platform: jvm
3641 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| Chanven/CommonPullToRefresh An Android UI library providing pull-to-refresh functionality for virtually any view, plus load-more support for ListView, RecyclerView, Gr… | 32 | 1059 | abandoned |
| lovedise/PermissionGen PermissionGen is a small Java library that simplifies runtime permission requests on Android 6.0 (Marshmallow) using a fluent API and annot… | 32 | 1058 | abandoned |
| loklak/loklak_jlib_api A Java client library for the Loklak server, which scrapes and provides open access to social media data (primarily Twitter) without requir… | 32 | 1057 | abandoned |
| wzgiceman/RxjavaRetrofitDemo-master An Android library that wraps Retrofit, RxJava, and OkHttp into a unified HTTP request framework with Gson-based parsing. It centralizes re… | 32 | 1057 | abandoned |
| JakeWharton/retrofit2-kotlinx-serialization-converter A Retrofit 2 Converter.Factory that lets Retrofit use kotlinx.serialization for serializing request bodies and deserializing response bodie… | 10 | 1055 | abandoned |
| tomthecarrot/arcore-for-all A modified build of Google's ARCore developer preview library that removes the official device whitelist check, enabling ARCore to run on u… | 10 | 1054 | abandoned |
| burningcl/wechat_jump_hack A Java-based bot that automatically plays WeChat's 'Jump Jump' (跳一跳) mini-game by capturing screenshots via ADB, recognizing player and tar… | 32 | 1053 | abandoned |
| tokudu/AndroidPushNotificationsDemo An example Android app demonstrating how to receive push notifications using the MQTT protocol. It accompanies a 2010 tutorial on implement… | 32 | 1049 | abandoned |
| ernestoyaquello/VerticalStepperForm An Android library implementing highly customizable vertical stepper forms following Google Material Design guidelines. It is now archived … | 10 | 1049 | abandoned |
| sitewhere/sitewhere SiteWhere is an open-source, multi-tenant IoT application enablement platform built on Java/Spring microservices, offering device and asset… | 65 | 1047 | abandoned |
| Grover-c13/PokeGOAPI-Java A Java library providing an unofficial client API for Pokemon GO, allowing programs to interact with the game's servers. It supports action… | 23 | 1045 | abandoned |
| chrisbanes/gradle-mvn-push A Gradle script helper that automates uploading Android AAR artifacts (and other Gradle builds) to Maven repositories such as Maven Central… | 32 | 1042 | abandoned |
| richox/okcoin-leeks-reaper A high-frequency trading bot for the OKCoin Bitcoin exchange, written in Groovy, combining a trend-following strategy with a position-balan… | 32 | 1040 | abandoned |
| nikhilpanju/RecyclerViewEnhanced An Android library that adds swipe-to-reveal options, row clicks, and independent view click handling to existing RecyclerViews without req… | 23 | 1036 | abandoned |
| ervandew/eclim Eclim brings Eclipse IDE functionality (code completion, validation, navigation) into the Vim editor via a Java-based server. The project r… | 10 | 1036 | abandoned |
| loopeer/itemtouchhelper-extension An Android library extending ItemTouchHelper to add swipe settling, recovery, and conflict-free behavior for RecyclerView items. It support… | 23 | 1035 | abandoned |
| TIBCOSoftware/snappydata SnappyData (TIBCO ComputeDB) is a distributed, memory-optimized analytics database that fuses an in-memory hybrid OLTP/OLAP store inside Ap… | 23 | 1033 | abandoned |
| xiongwei-git/AndroidVideoPlayer An Android video player library written in Java that mimics the NetEase News video player, supporting mp4 and 3gp playback in partial view … | 32 | 1032 | abandoned |
| JakeWharton/Android-DirectionalViewPager A deprecated Android library that extends the compatibility library's ViewPager to support paging in both vertical and horizontal orientati… | 10 | 1032 | abandoned |
| lyft/scoop Scoop is a micro framework by Lyft for building view-based modular Android applications. It provides a router with backstack navigation, vi… | 10 | 1032 | abandoned |
| z56402344/BaseAnimation An Android demo application collecting nearly 200 animation examples and custom controls with full source code, including splash screens, L… | 32 | 1029 | abandoned |
| antonkrasov/AndroidSocialNetworks An Android library providing a unified interface for working with Facebook, Twitter, LinkedIn, and Google Plus, handling login, profile inf… | 23 | 1029 | abandoned |
| Hitomis/ActivitySwitcher An Android library that manages Activity instances as card-style views, allowing users to visually switch between, jump to, or close any Ac… | 32 | 1020 | abandoned |
| GCX-HCI/ThirtyInch ThirtyInch is an MVP (Model-View-Presenter) library for Android that adds stateful Presenters to Activities and Fragments. Presenters survi… | 10 | 1020 | abandoned |
| devaige/MultiThreadDownloader A lightweight Java library for Android that performs multi-threaded HTTP file downloads with pause/resume support and progress tracking. It… | 32 | 1017 | abandoned |
| ba0gu0/520apkhook A Java-based tool that attaches an Android remote-access APK payload to a legitimate app, producing a trojanized APK where the original app… | 32 | 1015 | abandoned |
| falnatsheh/MarkdownView MarkdownView is an Android library that extends WebView to render Markdown text or local/remote Markdown files as formatted HTML, with opti… | 10 | 1012 | abandoned |
| armcha/LuseenBottomNavigation A Java Android library providing a Material Design-compliant BottomNavigationView component with customizable items, colors, and ViewPager … | 32 | 1008 | abandoned |
| serso/android-checkout A Java library simplifying integration of Android In-App Billing API v3+ for in-app purchases. It is deprecated and no longer maintained, w… | 23 | 1003 | abandoned |
| eateeer/BlurredView An Android library that provides dynamic blur effects on ImageViews using RenderScript. It allows setting a blurred image and adjusting the… | 10 | 1003 | abandoned |
| Protocol Buffers Protocol Buffers (protobuf) is Google's language-neutral, platform-neutral mechanism for serializing structured data, comprising the protoc… | 100 | 71988 | stable |
| skylot/jadx JADX is a Dex to Java decompiler that produces readable Java source code from Android APK, dex, aar, aab, and zip files, available as both … | 89 | 50328 | active |
| gRPC gRPC is a high-performance, open-source universal RPC framework that lets client and server applications communicate transparently across l… | 100 | 45289 | stable |
| Sentry Sentry is a developer-first error tracking and application performance monitoring platform that aggregates exceptions, traces, logs, replay… | 99 | 44721 | active |
| ccxt/ccxt CCXT is a unified trading API library supporting 100+ cryptocurrency exchanges and prediction markets across JavaScript/TypeScript, Python,… | 96 | 43848 | active |
| DuckDB DuckDB is an in-process analytical SQL database management system (OLAP) written in C++, designed to be fast, portable, and easy to embed. … | 98 | 40974 | stable |
| opendataloader-project/opendataloader-pdf OpenDataLoader PDF is an open-source (Apache-2.0) PDF parser that converts PDFs into AI-ready Markdown, JSON with per-element bounding boxe… | 86 | 28920 | active |
| google/flatbuffers FlatBuffers is Google's cross-platform, memory-efficient serialization library that stores data in a binary format you can read directly wi… | 83 | 26425 | stable |
| tursodatabase/turso Turso is an in-process SQL database written in Rust that is compatible with SQLite and experimentally supports a Postgres frontend. Like SQ… | 94 | 24152 | active |
| thingsboard/thingsboard ThingsBoard is an open-source IoT platform for device management, telemetry data collection, processing, and visualization. It supports sta… | 100 | 22356 | stable |
| lionsoul2014/ip2region ip2region is an offline IP-to-region localization library and IP data management framework supporting both IPv4 and IPv6 with city-level re… | 97 | 19500 | stable |
| react/yoga Yoga is an embeddable, high-performance flexbox layout engine written in C++ with a public C API and bindings for multiple languages. It co… | 79 | 18901 | active |
| questdb/questdb QuestDB is an open-source, high-performance time-series database with a column-oriented, SIMD-vectorized SQL engine written in zero-GC Java… | 99 | 17297 | stable |
| apache/arrow Apache Arrow is a language-independent columnar in-memory data format specification plus multi-language libraries (C++, Python/PyArrow, Jav… | 94 | 17080 | stable |
| dagger/dagger Dagger is a programmable automation engine for building, testing, and shipping software, replacing YAML pipelines with real code via SDKs i… | 95 | 16223 | active |
| Z3Prover/z3 Z3 is a high-performance SMT (Satisfiability Modulo Theories) theorem prover from Microsoft Research, written in C++. It solves logical con… | 95 | 12636 | stable |
| libvips/libvips libvips is a fast, demand-driven, horizontally threaded image processing library with low memory needs, offering around 300 operations acro… | 95 | 11623 | stable |
| daniulive/SmarterStreaming SmarterStreaming (大牛直播SDK/SmartMediaKit) is a proprietary cross-platform low-latency streaming SDK for Windows, Linux, Android, iOS, Harmon… | 66 | 11172 | active |
| ZeroMQ ZeroMQ (libzmq) is a high-performance, brokerless asynchronous messaging library implementing the ZMTP protocol, providing socket-like abst… | 65 | 10977 | stable |
| apache/thrift Apache Thrift is a lightweight, language-independent software stack for point-to-point RPC, combining an interface definition language, a c… | 86 | 10957 | stable |
| github/copilot-sdk A multi-platform SDK exposing the GitHub Copilot CLI agent runtime for programmatic use, with official SDKs for Python, TypeScript, Go, .NE… | 83 | 10457 | active |
| databendlabs/databend Databend is an open-source, cloud-native data warehouse built in Rust that runs entirely on object storage (S3, Azure, GCS). It unifies BI … | 93 | 9434 | active |
| unicorn-engine/unicorn Unicorn is a lightweight, multi-architecture CPU emulator framework based on QEMU, supporting ARM, ARM64, M68K, MIPS, PowerPC, RISC-V, SPAR… | 76 | 9295 | stable |
| xberg-io/xberg Xberg is a polyglot document intelligence framework with a Rust core that extracts text, metadata, tables, images, and structured data from… | 86 | 9261 | active |
| Model Context Protocol A collection of reference implementations of Model Context Protocol (MCP) servers maintained by the MCP steering group, demonstrating how t… | 84 | 9126 | active |
| CatBoost CatBoost is an open-source gradient boosting on decision trees library developed by Yandex, offering high-quality classification, regressio… | 86 | 9088 | stable |
| tdlib/td TDLib (Telegram Database Library) is a cross-platform C++ library for building fully functional Telegram clients. It handles networking, MT… | 76 | 9064 | stable |
| capstone-engine/capstone Capstone is a lightweight, multi-architecture, multi-platform disassembly framework written in pure C, designed to be the ultimate disassem… | 98 | 8995 | stable |
| Traccar Traccar is an open-source GPS tracking server written in Java that supports 200+ GPS protocols and 2000+ tracking device models. It provide… | 100 | 7689 | stable |
| H3 H3 is a hexagonal hierarchical geospatial indexing system developed at Uber, implemented as a C core library with bindings for many languag… | 86 | 6520 | stable |
| microsoft/semantic-kernel Semantic Kernel is a model-agnostic SDK and orchestration framework from Microsoft for building AI agents and multi-agent systems in .NET, … | 94 | 28527 | maintenance |
| aidlearning/AidLearning-FrameWork AidLux (originally AidLearning) is an AIoT development platform that runs a native Ubuntu Linux environment with GUI, deep learning tooling… | 69 | 5801 | active |
| iflytek/astron-rpa AstronRPA is an open-source enterprise-grade Robotic Process Automation desktop application with a visual low-code/no-code designer for aut… | 71 | 5519 | active |
| Proto.Actor Proto.Actor is an ultra-fast, cross-platform actor framework for Go, C#/.NET, and Java/Kotlin for building distributed, message-driven syst… | 57 | 5499 | active |
| EsotericSoftware/spine-runtimes Official runtime libraries for loading and rendering Spine 2D skeletal animation data in game engines and toolkits across many languages. T… | 77 | 5281 | stable |
| tianshiyeben/wgcloud WGCLOUD is a lightweight, distributed IT operations monitoring platform built on SpringBoot with a Go-based agent, designed for fast deploy… | 96 | 5180 | active |
| cjlin1/libsvm LIBSVM is a widely used library and command-line toolset for support vector machine classification, regression, and distribution estimation… | 59 | 4709 | stable |
| kaitai-io/kaitai_struct Kaitai Struct is a declarative language for describing binary data structures (file formats, network packet layouts) in .ksy files. A compi… | 77 | 4671 | active |
| o2oa/o2oa O2OA is a 100% open-source (AGPL-3.0) enterprise office automation (OA) and collaboration platform built on a JavaEE distributed architectu… | 67 | 4665 | active |
| phodal/auto-dev AutoDev is an AI-native multi-agent coding development platform built on Kotlin Multiplatform, distributed as an IntelliJ IDEA plugin, VS C… | 84 | 4538 | active |
| libjpeg-turbo/libjpeg-turbo libjpeg-turbo is a SIMD-accelerated JPEG image codec library that is API/ABI-compatible with libjpeg and generally 2-6x faster. It provides… | 88 | 4415 | stable |
| google/open-location-code Open Location Code is a multi-language library that encodes latitude/longitude into short 'Plus Codes' usable as digital street addresses w… | 56 | 4349 | stable |
| unum-cloud/USearch USearch is a fast, single-file similarity search and clustering engine for vectors and arbitrary objects, supporting spatial, binary, proba… | 94 | 4289 | active |
| cozodb/cozo CozoDB is a transactional, relational-graph-vector database written in Rust that uses Datalog as its query language. It runs embedded or as… | 23 | 4105 | active |
| ballerina-platform/ballerina-lang Ballerina is an open-source, cloud-native programming language optimized for integration, developed by WSO2, with built-in support for JSON… | 100 | 3849 | active |
| pantsbuild/pants Pants is a fast, scalable build system and developer workflow tool designed especially for monorepos containing multiple projects and langu… | 100 | 3825 | active |
| rdkit/rdkit RDKit is an open-source cheminformatics toolkit written in C++ with Python, Java, C#, and JavaScript wrappers. It provides core data struct… | 100 | 3575 | stable |
| Auburn/FastNoiseLite FastNoise Lite is a highly portable noise generation library offering 2D/3D Perlin, OpenSimplex2, Cellular (Voronoi), Value, and Cubic nois… | 62 | 3496 | stable |
| NLPIR-team/NLPIR NLPIR is a Chinese natural language processing platform (formerly ICTCLAS) providing an SDK with around twenty text analysis functions incl… | 75 | 3475 | active |
| scrtwpns/mixbox Mixbox is a color mixing library that treats RGB colors as real paint pigments using Kubelka & Munk theory, producing natural mixtures like… | 23 | 3465 | stable |
| slatedb/slatedb SlateDB is an embedded key-value storage engine implemented in Rust as a log-structured merge-tree (LSM) that persists all data to object s… | 92 | 3384 | active |
| yitter/IdGenerator A high-performance unique numeric ID generator library implementing an optimized Snowflake ('drift') algorithm, natively available in C#, J… | 30 | 3209 | active |
| apache/netbeans Apache NetBeans is a free, open-source integrated development environment (IDE) supporting Java, JavaScript, PHP, HTML5, CSS, and more, wit… | 94 | 3135 | active |
| VibiumDev/vibium Vibium is a browser automation tool built on WebDriver BiDi that gives AI coding agents a way to verify their work by driving a real browse… | 83 | 2928 | active |
| openctp/openctp openctp is a CTPAPI-compatible interface layer and trading platform ecosystem for Chinese futures and securities markets. It wraps broker c… | 75 | 2921 | active |
| bradvin/social-share-urls A multi-language collection of libraries and reference documentation for generating social media share URLs (e.g., Facebook, Twitter share … | 23 | 2831 | active |
| numaproj/numaflow Numaflow is a Kubernetes-native, serverless platform for running massively parallel data and streaming processing jobs. It lets developers … | 99 | 2828 | active |
| openalpr/openalpr OpenALPR is an open-source Automatic License Plate Recognition (ALPR) library written in C++ that analyzes images and video streams to dete… | 23 | 11456 | maintenance |
| Stan Stan is a C++ probabilistic programming library for full Bayesian inference via NUTS/Hamiltonian Monte Carlo, approximate inference via ADV… | 86 | 2763 | stable |
| Keystone Assembler Engine Keystone is a lightweight multi-platform, multi-architecture assembler framework implemented in C/C++ with bindings for many languages. It … | 64 | 2630 | active |
| vearch/vearch Vearch is a cloud-native distributed vector database for efficient similarity search of embedding vectors, supporting hybrid vector and sca… | 82 | 2323 | active |
| stevengj/nlopt NLopt is a C library providing a unified interface to many free/open-source algorithms for nonlinear local and global optimization, with or… | 80 | 2270 | stable |
| osqp/osqp OSQP is a C library for solving convex quadratic programs using an ADMM-based operator splitting method, with interfaces to Python, Julia, … | 50 | 2183 | stable |
| JetBrains/skiko Skiko is a Kotlin Multiplatform library that exposes the Skia graphics library APIs to Kotlin, along with rendering context and window mana… | 94 | 2182 | active |
| y-crdt/y-crdt Yrs is a high-performance Rust implementation of the Yjs CRDT algorithm and protocol, providing shared data types that automatically sync b… | 95 | 2152 | active |
| yuanfengyun/q_algorithm A multi-language library implementing efficient winning-hand (hu) detection algorithms for tile and card games, including Mahjong, Paohuzi,… | 32 | 2101 | active |
| thomaspoignant/go-feature-flag GO Feature Flag is an open-source, OpenFeature-native feature flag management system that runs self-hosted on your own infrastructure with … | 95 | 2100 | active |
| microcks/microcks Microcks is an open source, cloud native platform for API mocking and testing that turns OpenAPI, AsyncAPI, gRPC, GraphQL, Postman and Soap… | 98 | 2031 | active |
| validator/validator The Nu Html Checker (vnu) is the W3C/WHATWG-endorsed tool for validating HTML, CSS, and SVG documents. It runs as a command-line batch chec… | 88 | 1981 | stable |
| cossacklabs/themis Themis is a cross-platform, high-level cryptographic library providing ready-made building blocks for secure data storage, encrypted messag… | 75 | 1974 | stable |