platform: jvm
3641 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| spring-projects/spring-kafka Spring for Apache Kafka (spring-kafka) is a Java library that applies familiar Spring abstractions to Apache Kafka-based messaging. It prov… | 99 | 2495 | stable |
| Netflix/archaius Archaius is a Java configuration management library that unifies static and dynamic configuration sources into a single API. It supports lo… | 89 | 2495 | stable |
| rails/solid_queue Solid Queue is a database-backed queuing backend for Rails Active Job, storing jobs in SQL databases like MySQL, PostgreSQL, or SQLite. It … | 98 | 2488 | active |
| trailblazer/reform Reform is a Ruby library providing form objects decoupled from models, with validations, coercion, and nested model setup. It is framework-… | 40 | 2488 | stable |
| chrisbanes/haze Haze is a Kotlin library providing hardware-accelerated background blur and glass visual effects for Compose Multiplatform and Jetpack Comp… | 84 | 2486 | active |
| Luoyacheng/legado-E 阅读Sigma (Reading Sigma) is an open-source Android e-book reader forked from Legado, offering customizable book sources, RSS subscriptions, … | 74 | 2485 | active |
| paascloud/paascloud-master A full-stack Spring Cloud + Vue microservices reference project simulating an e-commerce mall with a complete shopping flow and back-office… | 32 | 9862 | maintenance |
| ta4j/ta4j ta4j is an open-source Java library for technical analysis of financial time series. It provides a typed, composable model of bars, indicat… | 98 | 2482 | active |
| googlesamples/easypermissions EasyPermissions is a Java wrapper library that simplifies Android runtime (M+) system permission requests and handling in Activities and Fr… | 10 | 9856 | maintenance |
| atomashpolskiy/bt Bt is a full-featured BitTorrent library and client written in Java 8, supporting DHT, magnet links, peer exchange, message stream encrypti… | 63 | 2470 | active |
| seemoo-lab/AirGuard AirGuard is an Android app that protects users from unwanted tracking via AirTags and other Apple Find My accessories. It periodically scan… | 92 | 2468 | active |
| confluentinc/schema-registry Confluent Schema Registry is a Java-based serving layer that stores and retrieves Avro, JSON Schema, and Protobuf schemas via a RESTful API… | 77 | 2462 | active |
| azhon/AppUpdate A lightweight, highly customizable Android library for in-app version updates, handling update dialogs, APK background downloading, notific… | 59 | 2461 | active |
| wdsqjq/FengYunWeather FengYunWeather is an open-source Android weather app written in Kotlin using MVX architecture with coroutines, OkHttp, Room, and Coil. It p… | 41 | 2454 | active |
| moquette-io/moquette Moquette is a lightweight MQTT broker written in Java, compliant with MQTT 5 and MQTT 3, supporting QoS 0-2 and most MQTT 5 features. It is… | 86 | 2453 | active |
| apache/activemq Apache ActiveMQ is a high-performance, multi-protocol, Java-based open source message broker supporting JMS/Jakarta Messaging, AMQP, MQTT, … | 98 | 2451 | stable |
| typelevel/fs2 FS2 (Functional Streams for Scala) is a purely functional, effectful stream processing library for Scala built on Cats and Cats-Effect. It … | 82 | 2451 | active |
| Peergos/Peergos Peergos is a peer-to-peer, end-to-end encrypted global filesystem with fine-grained cryptographic access control, built on IPFS/libp2p with… | 77 | 2451 | active |
| open-telemetry/opentelemetry-java The official OpenTelemetry Java SDK, providing the Java implementation of the OpenTelemetry API for recording traces, metrics, and logs, pl… | 98 | 2447 | active |
| huanzi-qch/base-admin Base Admin is a simple, general-purpose Java admin management system built on Spring Boot, Spring Security, Spring Data JPA, Thymeleaf, and… | 73 | 2447 | active |
| lihengming/spring-boot-api-project-seed A Spring Boot and MyBatis based seed/boilerplate project for quickly building small-to-medium RESTful API projects in Java. It provides bes… | 23 | 9692 | maintenance |
| find-sec-bugs/find-sec-bugs Find Security Bugs is a SpotBugs plugin that performs static security analysis of Java bytecode, detecting 144 vulnerability patterns inclu… | 56 | 2437 | active |
| perwendel/spark Spark is a tiny, expressive web framework for Java 8+ (with a Kotlin DSL) inspired by Sinatra, letting you define routes with lambdas in a … | 32 | 9644 | maintenance |
| ByronNote/MinimalistWeather MinimalistWeather is a modern Android weather app built with Kotlin and Jetpack Compose following multi-module Clean Architecture. It provi… | 76 | 2435 | active |
| metarank/metarank Metarank is an open-source, low-code Learning-to-Rank service that personalizes search results, listings, and recommendations using real-ti… | 88 | 2434 | active |
| ksoichiro/Android-ObservableScrollView An Android library that lets developers observe scroll events on scrollable views like ListView and ScrollView. It provides callbacks for i… | 32 | 9608 | maintenance |
| bilibili/DanmakuFlameMaster DanmakuFlameMaster is Bilibili's open-source Android danmaku (bullet comment) engine that parses and renders scrolling comments over video.… | 23 | 9606 | maintenance |
| skydoves/TransformationLayout An Android library by skydoves that implements Material Design container transform animations, allowing Views, Activities, and Fragments to… | 51 | 2426 | stable |
| jhawthorn/discard Discard is a simple Ruby ActiveRecord mixin that adds soft-delete conventions by flagging records with a discarded_at timestamp instead of … | 72 | 2424 | stable |
| eclipse-jdtls/eclipse.jdt.ls Eclipse JDT Language Server is a Java implementation of the Language Server Protocol built on Eclipse JDT, LSP4J, M2Eclipse, and Buildship.… | 67 | 2424 | active |
| JakeWharton/RxBinding RxBinding provides RxJava binding APIs for Android UI widgets from the platform, AndroidX, and Material libraries. It converts UI events li… | 10 | 9569 | maintenance |
| DSAppTeam/PanelSwitchHelper An Android framework that smoothly animates transitions between the soft keyboard and custom function panels (emoji, options, etc.) in chat… | 76 | 2418 | stable |
| quantum-elixir/quantum-core Quantum is a cron-like job scheduler library for Elixir applications. It lets developers define recurring jobs using crontab syntax with ti… | 67 | 2416 | stable |
| igniterealtime/Smack Smack is an open-source, modular XMPP client library written in pure Java for Java SE JVMs and Android. It lets applications embed XMPP fun… | 77 | 2413 | stable |
| collectiveidea/awesome_nested_set A Ruby gem implementing the nested set pattern for ActiveRecord models, serving as a modern replacement for acts_as_nested_set and BetterNe… | 58 | 2411 | stable |
| Mycat MyCAT is an open-source database middleware written in Java that acts as a distributed MySQL cluster proxy, providing sharding, read/write … | 60 | 9514 | maintenance |
| metasfresh/metasfresh metasfresh is a free and open-source ERP system for small and mid-sized businesses, covering accounting, CRM, manufacturing, and supply cha… | 67 | 2407 | active |
| liaohuqiu/android-Ultra-Pull-To-Refresh An Android library providing a powerful pull-to-refresh container that can wrap any view (ListView, GridView, ScrollView, TextView, etc.) w… | 23 | 9504 | maintenance |
| apache/fineract Apache Fineract is an open-source, cloud-ready core banking platform written in Java, providing client management, loan and savings portfol… | 93 | 2405 | stable |
| openzipkin/brave Brave is a dependency-free Java distributed tracing library that instruments production services to gather timing data, propagate trace con… | 76 | 2405 | stable |
| nordicsemi/Android-BLE-Library An Android library by Nordic Semiconductor that simplifies working with Bluetooth Low Energy, handling connection, service discovery, bondi… | 73 | 2405 | stable |
| panpf/sketch Sketch is an image loading library designed for Compose Multiplatform and Android View, supporting loading images, GIFs, SVGs, and video th… | 97 | 2402 | active |
| PurpurMC/Purpur Purpur is a drop-in replacement for Paper Minecraft server software focused on deep configurability and fun gameplay features. It supports … | 76 | 2402 | active |
| umano/AndroidSlidingUpPanel An Android library that adds a draggable sliding up panel, popularized by Google Music and Google Maps, to Android applications. It provide… | 23 | 9448 | maintenance |
| hapifhir/hapi-fhir HAPI FHIR is a complete open-source Java implementation of the HL7 FHIR standard for healthcare data interoperability, providing APIs for b… | 97 | 2390 | stable |
| apache/sedona Apache Sedona is a cluster computing framework for processing large-scale geospatial data across Spark, Flink, and Snowflake. It provides S… | 90 | 2390 | active |
| RSocket RSocket Java is the reference Java implementation of the RSocket application protocol, a binary protocol for Reactive Streams semantics ove… | 26 | 2388 | stable |
| msasikanth/twine Twine is a modern, cross-platform RSS reader app built with Kotlin and Compose Multiplatform for Android, iOS, and desktop. It supports RDF… | 96 | 2387 | active |
| alexvasilkov/GestureViews An Android library providing ImageView and FrameLayout widgets with built-in gesture control (pan, zoom, fling, rotation, double tap) and s… | 80 | 2386 | stable |
| plutext/docx4j docx4j is an open-source (Apache v2) Java library for creating, editing, and saving Microsoft OpenXML packages, including Word docx, PowerP… | 77 | 2380 | active |
| apache/geode Apache Geode is a distributed in-memory data management platform (originally GemFire) providing real-time, consistent, low-latency access t… | 90 | 2378 | stable |
| pockethub/PocketHub PocketHub is the community-maintained Android client for GitHub, continuing the now-defunct official GitHub Android app. It lets users brow… | 23 | 9361 | maintenance |
| AnyChart/AnyChart-Android AnyChart Android is a data visualization library for creating interactive charts in Android apps, supporting API 19+ with dozens of built-i… | 65 | 2370 | active |
| LSPosed/LSPatch LSPatch is a non-root implementation of the LSPosed Xposed framework that integrates the Xposed API into target Android APKs by inserting d… | 10 | 9336 | maintenance |
| youlaitech/youlai-mall youlai-mall is an open-source full-stack e-commerce mall system built with Spring Boot 3, Spring Cloud & Alibaba 2022, Spring Authorization… | 42 | 2366 | active |
| xCollateral/VulkanMod VulkanMod is a Fabric mod for Minecraft that replaces the default OpenGL renderer with a custom Vulkan-based voxel rendering engine. It aim… | 85 | 2364 | active |
| apache/kyuubi Apache Kyuubi is a distributed, multi-tenant Thrift JDBC/ODBC gateway that provides serverless SQL access to data warehouses and lakehouses… | 94 | 2361 | stable |
| kazuhikoarase/qrcode-generator A QR Code generator library implemented in JavaScript, Java, and other languages, based on the JIS X 0510:1999 standard. It supports multip… | 65 | 2359 | stable |
| CCBlueX/LiquidBounce LiquidBounce is a free, open-source Minecraft hacked client (utility mod) built as a mixin-based injection client for the Fabric API, writt… | 99 | 2357 | active |
| kongzue/DialogX DialogX is an Android dialog box component library written in Java that makes it easy to create customizable dialogs, menus, and tip/wait i… | 89 | 2357 | active |
| gitblit-org/gitblit Gitblit is an open-source, pure Java Git server for managing, viewing, and serving Git repositories over GIT, HTTP, and SSH transports. It … | 34 | 2357 | active |
| Fate-Grand-Automata/FGA Fate/Grand Automata is a native Android app that automates battles and farming in Fate/Grand Order. It uses OpenCV for screen recognition, … | 99 | 2352 | active |
| modelmapper/modelmapper ModelMapper is a Java library that intelligently maps objects to each other using convention-based matching, automatically determining how … | 55 | 2352 | stable |
| element-hq/element-x-android Element X Android is the next-generation Matrix messenger client from Element, built on the Matrix Rust SDK with a Jetpack Compose UI. It i… | 94 | 2349 | active |
| oinone/oinone-pamirs Oinone Pamirs is the Java back-end of Oinone, an AI-powered low-code framework that is 100% metadata-driven and positions itself as infrast… | 63 | 2348 | active |
| smithy-lang/smithy Smithy is a protocol-agnostic interface definition language (IDL) and a set of tools for modeling services as collections of resources, ope… | 98 | 2345 | stable |
| kotlin-orm/ktorm Ktorm is a lightweight ORM framework for Kotlin built directly on pure JDBC, offering a strong-typed SQL DSL and entity sequence APIs. It r… | 80 | 2343 | active |
| magefree/mage XMage is a free, open-source, full rules-enforcement engine for playing Magic: The Gathering online against other players or AI opponents, … | 98 | 2342 | active |
| Vineflower/vineflower Vineflower is a modern Java and JVM bytecode decompiler forked from Fernflower, focused on producing accurate, readable output with support… | 84 | 2327 | active |
| Turbo1123/roubao Roubao is an open-source AI phone automation assistant for Android, built natively in Kotlin and powered by vision-language models. It runs… | 53 | 2325 | active |
| PatilShreyas/Foodium Foodium is a sample food blog Android application demonstrating modern Android development practices with Kotlin, Coroutines, Flow, Hilt, M… | 56 | 2324 | stable |
| gaul/s3proxy S3Proxy is a Java service that implements the Amazon S3 API and proxies requests to other storage backends such as Google Cloud Storage, Az… | 95 | 2322 | stable |
| developersu/ns-usbloader NS-USBloader is a cross-platform Java GUI application for uploading NSP and other files to Nintendo Switch installers like Awoo Installer a… | 75 | 2320 | active |
| Rudolf-Barbu/Ward Ward is a simple, minimalistic server monitoring dashboard built with Java and Spring Boot that displays principal system metrics like CPU,… | 23 | 2320 | active |
| airbnb/Showkase Showkase is an annotation-processor based Android library that organizes, discovers, searches, and visualizes Jetpack Compose UI elements s… | 63 | 2317 | active |
| HdrHistogram/HdrHistogram HdrHistogram is a Java library for recording and analyzing sampled data value counts across a configurable integer value range with configu… | 23 | 2316 | stable |
| geogebra/geogebra GeoGebra is a suite of interactive mathematics applications including graphing calculators, geometry tools, a 3D calculator, a scientific c… | 77 | 2315 | active |
| apache/ambari Apache Ambari is an open-source tool for provisioning, managing, and monitoring Apache Hadoop clusters. It provides a browser-based managem… | 79 | 2311 | active |
| jenkinsci/kubernetes-plugin A Jenkins plugin that runs dynamic build agents in a Kubernetes cluster by creating a Pod for each agent and tearing it down after each bui… | 98 | 2309 | active |
| didi/VirtualAPK VirtualAPK is a lightweight Android plugin framework by Didi that dynamically loads and runs APK files as if they were installed applicatio… | 10 | 9051 | maintenance |
| LuckPerms/LuckPerms LuckPerms is a permissions plugin for Minecraft servers that lets admins control player access by creating groups and assigning permissions… | 77 | 2306 | stable |
| valarchie/AgileBoot-Back-End AgileBoot is a full-stack rapid development scaffold based on Spring Boot (backend) and Vue 3 + TypeScript (frontend), rebuilt from Ruoyi w… | 44 | 2305 | active |
| vipshop/Saturn Saturn is a distributed, fault-tolerant job scheduling platform developed by VIP.com, supporting time-based jobs, parallel sharding, and we… | 46 | 2304 | active |
| a466350665/smart-sso Smart-SSO is a lightweight single sign-on (SSO) authentication and authorization center built on Spring Boot, implementing the OAuth2 autho… | 57 | 2303 | active |
| cashapp/zipline Zipline is a Kotlin library that lets Kotlin/JVM and Kotlin/Native programs load and run Kotlin/JS code by embedding the QuickJS JavaScript… | 87 | 2298 | active |
| twitter/algebird Algebird is a Scala library providing abstract algebra typeclasses (Monoids, Groups, Rings) for building composable aggregation systems. It… | 47 | 2295 | stable |
| REAndroid/APKEditor APKEditor is a Java command-line tool for editing Android APK resources without depending on aapt/aapt2. It can decode binary resources to … | 89 | 2291 | active |
| amaembo/streamex StreamEx is a Java library that enhances the Java 8 Stream API with additional stream classes like StreamEx, IntStreamEx, and EntryStream, … | 83 | 2290 | stable |
| API-Security/APIKit APIKit is a BurpSuite extension (Java plugin) that discovers, scans, and audits leaked API documentation such as GraphQL, OpenAPI/Swagger, … | 23 | 2286 | active |
| prometheus/client_java The official Prometheus instrumentation library for JVM applications, providing metric types (counters, gauges, histograms including native… | 95 | 2285 | stable |
| allenymt/PrivacySentry PrivacySentry is an Android privacy compliance toolkit combining a Gradle plugin with a runtime SDK, using annotations plus ASM bytecode in… | 49 | 2283 | active |
| EssentialsX/Essentials EssentialsX is a plugin suite for Minecraft servers running Spigot or Paper, offering over 160 commands covering teleportation, homes, warp… | 90 | 2281 | active |
| Kotlin/kmp-production-sample An official JetBrains open-source RSS reader app built with Kotlin Multiplatform, sharing data, domain, and state layers across Android, iO… | 66 | 2281 | active |
| kerwincui/FastBee FastBee is a lightweight, full-stack open-source IoT platform built on Spring Boot with a built-in Netty MQTT broker, device management, th… | 66 | 2275 | active |
| twitter/finatra Finatra is a lightweight Scala framework for building fast, testable HTTP and Thrift services on top of TwitterServer and Finagle. It provi… | 39 | 2272 | stable |
| siwangqishiq/ImageEditor-Android An open-source Android image editing control (Java) supporting stickers, filters, rotation, cropping, text overlays, doodles, skin smoothin… | 49 | 2271 | active |
| apache/rocketmq-spring Apache RocketMQ Spring Integration is a Spring Boot starter that lets Java developers quickly integrate RocketMQ messaging into Spring appl… | 84 | 2270 | active |
| apache/gobblin Apache Gobblin is a distributed data integration framework for ingesting, replicating, organizing, and managing lifecycle of data across st… | 66 | 2270 | stable |
| MarquezProject/marquez Marquez is an open-source metadata service for collecting, aggregating, and visualizing a data ecosystem's metadata. It serves as the refer… | 67 | 2268 | active |
| JetBrains/intellij-plugins JetBrains' official monorepo of open-source plugins bundled with IntelliJ IDEA Ultimate and other IntelliJ Platform-based IDEs. It contains… | 77 | 2266 | active |