Open Source Java Software - Page 41
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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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Fully Managed MySQL, PostgreSQL, and SQL ServerCloud SQL handles your database ops end to end, so you can focus on your app.
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Ship Agents FasterGemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
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S3Proxy
S3Proxy implements the S3 API and proxies requests
S3Proxy implements the S3 API and proxies requests, enabling several use cases. Translation from S3 to Backblaze B2, EMC Atmos, Google Cloud, Microsoft Azure, and OpenStack Swift. Testing without Amazon by using the local filesystem. Extension via middleware. Embedding into Java applications. Docker Hub hosts a Docker image and has instructions on how to run it. Users can download releases from GitHub. Developers can build the project by running mvn package which produces a binary at target/s3proxy. S3Proxy requires Java 8 or newer to run. Configure S3Proxy via a properties file. An example using the local file system as the storage backend with anonymous access. S3Proxy can be configured to assign buckets to different backends with the same credentials. In addition to the explicit names, glob syntax can be used to configure many buckets for a given backend. -
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Schema Spy
SchemaSpy code home
This is a new code repository for SchemaSpy tool initially created and maintained by John Currier. I personally believe that work on SchemaSpy should be continued, and a lot of still existing issues should be resolved. Last released version of the SchemaSpy was in 2010, and I have a plan to change this. Process of installation is very simple because SchemaSpy is only one Java .jar application. You can learn more read the installation doc. When you environment will be ready, and you can start using SchemaSpy you can read more about the configuration. Browse some sample pages generated by SchemaSpy. Note that this was run against an extremely limited schema so it doesn't show the full power of the tool. -
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SeriesGuide
Track your favorite TV shows and movies on Android devices
SeriesGuide highlights shows with new episodes and is backed by the huge TV show catalog of TMDb. It can display movies currently in cinemas or released digitally and offers access to the huge movie catalog of TMDb. It also integrates with Trakt to sync your watched episodes and movies. Connect your Trakt account or sign into SeriesGuide Cloud to sync your watched episodes and movies. Hit the share button to post a link to an awesome episode or movie to any Android app, including WhatsApp, Signal, Facebook and Twitter. Visual indicators make it easy to see remaining episodes and to spot unseen episodes. The statistics tool sums how many hours you have spent watching (and still have to). -
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ShapeOfView
Give a custom shape to any android view, Material Design 2 ready
ShapeOfView is an Android library that lets developers render arbitrary shapes — not just rectangles — for any view. Rather than sticking to Android’s default rectangular layout for views, ShapeOfView allows you to “clip” or mask a view into a variety of shapes (circle, triangle, star, polygon, custom path, etc.), and optionally include shadows (when using elevation) — making it possible to build UI components that diverge from the standard boxy look. It supports both predefined shapes (round rects, circles, arcs, bubbles, triangles, stars, polygons, diagonals, cut corners) and fully custom shapes via clipping paths or drawables. Moreover, shapes can be animated (for example, corners gradually changing, or shape morphing), giving developers creative freedom for dynamic UI effects. This library helps in building expressive, modern UI designs aligned with modern design languages (e.g. Material 2 / custom). -
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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Shopizer
Shopizer java e-commerce software
Create online stores, marketplaces, product listings, B2B applications, transactional portals and much more using Shopizer's secure, fast and reliable open-source e-commerce software. Shopizer is built by a dedicated, agile community of Java and e-commerce experts who are motivated by the desire to create great software that is easily adaptable to the demanding practices and changing trends of e-commerce. Shopizer's team is developing for developers first; we are working in a continuous delivery environment, which allows us to put out new features and ideas at a faster pace. Our technology stack is based on well-known technology and frameworks including Java and Angular. -
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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. Although cryptographic operations and message confidentiality are managed by the client side using the Signal Protocol, the server ensures message routing, user registration, and group updates without having access to the decrypted contents. Its codebase is public to ensure transparency and auditability for a security-focused community willing to inspect how message metadata and delivery mechanisms are implemented. -
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Smile
Statistical machine intelligence and learning engine
Smile is a fast and comprehensive machine learning engine. With advanced data structures and algorithms, Smile delivers the state-of-art performance. Compared to this third-party benchmark, Smile outperforms R, Python, Spark, H2O, xgboost significantly. Smile is a couple of times faster than the closest competitor. The memory usage is also very efficient. If we can train advanced machine learning models on a PC, why buy a cluster? Write applications quickly in Java, Scala, or any JVM languages. Data scientists and developers can speak the same language now! Smile provides hundreds advanced algorithms with clean interface. Scala API also offers high-level operators that make it easy to build machine learning apps. And you can use it interactively from the shell, embedded in Scala. The most complete machine learning engine. Smile covers every aspect of machine learning. -
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SoloPi
SoloPi Automated Testing Tool
SoloPi is a wireless, non-intrusive Android automation tool. The public beta version has three main functions: recording and playback, performance testing, and multiple controls on one machine, which can save valuable time for test developers. SoloPi has the ability to record operations. Users only need to execute the use case steps through SoloPi, and SoloPi can record the user's operations and support playback on various devices, all of which can be done independently on the mobile phone. See the recording and playback section for details. SoloPi can record various indicators of the application under test. You can observe the real-time updated data in the floating window, and you can also record the performance data and view the chart after the recording. , memory and network environment to limit, reproduce the performance of the application in the scene of poor performance and poor network environment. -
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SpongeForge
A Forge mod that implements SpongeAPI
A Forge implementation of the Sponge API. SpongeForge uses Gradle as its build system. The repo includes the Gradle wrapper that will automatically download the correct Gradle version. Local installations of Gradle may work but are untested. To execute the Gradle wrapper, run the ./gradlew script on Unix systems or only gradlew on Windows systems. In order to build SpongeForge you simply need to run the gradlew command. On Windows systems you should run gradlew instead of ./gradlew to invoke the Gradle wrapper. SpongeForge is the implementation of the Sponge API on the Minecraft Forge platform. Recommended for running plugins together with Forge mods. The purpose of the Sponge project is to create a plugin development framework for Minecraft: Java Edition. Sponge is being created by a global community, and its open-source nature means anyone can participate. -
Cut Data Warehouse Costs by 54%BigQuery delivers 54% lower TCO with exabyte scale and flexible pricing. Free migration tools handle the SQL translation automatically.
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SpringAll
Step by step, learn Spring Boot, Spring Boot & Shiro, Spring Batch
SpringAll is a comprehensive learning project that gathers a wide range of Spring, Spring Boot, and Spring Cloud demos in one repository. It is designed for developers who want to deepen their understanding of the Spring ecosystem by exploring concrete, runnable code samples. Each module focuses on a specific technology or integration—covering web applications, ORM frameworks, microservices, caching, messaging, security, distributed systems, and monitoring. The repository emphasizes both theory and practice, combining conceptual explanations with working examples so learners can bridge the gap between reading documentation and building real-world applications. It also includes advanced topics such as distributed locks with Zookeeper, API documentation with Swagger, session sharing, security with RBAC, and microservice communication patterns. The project continues to evolve with community contributions, making it a useful reference for both beginners and experienced Java developers. -
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Strimzi
Apache Kafka® running on Kubernetes
Strimzi provides a way to run an Apache Kafka cluster on Kubernetes in various deployment configurations. Strimzi provides a way to run an Apache Kafka cluster on Kubernetes in various deployment configurations. For development, it’s easy to set up a cluster in Minikube in a few minutes. For production you can tailor the cluster to your needs, using features such as rack awareness to spread brokers across availability zones, and Kubernetes taints and tolerations to run Kafka on dedicated nodes. You can expose Kafka outside Kubernetes using NodePort, Load balancer, Ingress and OpenShift Routes, depending on your needs, and these are easily secured using TLS. The Kube-native management of Kafka is not limited to the broker. You can also manage Kafka topics, users, Kafka MirrorMaker and Kafka Connect using Custom Resources. This means you can use your familiar Kubernetes processes and tooling to manage complete Kafka applications. -
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Swagger2Markup
Swagger to AsciiDoc or Markdown converter
The primary goal of this project is to simplify the generation of up-to-date RESTful API documentation by combining documentation that’s been hand-written with auto-generated API documentation produced by Swagger. The result is intended to be an up-to-date, easy-to-read, on- and offline user guide, comparable to GitHub’s API documentation. The output of Swagger2Markup can be used as an alternative to swagger-UI and can be served as static content. Swagger2Markup converts a Swagger JSON or YAML file into several AsciiDoc or GitHub Flavored Markdown documents which can be combined with hand-written documentation. The Swagger source file can be located locally or remotely via HTTP. Swagger2Markup supports the Swagger 1.2 and 2.0 specifications. Internally it uses the official swagger-parser and my markup-document-builder. You can use Swagger2Markup to convert your contract-first Swagger YAML file into a human-readable format. -
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Teedy
Lightweight document management system
Teedy is a lightweight document management system packed with all the features you can expect from big expensive solutions but still easy to use. A modern interface to keep your important documents in one place and your business operations clear. Do not spend time using the tool, just upload your documents and you will find them easily when needed. Precise user permissions, encryption and datacenters in France will make sure only the right people can see the right documents. As a content-oriented document management system, the user interface is not cluttered with buttons and menus and works both on desktop and mobile. Document searching has never been easier thanks to the powerful full-text search engine in Teddy. You can search in images (embedded OCR), DOCX, ODT, TXT, PDF, and more. Verify or validate your documents with people of your organization using workflows. -
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To Be Top Javaer
To Be Top Javaer - The Path to Becoming a Java Engineer
toBeTopJavaer is an open source knowledge base and learning roadmap designed to help developers become expert Java engineers. Created and maintained by Hollis, the project compiles a wide range of Java fundamentals, advanced features, and ecosystem knowledge into one structured guide. It covers core Java concepts, JVM internals, multithreading, frameworks, databases, system design, and interview preparation. The repository is presented in a structured, progressive format so learners can follow along step by step while also diving into specific areas of interest. Its goal is to help developers not only strengthen their Java skills but also broaden their understanding of software engineering practices, distributed systems, and career development. With practical notes, explanations, and curated resources, it serves as both a study plan for self-learners and a long-term reference for working developers. -
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Transcoder
Hardware-accelerated video transcoding using Android MediaCodec APIs
Transcoder by DeepMedia is an AI-powered video-to-video speech translation engine that enables fully automated multilingual dubbing. Unlike traditional speech translation systems that rely on multi-stage pipelines, Transcoder directly translates one speaker’s video into another language while preserving facial expressions, lip-sync, and vocal identity. Designed for real-time use and production-grade pipelines, Transcoder combines advanced deep learning models with GPU acceleration to deliver high-quality translations across languages. It’s built with researchers and developers in mind, offering tools for testing, evaluating, and deploying AI-driven media localization. -
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WorldWind Java
For building cross-platform 3D geospatial apps in Java
WorldWind Java is an open-source virtual globe SDK developed by NASA that allows developers to embed a 3D Earth visualization into Java applications. It renders detailed global terrain and satellite imagery, and supports real-time geographic data overlays, making it ideal for applications in geospatial analysis, education, simulation, and scientific visualization. With its flexible API and plugin system, WorldWind Java is a powerful platform for building interactive geospatial applications that need accurate globe rendering and data integration. -
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XMage
Magic Another Game Engine
XMage allows you to play Magic against one or more online players or computer opponents. It includes full rules enforcement for over 20 000 unique cards and more than 50.000 reprints from different editions. You can also find custom sets like Star Wars. All regular sets have nearly all implemented cards. It supports single matches and tournaments with dozens game modes like duel, multiplayer, standard, modern, commander, pauper, oathbreaker, historic, freeform and much more. Local server supports a special test mode for testing combos and other game situations with pre-defined conditions. There are public servers where you can play XMage against other players. You can also host your own server to play against the AI and/or your friends. Supports special formats like Commander (up to 10 players), Oathbreaker, Cube, Tiny Leaders, Super Standard, Historic Standard and more. -
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XXPermissions
Android Permissions Framework, Adapt to Android 16
XXPermissions is an Android runtime permission management framework designed to simplify how developers request and handle permissions across different Android versions. The project focuses on providing a unified API that abstracts the complexity introduced by evolving Android permission models, including newer platform requirements. It aims to improve developer productivity by reducing repetitive permission-handling code and minimizing compatibility issues. The library emphasizes adaptability to modern Android releases, with ongoing updates to support newer SDK levels and manufacturer-specific behaviors. It also provides structured callbacks and utilities that help developers track granted and denied permissions more clearly. Overall, XXPermissions is intended to be a practical drop-in solution for Android teams that need reliable, version-aware permission workflows in production apps. -
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ZXing Android Embedded
Barcode scanner library for Android, based on the ZXing decoder
ZXing Android Embedded is a barcode scanning library for Android, using ZXing for decoding. The project is loosely based on the ZXing Android Barcode Scanner application but is not affiliated with the official ZXing project. By default, only SDK 24+ will work, even though the library specifies 19 as the minimum version. For SDK versions 19+, one of the changes changes below are required. Some older SDK versions below 19 may work, but this is not tested or supported. While this is not the primary purpose of this library, it does include basic support for generating some barcode types. To change the orientation, specify the orientation in your AndroidManifest.xml and let the ManifestMerger to update the Activity's definition. The camera permission is required for barcode scanning to function. It is automatically included as part of the library. On Android 6 it is requested at runtime when the barcode scanner is first opened. -
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Zeebe
Distributed Workflow Engine for Microservices Orchestration
Automate processes at scale with unprecedented performance and resilience. Zeebe is the workflow and decision engine that powers Camunda Platform 8. Zeebe’s cloud-native design provides the performance, resilience, and security enterprises need to future-proof their process orchestration efforts. Zeebe distributes data across all brokers in a cluster with storage directly on the server filesystem. If one broker goes down, another can replace it with no data loss. This pre-configured replication mechanism ensures that Camunda Platform 8 can recover from machine or software failure with no human interaction, no data loss and minimal downtime. -
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jOOQ
jOOQ is the best way to write SQL in Java
jOOQ generates Java code from your database and lets you build type-safe SQL queries through its fluent API. jOOQ is an internal DSL and source code generator, modeling the SQL language as a type-safe Java API to help you write better SQL. -
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photon
An open source geocoder for openstreetmap data
photon is an open-source geocoder built for OpenStreetMap data. It is based on elastic search - an efficient, powerful and highly scalable search platform. photon was started by komoot and provides search-as-you-type and multilingual support. Find our public API and demo on photon.komoot.io. Until October 2020 the API was available under photon.komoot.de. Please update your apps accordingly. -
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pmd
An extensible multilanguage static code analyzer
PMD is a source code analyzer. It finds common programming flaws like unused variables, empty catch blocks, unnecessary object creation, and so forth. It supports Java, JavaScript, Salesforce.com Apex and Visualforce, PLSQL, Apache Velocity, XML, and XSL. Additionally, it includes CPD, the copy-paste-detector. CPD finds duplicated code in Java, C, C++, C#, Groovy, PHP, Ruby, Fortran, JavaScript, PLSQL, Apache Velocity, Scala, Objective C, Matlab, Python, Go, Swift and Salesforce.com Apex, and Visualforce. It supports Java, JavaScript, Salesforce.com Apex and Visualforce, Modelica, PLSQL, Apache Velocity, XML, XSL, and Scala. Additionally, it includes CPD, the copy-paste-detector. CPD finds duplicated code in C/C++, C#, Dart, Fortran, Go, Groovy, Java, JavaScript, JSP, Kotlin, Lua, Matlab, Modelica, Objective-C, Perl, PHP, PLSQL, Python, Ruby, Salesforce.com Apex, Scala, Swift, Visualforce and XML. -
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red5-server
Red5 Server core
Red5 is an Open Source Flash Server written in Java that supports streaming Video (FLV, F4V, MP4, 3GP). Streaming Audio (MP3, F4A, M4A, AAC) Recording Client Streams (FLV and AVC+AAC in FLV container) Shared objects, live stream publishing, remoting, and protocols: RTMP, RTMPT, RTMPS, and RTMPE. -
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rtmp-rtsp-stream-client-java
Library to stream in rtmp and rtsp for Android. All code in Java
Library for streaming in RTMP and RTSP. All code in Java.
