platform: jvm
3641 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| dimitri/pgloader pgloader is a data loading and migration tool for PostgreSQL built on the COPY command. It migrates entire databases from MySQL, SQLite, MS… | 82 | 6504 | active |
| ACRA/acra ACRA is an open-source Android library for crash reporting that catches uncaught exceptions, collects detailed device and application conte… | 71 | 6502 | active |
| elixir-ecto/ecto Ecto is a toolkit for data mapping and language-integrated queries in Elixir, providing schemas, changesets, and a composable query DSL. It… | 67 | 6487 | stable |
| hibernate/hibernate-orm Hibernate ORM is the de facto object-relational mapping library for Java, implementing the Jakarta Persistence (JPA) specification to map d… | 95 | 6470 | stable |
| apache/flink-cdc Flink CDC is a distributed streaming data integration tool built on Apache Flink that captures change data from databases like MySQL and Po… | 83 | 6468 | active |
| 00-Evan/shattered-pixel-dungeon Shattered Pixel Dungeon is an open-source traditional roguelike dungeon crawler RPG with randomized levels, enemies, and hundreds of items,… | 82 | 6466 | active |
| facebook/facebook-android-sdk The official Facebook SDK for Android, providing modular libraries to integrate Facebook Platform features into Android apps. It includes m… | 88 | 6456 | active |
| alexreisner/geocoder A complete Ruby geocoding library supporting forward and reverse geocoding of addresses, coordinates, and IP addresses via 40+ external API… | 75 | 6446 | stable |
| micronaut-projects/micronaut-core Micronaut is a modern, JVM-based full-stack framework for building modular, easily testable applications and microservices in Java, Kotlin,… | 95 | 6421 | stable |
| haifengl/smile SMILE is a comprehensive, high-performance machine learning framework for the JVM with idiomatic APIs for Java, Scala, and Kotlin. It cover… | 99 | 6413 | active |
| AsyncHttpClient/async-http-client AsyncHttpClient (AHC) is a high-performance asynchronous, non-blocking HTTP and WebSocket client library for Java built on Netty. It suppor… | 98 | 6393 | active |
| apache/iotdb Apache IoTDB is an open-source time-series database management system designed for industrial IoT, providing integrated collection, storage… | 92 | 6382 | stable |
| joelittlejohn/jsonschema2pojo jsonschema2pojo generates Java types (POJOs) from JSON Schema or example JSON documents, annotating them for data-binding with Jackson 2.x/… | 80 | 6381 | active |
| wasabeef/richeditor-android A rich text WYSIWYG editor component library for Android, built in Java and distributed via Maven Central. It provides a WebView-based edit… | 32 | 6347 | stable |
| jeequan/jeepay Jeepay is an open-source aggregated payment system for internet businesses, supporting normal merchant mode, multi-channel service-provider… | 84 | 6344 | active |
| lightbend/config Lightbend Config (formerly Typesafe Config) is a dependency-free Java library for loading application configuration in JVM languages. It su… | 87 | 6313 | stable |
| apache/incubator-kie Apache KIE (Knowledge Is Everything) is an umbrella project for business automation technologies on the JVM, including the Drools rule engi… | 82 | 6306 | active |
| apache/camel Apache Camel is an open-source integration framework offering 350+ connectors for databases, APIs, message brokers, and cloud services, wit… | 77 | 6300 | stable |
| scala/scala3 The Scala 3 compiler (Dotty), along with the Scala 3 standard library and language specification. It compiles Scala 3 source code to JVM by… | 91 | 6296 | stable |
| sparklemotion/nokogiri Nokogiri is a Ruby library for parsing, querying, modifying, and generating XML and HTML documents, built on native parsers like libxml2, l… | 96 | 6277 | stable |
| rundeck/rundeck Rundeck is an open-source runbook automation and orchestration service with a web console, CLI tools, and WebAPI for standardizing and sche… | 94 | 6277 | active |
| auth0/java-jwt A Java library for creating and verifying JSON Web Tokens (JWT) per RFC 7519, supporting HMAC, RSA, and ECDSA signing algorithms. It is mai… | 92 | 6235 | active |
| alipay/SoloPi SoloPi is an open-source wireless, non-intrusive mobile automation testing tool for Android (with a HarmonyOS branch), offering record-and-… | 98 | 6231 | active |
| graphql-java/graphql-java GraphQL Java is the standard JVM implementation of the GraphQL specification, providing schema parsing, schema generation, and query execut… | 95 | 6223 | stable |
| PixelPlayerHQ/PixelPlayer PixelPlayer is a privacy-first, offline music player for Android built with Kotlin, Jetpack Compose, and Material 3 Expressive. It offers m… | 78 | 6222 | active |
| apache/hudi Apache Hudi is an open data lakehouse platform built on a high-performance open table format that brings database functionality like transa… | 91 | 6219 | stable |
| overtone/overtone Overtone is a Clojure toolkit providing an API to the SuperCollider synthesis engine for designing synthesizers, live-coding music, and col… | 63 | 6216 | active |
| PBH-BTN/PeerBanHelper PeerBanHelper is a self-hosted Java application that automatically bans unwanted, leeching, and abnormal BitTorrent peers by connecting to … | 88 | 6210 | active |
| apache/nifi Apache NiFi is an easy-to-use, powerful, and reliable system to process and distribute data, built on the JVM. It provides a browser-based … | 94 | 6208 | stable |
| google/google-java-format A program that reformats Java source code to comply with Google Java Style, usable from the command line or via an IntelliJ/JetBrains plugi… | 93 | 6179 | active |
| apache/fesod Apache Fesod (Incubating) is a high-performance, memory-efficient Java library for reading and writing spreadsheet files such as xlsx, xls,… | 80 | 6175 | active |
| vavr-io/vavr Vavr (formerly Javaslang) is an object-functional library for Java 8+ providing persistent immutable collections, pattern matching, and fun… | 81 | 6166 | stable |
| SukiSU-Ultra/SukiSU-Ultra SukiSU-Ultra is a kernel-based Android root solution providing kernel-level su and root access management, with support for KPM kernel modu… | 82 | 6162 | active |
| obsidiandynamics/kafdrop Kafdrop is a lightweight web UI for viewing Apache Kafka topics, brokers, consumer groups, and browsing messages. It runs on Spring Boot an… | 68 | 6153 | active |
| javaparser/javaparser JavaParser is a Java library that parses Java source code (Java 1.0 through Java 25) into an Abstract Syntax Tree with advanced analysis ca… | 86 | 6141 | active |
| gz-yami/mall4cloud Mall4cloud is an open-source (AGPLv3) microservices-based B2B2C e-commerce mall system built on Spring Boot 4, Spring Cloud, Nacos, Seata, … | 80 | 6137 | active |
| apache/pinot Apache Pinot is an open-source distributed OLAP datastore purpose-built for low-latency, high-throughput real-time analytics. It ingests da… | 84 | 6128 | stable |
| JackJiang2011/MobileIMSDK MobileIMSDK is an original, lightweight cross-platform instant messaging (IM) communication-layer framework refined over 10 years. It uniqu… | 69 | 6085 | stable |
| ZhongFuCheng3y/austin Austin is a unified message push platform written in Java (Spring Boot) that sends notifications across channels such as email, SMS, WeChat… | 71 | 6072 | active |
| androidx/androidx The development environment and source repository for Android Jetpack's androidx.* extension libraries, synchronized with AOSP's primary de… | 77 | 6071 | active |
| github/markup github-markup is a Ruby library that determines which markup library to use to convert content files like READMEs into HTML, supporting for… | 80 | 6045 | active |
| robolectric/robolectric Robolectric is the industry-standard unit testing framework for Android that runs tests in a simulated Android environment inside a JVM, av… | 83 | 6041 | active |
| houbb/sensitive-word A high-performance Java library for sensitive/prohibited word detection and filtering based on the DFA algorithm, with a built-in 60k+ word… | 56 | 6026 | active |
| WeiYe-Jing/datax-web DataX-Web is a distributed data synchronization tool built on top of Alibaba's DataX, providing a web UI to visually configure and manage d… | 23 | 6018 | stable |
| apache/hive Apache Hive is a distributed, fault-tolerant data warehouse system that enables reading, writing, and managing petabytes of data in distrib… | 77 | 6015 | active |
| opengoofy/hippo4j Hippo4j is a Java framework for managing, observing, and dynamically tuning thread pools at runtime without code changes. It provides a con… | 55 | 6001 | active |
| btraceio/btrace BTrace is a production-safe dynamic tracing tool for Java applications that attaches to live JVMs and injects tracing code via bytecode ins… | 67 | 5991 | active |
| JSQLParser/JSqlParser JSqlParser is a Java library that parses SQL statements into a traversable hierarchy of Java classes (an AST) that can be navigated via the… | 74 | 5956 | active |
| hneemann/Digital Digital is a digital logic designer and circuit simulator built in Java, aimed primarily at education. It supports interactive signal visua… | 62 | 5945 | active |
| Kotlin/kotlinx.serialization Kotlin multiplatform serialization library consisting of a compiler plugin and runtime that generates serialization code for @Serializable … | 88 | 5943 | stable |
| journeyapps/zxing-android-embedded An Android barcode scanning library built on the ZXing decoder, usable via Intents or embedded in an Activity for custom UI. It supports po… | 23 | 5931 | stable |
| airbnb/mavericks Mavericks (formerly MvRx) is Airbnb's Android framework for building screens with an unidirectional state management architecture based on … | 70 | 5929 | active |
| guardian/frontend The backend Scala application powering theguardian.com, built as a set of Play Framework 2 services. It fetches content from the Guardian's… | 77 | 5899 | active |
| weibocom/motan Motan is a cross-language remote procedure call (RPC) framework for rapidly building high-performance distributed services, originally deve… | 52 | 5873 | active |
| HapeLee/legado-with-MD3 Legado with MD3 is a free, open-source Android e-book and content aggregation reader, rebuilt from the Legado (阅读 3.0) project with a Mater… | 82 | 5860 | active |
| ffay/lanproxy lanproxy is a self-hosted NAT traversal / reverse proxy tool that exposes machines behind a firewall to the public internet by forwarding T… | 45 | 5853 | active |
| ruby-concurrency/concurrent-ruby A Ruby gem providing modern concurrency abstractions such as futures, promises, agents, thread pools, and supervisors, inspired by Erlang, … | 83 | 5831 | stable |
| JanusGraph/janusgraph JanusGraph is an open-source, distributed graph database optimized for storing and querying graphs with billions of vertices and edges acro… | 78 | 5829 | active |
| jindrapetrik/jpexs-decompiler JPEXS Free Flash Decompiler (FFDec) is an open-source Java application for decompiling and editing Adobe Flash SWF files. It extracts resou… | 93 | 5828 | active |
| 201206030/novel novel is a learning-oriented, full-stack novel/fiction CMS built with Spring Boot 3 and Vue 3 in a front-end/back-end separated architectur… | 45 | 5801 | active |
| redis/lettuce Lettuce is a scalable, thread-safe Redis client for Java built on Netty, supporting synchronous, asynchronous, and reactive APIs. It provid… | 99 | 5776 | stable |
| GeyserMC/Geyser Geyser is a proxy/bridge that translates packets between Minecraft: Bedrock Edition clients and Minecraft: Java Edition servers, enabling t… | 77 | 5760 | active |
| changmingxie/tcc-transaction tcc-transaction is a Java framework implementing TCC (Try-Confirm-Cancel) distributed transactions for microservice architectures. It coord… | 24 | 5759 | stable |
| mockk/mockk MockK is a mocking library for Kotlin providing a Kotlin-first DSL for creating mocks, stubbing behavior, and verifying calls. It supports … | 89 | 5757 | active |
| jagrosh/MusicBot JMusicBot is a cross-platform Discord music bot written in Java that is easy to set up and run yourself. It plays music from YouTube, Sound… | 23 | 5755 | stable |
| Nepxion Discovery Nepxion Discovery is a cloud-native microservice governance framework for Spring Cloud and Spring Cloud Alibaba. It provides blue-green and… | 49 | 5752 | active |
| dromara/lamp-cloud lamp-cloud is a Java-based microservices rapid development platform built on Spring Boot and Spring Cloud, focused on multi-tenant (SaaS) a… | 71 | 5748 | active |
| CaffeineMC/sodium Sodium is a high-performance rendering engine replacement and optimization mod for the Minecraft client. It significantly improves frame ra… | 97 | 5735 | active |
| cinit/QAuxiliary QAuxiliary is an open-source Xposed module based on QNotified that adds extra features and tweaks to the QQ and TIM Android messaging clien… | 92 | 5720 | active |
| tonikelope/megabasterd MegaBasterd is an unofficial cross-platform desktop application for downloading, uploading, and streaming files from the MEGA cloud storage… | 98 | 5718 | active |
| killbill/killbill Kill Bill is an open-source subscription billing and payments platform that manages subscriptions, invoicing, payment processing, and dunni… | 94 | 5704 | stable |
| mik3y/usb-serial-for-android A Java driver library for Android that enables communication with USB serial hardware (Arduino, FTDI, CDC devices, and others) via Android … | 83 | 5671 | active |
| ageerle/ruoyi-ai RuoYi AI is an open-source, enterprise-grade full-stack AI assistant platform built in Java on the RuoYi ecosystem and LangChain4j. It unif… | 91 | 5666 | active |
| diffplug/spotless Spotless is a code formatting plugin for Gradle, Maven, and SBT that checks and automatically fixes formatting violations across many langu… | 95 | 5624 | stable |
| zhukunpenglinyutong/jetbrains-cc-gui A JetBrains IntelliJ IDEA plugin providing a visual GUI for Claude Code and OpenAI Codex AI coding assistants. It adds conversation, agent,… | 83 | 5609 | active |
| TommyLemon/Android-ZBLibrary Android-ZBLibrary is an Android MVP rapid development framework in Java that provides base classes, templates, utility classes, and compreh… | 56 | 5605 | active |
| liquibase/liquibase Liquibase is an open-source database schema change management tool that tracks, versions, and deploys database changes defined in SQL, XML,… | 95 | 5596 | stable |
| kizitonwose/Calendar A highly customizable calendar library for Android (view system via RecyclerView) and Compose Multiplatform (via LazyRow/LazyColumn). It pr… | 86 | 5587 | active |
| fcitx5-android/fcitx5-android An Android port of the Fcitx5 input method framework, providing a system keyboard app with support for many languages and input engines. It… | 87 | 5585 | active |
| apache/hbase Apache HBase is an open-source, distributed, versioned, column-oriented NoSQL database modeled after Google Bigtable, running on top of Apa… | 94 | 5552 | stable |
| tasks/tasks Tasks is a free, open-source to-do list and reminders app for Android (with an alpha desktop version), revived from the discontinued Astrid… | 99 | 5514 | active |
| rubenlagus/TelegramBots A Java library for building Telegram bots using the Telegram Bots API, supporting both long polling and webhook methods. It is distributed … | 95 | 5505 | active |
| Jasonchenlijian/FastBle FastBle is an Android Bluetooth Low Energy development framework that simplifies BLE operations like scanning, filtering, connecting, readi… | 57 | 5504 | active |
| pmd/pmd PMD is an extensible multilanguage static code analyzer that finds common programming flaws like unused variables, empty catch blocks, and … | 96 | 5473 | stable |
| apache/groovy Apache Groovy is a multi-faceted programming language for the JVM that offers Java-like syntax with productivity features such as closures,… | 77 | 5464 | stable |
| typelevel/cats Cats is a lightweight, modular, and extensible Scala library providing abstractions for functional programming, such as type classes (Funct… | 67 | 5456 | stable |
| scribejava/scribejava ScribeJava is a simple, threadsafe OAuth client library for Java supporting OAuth 1.0a and OAuth 2.0 flows. It ships prebuilt API integrati… | 60 | 5455 | stable |
| runelite/runelite RuneLite is a free, open-source Old School RuneScape game client written in Java with a plugin architecture. It adds overlays, trackers, an… | 77 | 5448 | active |
| LWJGL/lwjgl3 LWJGL 3 is a Java library providing cross-platform, high-performance bindings to native APIs such as OpenGL, Vulkan, OpenAL, OpenCL, and Op… | 95 | 5435 | stable |
| coobird/thumbnailator Thumbnailator is a Java library for generating high-quality image thumbnails with a simple fluent API. It wraps the Java Image I/O and Java… | 63 | 5425 | active |
| remkop/picocli Picocli is a Java framework and library for building command line applications with an annotations API and a programmatic API. It ships as … | 67 | 5414 | stable |
| LFDT-web3j/web3j Web3j is a lightweight, modular, reactive, type-safe Java and Android library for integrating with Ethereum clients and working with smart … | 91 | 5391 | active |
| Netflix/Hystrix Hystrix is a Java library for latency and fault tolerance in distributed systems, providing circuit breakers, thread/semaphore isolation, f… | 48 | 24474 | maintenance |
| novicezk/midjourney-proxy A Java-based proxy service that wraps MidJourney's Discord channel into a REST API, enabling programmatic AI image generation. It supports … | 45 | 5347 | active |
| apache/opendal Apache OpenDAL is an Open Data Access Layer providing one unified API to access object storage, file systems, cloud SaaS, databases, protoc… | 99 | 5341 | stable |
| google/gson Gson is a Java library for converting Java objects to JSON and back, working with arbitrary objects via reflection without requiring annota… | 88 | 24225 | maintenance |
| apache/maven Apache Maven is the standard build automation and dependency management tool for Java projects, driven by a declarative pom.xml project obj… | 93 | 5323 | stable |
| mybatis/generator MyBatis Generator (MBG) is a code generator that introspects database tables and generates Java or Kotlin model classes and MyBatis mapper … | 81 | 5313 | stable |
| Exrick/xpay XPay is a free, self-hosted personal payment collection system written in Java (Spring Boot) that lets individuals accept payments via Alip… | 32 | 5294 | active |
| oshi/oshi OSHI is a free, cross-platform Java library for retrieving native operating system and hardware information using JNA or the JDK Foreign Fu… | 99 | 5260 | active |