platform: jvm
3641 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| npgall/cqengine CQEngine (Collection Query Engine) is a high-performance Java library that allows SQL-like queries to be executed against Java collections … | 32 | 1770 | stable |
| yanzhenjie/AndPermission AndPermission is an Android library that simplifies requesting runtime permissions and special permissions like installing unknown-source A… | 32 | 6624 | maintenance |
| tyron12233/CodeAssist CodeAssist is a lightweight IDE that runs entirely on Android devices, allowing users to edit and build Android and Java projects without n… | 99 | 1769 | active |
| PatilShreyas/NotyKT NotyKT is a full-stack Kotlin note-taking application combining a Ktor-based REST API backend with a modern Android client. It serves as a … | 58 | 1769 | active |
| git-goods/gitanimals GitAnimals is a gamification service that lets GitHub users raise virtual pets based on their commit and contribution activity, rendered as… | 70 | 1768 | active |
| Netflix/genie Genie is a federated distributed job orchestration and execution engine developed by Netflix, exposing REST APIs to run big data jobs like … | 64 | 1767 | active |
| TimefoldAI/timefold-solver Timefold Solver is an open-source, embeddable constraint satisfaction and optimization engine for Java and Kotlin, continuing Red Hat's Opt… | 96 | 1765 | active |
| j3ers3/Hello-Java-Sec A deliberately vulnerable Java Spring Boot application demonstrating common web vulnerabilities (SQLi, XSS, RCE, deserialization, SSTI, SSR… | 27 | 1763 | active |
| kairosdb/kairosdb KairosDB is a fast, distributed, scalable time series database written in Java and built on top of Cassandra. It stores and queries metrics… | 54 | 1762 | active |
| qi4L/JYso JYso is a Java-based offensive security tool that combines the capabilities of ysoserial (Java deserialization gadget generation) and JNDIE… | 83 | 1761 | active |
| angcyo/DslTabLayout DslTabLayout is a highly customizable Android tab layout library written in Kotlin, built as a custom-drawn ViewGroup rather than a composi… | 62 | 1761 | active |
| metosin/malli Malli is a high-performance, data-driven data specification library for Clojure and ClojureScript. It provides schema definitions as plain … | 85 | 1760 | active |
| nguyenq/tess4j Tess4J is a Java JNA wrapper for the Tesseract OCR API, enabling optical character recognition in Java applications. It supports TIFF, JPEG… | 91 | 1757 | stable |
| foundweekends/giter8 Giter8 is a command line tool that generates files and directories from templates published on GitHub or any other Git repository. It is im… | 70 | 1752 | active |
| bytedance/appshark AppShark is a static taint analysis platform written in Kotlin that scans Android APKs for security vulnerabilities and compliance issues. … | 54 | 1752 | active |
| sqlancer/sqlancer SQLancer is a Java-based automated testing tool that finds logic and performance bugs in database management systems. It generates SQL test… | 67 | 1750 | active |
| graalvm/graalvm-ce-builds GraalVM CE builds is the official distribution repository of GraalVM Community Edition binaries built on OpenJDK. GraalVM is a high-perform… | 95 | 1748 | active |
| Kotlin/kotlinx.html kotlinx.html is an official JetBrains Kotlin library providing a type-safe DSL for building HTML, either streaming to a Writer/Appendable o… | 66 | 1747 | stable |
| apache/eventmesh Apache EventMesh is a cloud-native, serverless event middleware for building distributed event-driven applications. It provides a unified C… | 75 | 1746 | active |
| NLPchina/ansj_seg A Java library for Chinese word segmentation based on n-Gram+CRF+HMM, achieving ~2 million characters/second with 96%+ accuracy. It also pr… | 23 | 6517 | maintenance |
| whitfin/cachex Cachex is a fast in-memory key/value caching library for Elixir with optional features like TTL expiration, size limits, transactions, hook… | 65 | 1744 | stable |
| ximsfei/Android-skin-support Android-skin-support is an Android dynamic skinning (theme switching) library that lets apps change their look at runtime with a single lin… | 32 | 6508 | maintenance |
| 88250/solo Solo is a small, elegant Java-based blogging platform designed for programmers, part of the B3log distributed community network. It support… | 67 | 1743 | active |
| datastax/jvector JVector is an embedded approximate nearest neighbor (ANN) search engine for the JVM, implementing a graph index that merges HNSW's hierarch… | 89 | 1741 | active |
| LuxLang/lux Lux is a functional, statically-typed Lisp programming language with a compiler that targets the JVM, JavaScript, Python, Lua, and Ruby. It… | 72 | 1741 | active |
| 19MisterX98/SeedcrackerX SeedCrackerX is a Fabric mod for Minecraft that reverse-engineers the world seed of a server from in-game structural and terrain data. It i… | 84 | 1740 | active |
| opensourceBIM/BIMserver BIMserver is an open-source, model-driven server platform for storing, managing, and querying Building Information Modeling (BIM) data in t… | 58 | 1740 | active |
| kiegroup/jbpm jBPM is an open-source Business Process Management (BPM) suite written in pure Java for automating business processes and decisions using B… | 73 | 1739 | active |
| MightyPirates/OpenComputers OpenComputers is a Minecraft mod that adds programmable computers, robots, and peripherals to the game, powered by a persistent Lua 5.2 run… | 10 | 1739 | active |
| OpenBankProject/OBP-API An open-source RESTful API platform for banks that exposes accounts, transactions, payments, counterparties, entitlements and metadata, sup… | 77 | 1738 | active |
| standard-webhooks/standard-webhooks Standard Webhooks is an open specification plus reference libraries and tools for sending and verifying webhooks securely and consistently.… | 85 | 1737 | active |
| awslabs/aws-config-rules A community repository of sample custom AWS Config rules written in Python, Node.js, and Java. These Lambda-based rules evaluate AWS resour… | 70 | 1735 | active |
| fthomas/refined refined is a Scala library for refinement types, letting you attach type-level predicates to base types so value constraints are checked at… | 85 | 1733 | active |
| mit-cml/appinventor-sources MIT App Inventor is a visual, block-based programming platform that lets users build Android applications without writing traditional code.… | 77 | 1733 | active |
| vanniktech/gradle-maven-publish-plugin A Gradle plugin that automates publishing Java, Kotlin, Android, and Kotlin Multiplatform libraries to Maven Central or any Nexus instance,… | 92 | 1732 | active |
| pgjdbc/pgjdbc PgJDBC is the official open-source PostgreSQL JDBC driver, written in pure Java (Type 4) and communicating via the PostgreSQL native networ… | 93 | 1731 | stable |
| ballcat-projects/ballcat BallCat is a Java/Spring Boot rapid development scaffold for building enterprise-grade admin management systems, with companion frontend pr… | 85 | 1728 | active |
| SpigotMC/BungeeCord BungeeCord is a layer 7 proxy server that links multiple Minecraft servers together, teleporting players between them while maintaining con… | 77 | 1727 | stable |
| Sketchware-Pro/Sketchware-Pro Sketchware Pro is a free, open-source Android app builder that lets users create native Android applications entirely from their smartphone… | 67 | 1727 | active |
| GrimAnticheat/Grim GrimAC is an open-source Minecraft anticheat plugin that detects cheats by simulating real client movement with fully asynchronous, multith… | 82 | 1724 | active |
| ddssingsong/webrtc_android An Android demo application built on WebRTC supporting one-to-one voice/video calls and many-to-many video conferencing, with a companion J… | 23 | 1722 | active |
| apache/plc4x Apache PLC4X is a set of multi-language libraries (Java, Go, Python, C/C++, .NET) providing a unified API for communicating with industrial… | 80 | 1721 | stable |
| yannecer/NCalendar An Android calendar UI library written in Kotlin that mimics MIUI, DingTalk, and Huawei calendar styles. It supports month and week views w… | 23 | 1721 | stable |
| GitLiveApp/firebase-kotlin-sdk A Kotlin-first, multiplatform SDK for Firebase that wraps Firebase services (Auth, Firestore, Realtime Database, Functions, Analytics, Mess… | 94 | 1720 | active |
| wxiaoqi/Spring-Cloud-Platform A Chinese Spring Cloud microservices-based RBAC admin platform built on Spring Boot 2.4, Spring Cloud 2020.0.0 & Alibaba, with a d2-admin f… | 23 | 6403 | maintenance |
| aklivity/zilla Zilla is a stateless, multi-protocol gateway for event-driven applications and AI agents, exposing Kafka and MQTT over HTTP, SSE, gRPC, MQT… | 99 | 1717 | active |
| datageartech/datagear DataGear is an open-source, self-hosted data visualization and analysis platform for freely building interactive data dashboards. It connec… | 76 | 1717 | active |
| git-commit-id/git-commit-id-maven-plugin A Maven plugin that captures git repository information (commit id, branch, tags, dirty state) at build time and exposes it as pom.xml prop… | 91 | 1716 | stable |
| LemonAppDev/konsist Konsist is a structural linter and static code analyzer for Kotlin that enforces codebase consistency and architecture rules. Checks are wr… | 76 | 1716 | active |
| JLLeitschuh/ktlint-gradle A Gradle plugin that wraps the ktlint Kotlin linter, adding tasks to run style checks and auto-format Kotlin code. It activates automatical… | 85 | 1715 | active |
| x-ream/sqli sqli is a Java SQL query builder and lightweight ORM programming interface with fluent APIs (QB, QB.X, QrB) for building typed and Map-base… | 65 | 1712 | active |
| apache/guacamole-client Apache Guacamole client is the Maven-based superproject containing the HTML5 web application, official authentication extensions, and JavaS… | 77 | 1710 | active |
| Splitties/refreshVersions refreshVersions is a Gradle plugin that centralizes dependency versions in a versions.properties file and automates finding and applying de… | 40 | 1710 | active |
| getActivity/AndroidProject-Kotlin A Kotlin-based Android project template ('technology middle platform') providing a ready-made architecture with common screens, dialogs, an… | 73 | 1709 | active |
| zhujiang521/PlayAndroid A Kotlin Android client app for the WanAndroid API built with MVVM architecture and Jetpack libraries (Compose, Room, Hilt, DataStore, Coro… | 51 | 1709 | active |
| controlsfx/controlsfx ControlsFX is an open-source Java library providing high-quality UI controls and utility APIs that complement the core JavaFX distribution.… | 88 | 1708 | stable |
| SmartBear/soapui SoapUI is a free, open-source, cross-platform desktop application for functional testing of SOAP and REST APIs and web services. It support… | 78 | 1705 | active |
| sshahine/JFoenix JFoenix is an open-source Java library that implements Google's Material Design as JavaFX UI components. It provides Material-styled contro… | 32 | 6327 | maintenance |
| dingodb/dingo DingoDB is an open-source distributed multi-modal vector database that combines relational (SQL) and vector semantics in a unified platform… | 64 | 1701 | active |
| optics-dev/Monocle Monocle is a Scala optics library providing a simple yet powerful API to access and transform immutable data using lenses, prisms, traversa… | 67 | 1700 | active |
| mateaix/matecloud MateCloud is a Java-based microservices scaffold built on Spring Boot 4, Spring Cloud 2025, Spring Cloud Alibaba, and Dubbo 3, offering gat… | 83 | 1689 | active |
| murraco/spring-boot-jwt A JWT authentication service built with Spring Boot and Spring Security, backed by MySQL, featuring short-lived access tokens and rotating,… | 76 | 1688 | active |
| jasync-sql/jasync-sql jasync-sql is an asynchronous, Netty-based database driver for MySQL and PostgreSQL written in Kotlin, usable from Java and Kotlin. It prov… | 51 | 1688 | active |
| xyoye/DanDanPlayForAndroid DanDanPlay Concept Edition is an Android local video player that combines video playback (local and network sources like SMB, FTP, WebDAV) … | 85 | 1687 | active |
| raodv/captcha AjPlus Captcha is an open-source behavioral CAPTCHA library providing sliding puzzle and click-word verification challenges with frontend U… | 39 | 1685 | active |
| spring-projects/spring-data-mongodb Spring Data MongoDB is part of the Spring Data umbrella, providing integration between Java applications and the MongoDB document database.… | 98 | 1684 | active |
| koush/ion Ion is an Android library for asynchronous networking and image loading, built on NIO and AndroidAsync. It provides a fluent API for downlo… | 76 | 6243 | maintenance |
| polardb/polardbx-sql PolarDB-X is a cloud native distributed SQL database built in Java with a shared-nothing architecture that decouples compute from storage. … | 49 | 1682 | stable |
| whwlsfb/JDumpSpider JDumpSpider is a Java CLI tool that extracts sensitive information (datasource credentials, config properties, Redis configs, Shiro keys, u… | 70 | 1680 | active |
| MorphiaOrg/morphia Morphia is a Java object-document mapper (ODM) for MongoDB built on top of the official MongoDB Java driver. It maps Java and Kotlin classe… | 67 | 1675 | active |
| bazaarvoice/jolt Jolt is a Java library for JSON-to-JSON transformation where the transform specification is itself a JSON document. It provides chained sto… | 66 | 1675 | stable |
| cjbi/admin3 Admin3 is a lightweight admin management framework built on Java 21/Spring Boot 3.2 for the backend and TypeScript/Vite/Vue3/Element Plus f… | 58 | 1675 | active |
| rebeyond/Behinder Behinder ('冰蝎') is a cross-platform Java client for managing encrypted webshells on compromised web servers running PHP, Java, or .NET. It … | 23 | 6191 | maintenance |
| jwpttcg66/NettyGameServer A distributed mobile game server framework built on Netty 4.x in Java, supporting TCP, UDP, HTTP, and WebSocket connections with a custom p… | 57 | 1671 | active |
| apache/solr Apache Solr is a fast, open-source, multi-modal search platform built on Apache Lucene, providing full-text, vector, and geospatial search … | 77 | 1667 | stable |
| typelevel/skunk Skunk is a purely functional data access library for Scala and Postgres, built on cats, cats-effect, fs2, and scodec. It provides a non-blo… | 84 | 1664 | active |
| summitt/Nope-Proxy NoPE Proxy is a Burp Suite extension that adds TCP and UDP traffic interception, a configurable DNS server, and a non-HTTP man-in-the-middl… | 23 | 1663 | active |
| babyfish-ct/jimmer Jimmer is a modern ORM framework for the JVM supporting both Java and Kotlin, built around immutable entities and type-safe query DSLs. It … | 95 | 1662 | active |
| tabby-sec/tabby Tabby is a Java static code analysis tool built on the Soot framework that converts JAR/WAR/CLASS files into a code property graph stored i… | 51 | 1659 | active |
| japgolly/scalajs-react A Scala.js library that provides type-safe, Scala-friendly bindings for Facebook's React, with opt-in functional programming support via Ca… | 82 | 1657 | active |
| JetBrains/MPS JetBrains MPS is an open-source meta-programming system (language workbench) for designing domain-specific languages with a complete develo… | 77 | 1656 | stable |
| devnied/EMV-NFC-Paycard-Enrollment A Java library for reading and extracting public data from NFC EMV credit cards over Android NFC or PCSC readers. It parses card details su… | 63 | 1654 | active |
| Stream Chat The official Android SDK for Stream Chat, providing a low-level chat client plus reusable UI components and Jetpack Compose messaging UI fo… | 95 | 1649 | stable |
| alexzhirkevich/compose-cupertino Compose Cupertino is a Kotlin Multiplatform library providing iOS-style (Cupertino) UI components for Compose Multiplatform, including them… | 40 | 1649 | active |
| liaochong/myexcel MyExcel is a Java toolkit for importing, exporting, and encrypting Excel files (.xls, .xlsx, .csv) built on top of Apache POI. It uses HTML… | 23 | 1649 | active |
| whwlsfb/BurpCrypto BurpCrypto is a Burp Suite extension that encrypts Intruder payloads with algorithms like AES, RSA, and DES, or by executing arbitrary Java… | 23 | 1648 | active |
| daimajia/NumberProgressBar A slim, customizable progress bar widget for Android that displays progress with a number indicator and multiple preset color styles. It is… | 23 | 6089 | maintenance |
| ikew0ng/SwipeBackLayout An Android library that adds swipe-back gesture navigation to activities, letting users close or navigate back by swiping from screen edges… | 32 | 6081 | maintenance |
| mekanism/Mekanism Mekanism is an independent Minecraft mod adding high-tech machinery, energy systems, tiered factories, jetpacks, armor, and tools. It is wr… | 91 | 1643 | active |
| igorescodro/alkaa Alkaa is an open-source to-do application built with Kotlin and Compose Multiplatform, available on Android, iOS, and Desktop. It serves as… | 87 | 1642 | active |
| chat-sdk/chat-sdk-android An open-source instant messaging framework (SDK) for Android that provides a fully featured chat client with private, group, and public cha… | 61 | 1642 | active |
| Philippus/elastic4s Elastic4s is a concise, type-safe, reactive Scala client for Elasticsearch built around a builder-like DSL. It supports Scala idioms like f… | 91 | 1639 | active |
| MohamedRejeb/Calf Calf is a Kotlin library for Compose Multiplatform that provides adaptive UI components and wrappers for platform-specific APIs such as fil… | 87 | 1639 | active |
| cloudfoundry/uaa Cloud Foundry's User Account and Authentication (UAA) server, a multi-tenant identity management service that acts as an OAuth2 provider an… | 99 | 1638 | active |
| vanniktech/Emoji A Kotlin Multiplatform library that adds emoji support to Android, iOS, and JVM applications. It provides emoji pickers (popup and standalo… | 83 | 1638 | active |
| oracle/graalpython GraalPy is a high-performance Python 3.12 implementation for the JVM built on GraalVM. It supports embedding Python in Java applications an… | 95 | 1636 | active |
| skydoves/compose-stability-analyzer An IntelliJ/Android Studio plugin (with a Kotlin compiler plugin component) that analyzes Jetpack Compose composable functions' stability i… | 83 | 1635 | active |
| monkeyWie/proxyee Proxyee is a Java library built on Netty that implements an HTTP proxy server supporting HTTP, HTTPS, and WebSocket protocols. It provides … | 30 | 1634 | active |
| Kotlin/kotlinx-kover Kover is a JetBrains toolset for measuring test coverage of Kotlin code compiled for JVM and Android, provided as Gradle and Maven plugins,… | 90 | 1630 | active |
| apache/pekko Apache Pekko is an open-source JVM framework for building concurrent, distributed, and resilient message-driven applications using the Acto… | 77 | 1629 | active |