targeted mainly towards web/backend developers who often deploy/debug their code on remote servers and not overly fond of complex terminal-based commands. -
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MyBatis
MyBatis SQL mapper framework for Java
MyBatis is a first class persistence framework with support for custom SQL, stored procedures and advanced mappings. MyBatis eliminates almost all of the JDBC code and manual setting of parameters and retrieval of results. MyBatis can use simple XML or Annotations for configuration and map primitives, Map interfaces and Java POJOs (Plain Old Java Objects) to database records. Every MyBatis application centers around an instance of SqlSessionFactory. A SqlSessionFactory instance can be acquired by using the SqlSessionFactoryBuilder. SqlSessionFactoryBuilder can build a SqlSessionFactory instance from an XML configuration file, or from a custom prepared instance of the Configuration class. Building a SqlSessionFactory instance from an XML file is very simple. It is recommended that you use a classpath resource for this configuration, but you could use any InputStream instance, including one created from a literal file path or a file:// URL. -
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MyBatis integration with Spring Boot
MyBatis integration with Spring Boot
MyBatis Spring-Boot-Starter will help you to use MyBatis with Spring Boot. -
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MyPerf4J
High performance Java APM. Powered by ASM
MyPerf4J is an open source Java performance monitoring and profiling tool designed to help developers and operations teams analyze application behavior with minimal overhead. It focuses on providing lightweight yet high-precision metrics collection for method execution times, throughput, and latency, making it particularly useful in high-performance production environments. The project emphasizes low performance impact by using efficient time recording and aggregation techniques, allowing continuous monitoring without significantly affecting application speed. MyPerf4J supports both real-time monitoring and offline analysis through log aggregation and visualization tools. It integrates well with common Java ecosystems and can be embedded into existing services with relatively little configuration effort. Overall, the project targets teams that need deep insight into Java application performance while maintaining production stability and observability discipline. -
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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. -
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Netflix Maestro
Netflix’s Workflow Orchestrator
Maestro is a large-scale workflow orchestration platform originally developed by Netflix to coordinate complex data processing and machine learning workflows across distributed systems. The system acts as a general-purpose workflow orchestrator that manages the execution, scheduling, monitoring, and recovery of large pipelines used for analytics and AI operations. It was designed to support the demanding internal infrastructure of Netflix, where thousands of workflows must process massive volumes of data reliably and efficiently every day. The platform enables engineers and data scientists to define workflows using structured configuration files and execute tasks across diverse compute environments, including scripts, containers, and notebook environments. Maestro provides built-in mechanisms for retry logic, task scheduling, dependency management, and error handling, which are essential when orchestrating production-scale pipelines. -
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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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NettyGameServer
A mobile game distributed server implemented using netty4.X
A mobile game distributed server implemented using netty4.X, supports tcp, udp, http, websocket links, uses protobuf custom protocol stack for network communication, supports rpc remote calls, uses mybatis3 to support db storage sub-database sub-table, supports asynchronous mysql Storage, update the reids cache synchronously when the db is saved. Use the ExcelToCode project to generate java classes and json data dictionaries from excel data, and DictService directly reads json to reduce part of the data dictionary code. Use the game-executor project to increase the asynchronous event global service in the game, support event sharding, and balance asynchronous execution event logic. Use netty's proxy mode to increase gateway proxy forwarding. -
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Nextcloud Notes for Android
Android client for Nextcloud Notes app
Nextcloud Notes Android is the official mobile client that enables users to create, edit, and manage notes stored on a Nextcloud server, making it possible to access personal notes securely from anywhere. Designed to integrate with Nextcloud’s server-side Notes app, this Android application supports multiple accounts, allowing users to operate against different servers or accounts within a single interface. It provides a full suite of note management tools including creation, editing, search, sharing, and deletion of notes, along with support for rendering markdown content so that formatted text and lists are displayed accurately. Additional conveniences like toggling checkboxes in view mode, marking favorites, bulk delete operations, and widgets for home screens make it a versatile companion for productivity on the go. The app also embraces modern UI features like dark mode and localized language support, enhancing usability across devices and regions. -
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Nitrite Database
NoSQL embedded document store for Java
Nitrite is an embedded NoSQL database for Java applications, offering lightweight document storage with indexing and query capabilities. -
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Nukkit
Nuclear-Powered Minecraft: Bedrock Edition Server Software
Nukkit is nuclear-powered server software for Minecraft: Pocket Edition. It has a few key advantages over other server software.
