☕ Awesome Java

Projects 1–60 of 758, most starred first

• iluwatar/java-design-patterns on GitHub, opens in a new tab

  94.6Kstars

  Implementation and explanation of the most common design patterns.

  Java·Other·active·21 hours ago

• spring-projects/spring-boot on GitHub, opens in a new tab

  81.3Kstars

  ★ 81.3k Apache-2.0 🟢Framework for creating stand-alone, production-grade Spring applications.

  Java·Apache License 2.0·active·yesterday

• elastic/elasticsearch on GitHub, opens in a new tab

  77.8Kstars

  ★ 77.8k 🟢Distributed, multitenant-capable, full-text search engine with a RESTful web interface and schema-free JSON documents.

  Java·Other·active·3 hours ago

• NationalSecurityAgency/ghidra on GitHub, opens in a new tab

  72.4Kstars

  ★ 72.4k Apache-2.0 🟢Extensible software reverse-engineering framework with Java APIs and scripting.

  Java·Apache License 2.0·active·7 hours ago

• protocolbuffers/protobuf on GitHub, opens in a new tab

  71.7Kstars

  ★ 71.7k 🟢Google's data interchange format.

  C++·Other·active·6 hours ago

• spring-projects/spring-framework on GitHub, opens in a new tab

  60.2Kstars

  ★ 60.2k Apache-2.0 🟢Comprehensive application framework for building Java applications.

  Java·Apache License 2.0·active·4 days ago

• google/guava on GitHub, opens in a new tab

  51.9Kstars

  ★ 51.9k Apache-2.0 🟢Collections, caching, primitives support, concurrency libraries, common annotations, string processing, I/O, and more.

  Java·Apache License 2.0·active·3 hours ago

• skylot/jadx on GitHub, opens in a new tab

  50.1Kstars

  ★ 50.1k Apache-2.0 🟢Dex-to-Java decompiler with command-line and graphical interfaces.

  Java·Apache License 2.0·active·2 weeks ago

• ReactiveX/RxJava on GitHub, opens in a new tab

  48.2Kstars

  ★ 48.2k Apache-2.0 🟢Allows for composing asynchronous and event-based programs using observable sequences.

  Java·Apache License 2.0·active·7 hours ago

• lysine-dev/okhttp on GitHub, opens in a new tab

  47Kstars

  ★ 47.0k Apache-2.0 🟢HTTP client for the JVM, Android and GraalVM.

  Kotlin·Apache License 2.0·active·just now

• lysine-dev/retrofit on GitHub, opens in a new tab

  43.9Kstars

  ★ 43.9k Apache-2.0 🟢Typesafe REST client.

  Java·Apache License 2.0·active·17 hours ago

• apache/dubbo on GitHub, opens in a new tab

  41.5Kstars

  ★ 41.5k Apache-2.0 🟢High-performance RPC framework.

  Java·Apache License 2.0·active·4 days ago

• alibaba/arthas on GitHub, opens in a new tab

  37.5Kstars

  ★ 37.5k Apache-2.0 🟢Allows to troubleshoot production issues for applications without modifying code or restarting servers.

  Java·Apache License 2.0·active·4 days ago

• keycloak/keycloak on GitHub, opens in a new tab

  36.2Kstars

  ★ 36.2k Apache-2.0 🟢Integrated SSO and IDM for browser apps and RESTful web services.

  Java·Apache License 2.0·active·3 hours ago

• netty/netty on GitHub, opens in a new tab

  35Kstars

  ★ 35.0k Apache-2.0 🟢Framework for building high-performance network applications.

  Java·Apache License 2.0·active·7 hours ago

• bumptech/glide on GitHub, opens in a new tab

  35Kstars

  ★ 35.0k 🟢Image loading and caching library for Android focused on smooth scrolling.

  Java·Other·active·9 hours ago

• SeleniumHQ/selenium on GitHub, opens in a new tab

  34.4Kstars

  ★ 34.4k Apache-2.0 🟢Browser automation framework and ecosystem.

  Java·Apache License 2.0·active·5 hours ago

• zxing/zxing on GitHub, opens in a new tab

  34.1Kstars

  ★ 34.1k Apache-2.0 🟢Multi-format 1D/2D barcode image processing library.

  Java·Apache License 2.0·active·9 hours ago

• apache/kafka on GitHub, opens in a new tab

  33.5Kstars

  ★ 33.5k Apache-2.0 🟢High-throughput distributed messaging system.

  Java·Apache License 2.0·active·10 hours ago

• alibaba/nacos on GitHub, opens in a new tab

  33.3Kstars

  ★ 33.3k Apache-2.0 🟢Dynamic service discovery, configuration and service management platform for building cloud native applications.

  Java·Apache License 2.0·active·5 hours ago

• conductor-oss/conductor on GitHub, opens in a new tab

  32.1Kstars

  ★ 32.1k Apache-2.0 🟢Event-driven workflow engine for distributed applications and AI agents.

  Java·Apache License 2.0·active·yesterday

• xuxueli/xxl-job on GitHub, opens in a new tab

  30.5Kstars

  ★ 30.5k GPL-3.0 🟢Distributed task scheduling platform with centralized administration and execution monitoring.

  Java·GNU General Public License v3.0·active·4 weeks ago

• opendataloader-project/opendataloader-pdf on GitHub, opens in a new tab

  28.5Kstars

  ★ 28.4k Apache-2.0 🟢Parses PDFs into structured Markdown, JSON and HTML through a Java API and command line.

  Java·Apache License 2.0·active·16 hours ago

• OpenAPITools/openapi-generator on GitHub, opens in a new tab

  26.7Kstars

  ★ 26.7k Apache-2.0 🟢Allows generation of API client libraries, SDKs, server stubs, documentation and configuration automatically given an OpenAPI Spec.

  Java·Apache License 2.0·active·6 hours ago

• google/flatbuffers on GitHub, opens in a new tab

  26.3Kstars

  ★ 26.3k Apache-2.0 🟢Memory-efficient serialization library that can access serialized data without unpacking and parsing it.

  C++·Apache License 2.0·active·6 days ago

• apache/flink on GitHub, opens in a new tab

  26.3Kstars

  ★ 26.3k Apache-2.0 🟢Fast, reliable, large-scale data processing engine.

  Java·Apache License 2.0·active·5 hours ago

• apache/incubator-seata on GitHub, opens in a new tab

  26Kstars

  ★ 26.0k Apache-2.0 🟢Delivers high performance and easy to use distributed transaction services under a microservices architecture.

  Java·Apache License 2.0·active·2 days ago

• bazelbuild/bazel on GitHub, opens in a new tab

  25.7Kstars

  ★ 25.7k Apache-2.0 🟢Tool from Google that builds code quickly and reliably.

  Java·Apache License 2.0·active·3 hours ago

• libgdx/libgdx on GitHub, opens in a new tab

  25.3Kstars

  ★ 25.3k Apache-2.0 🟢All-round cross-platform, high-level framework.

  Java·Apache License 2.0·active·5 days ago

• redisson/redisson on GitHub, opens in a new tab

  24.4Kstars

  ★ 24.4k Apache-2.0 🟢Allows for distributed and scalable data structures on top of a Redis server.

  Java·Apache License 2.0·active·3 days ago

• google/gson on GitHub, opens in a new tab

  24.2Kstars

  ★ 24.2k Apache-2.0 🟢Serializes objects to JSON and vice versa. Good performance with on-the-fly usage.

  Java·Apache License 2.0·active·3 days ago

• EnterpriseQualityCoding/FizzBuzzEnterpriseEdition on GitHub, opens in a new tab

  23.8Kstars

  No-nonsense implementation of FizzBuzz made by serious businessmen for serious business purposes. (No explicit license)

  Java·slowing·2 years ago

• openjdk/jdk on GitHub, opens in a new tab

  23.2Kstars

  ★ 23.2k GPL-2.0 🟢Open JDK community home.

  Java·GNU General Public License v2.0·active·3 hours ago

• alibaba/Sentinel on GitHub, opens in a new tab

  23.1Kstars

  ★ 23.1k Apache-2.0 🟢Flow control component enabling reliability, resilience and monitoring for microservices.

  Java·Apache License 2.0·active·3 months ago

• apache/rocketmq on GitHub, opens in a new tab

  22.6Kstars

  ★ 22.6k Apache-2.0 🟢Fast, reliable, and scalable distributed messaging platform.

  Java·Apache License 2.0·active·2 days ago

• jhipster/generator-jhipster on GitHub, opens in a new tab

  22.4Kstars

  ★ 22.4k Apache-2.0 🟢Yeoman source code generator for Spring Boot and AngularJS.

  TypeScript·Apache License 2.0·active·4 hours ago

• oracle/graal on GitHub, opens in a new tab

  21.7Kstars

  ★ 21.7k 🟢Polyglot embeddable JVM. (GPL-2.0-only WITH Classpath-exception-2.0)

  Java·Other·active·4 hours ago

• elastic/kibana on GitHub, opens in a new tab

  21.2Kstars

  ★ 21.2k 🟢Analyzes and visualizes log files. Some features require payment.

  TypeScript·Other·active·3 hours ago

• brettwooldridge/HikariCP on GitHub, opens in a new tab

  21.2Kstars

  ★ 21.2k Apache-2.0 🟢High-performance JDBC connection pool.

  Java·Apache License 2.0·active·2 months ago

• apache/shardingsphere on GitHub, opens in a new tab

  20.8Kstars

  ★ 20.8k Apache-2.0 🟢Distributed SQL transaction & query engine that allows for data sharding, scaling, encryption, and more on any database.

  Java·Apache License 2.0·active·7 hours ago

• JetBrains/intellij-community on GitHub, opens in a new tab

  20.5Kstars

  ★ 20.5k 🟢Supports many JVM languages and provides good options for Android development. The commercial edition targets the enterprise sector.

  Java·Other·active·3 hours ago

• mybatis/mybatis-3 on GitHub, opens in a new tab

  20.4Kstars

  ★ 20.4k Apache-2.0 🟢Couples objects with stored procedures or SQL statements.

  Java·Apache License 2.0·active·15 hours ago

• antlr/antlr4 on GitHub, opens in a new tab

  19Kstars

  ★ 19.0k BSD-3-Clause 🟠Complex full-featured framework for top-down parsing.

  Java·BSD 3-Clause "New" or "Revised" License·steady·6 months ago

• gradle/gradle on GitHub, opens in a new tab

  18.8Kstars

  ★ 18.8k Apache-2.0 🟢Incremental builds programmed via Groovy instead of declaring XML. Works well with Maven's dependency management.

  Groovy·Apache License 2.0·active·3 hours ago

• LMAX-Exchange/disruptor on GitHub, opens in a new tab

  18.4Kstars

  ★ 18.4k Apache-2.0 🔴Inter-thread messaging library.

  Java·Apache License 2.0·slowing·last year

• ben-manes/caffeine on GitHub, opens in a new tab

  17.8Kstars

  ★ 17.8k Apache-2.0 🟢High-performance, near-optimal caching library.

  Java·Apache License 2.0·active·9 hours ago

• google/dagger on GitHub, opens in a new tab

  17.7Kstars

  ★ 17.7k Apache-2.0 🟢Compile-time injection framework without reflection.

  Java·Apache License 2.0·active·5 days ago

• baomidou/mybatis-plus on GitHub, opens in a new tab

  17.5Kstars

  ★ 17.5k Apache-2.0 🟢A powerful enhanced toolkit of MyBatis for simplifying development.

  Java·Apache License 2.0·active·2 weeks ago

• openzipkin/zipkin on GitHub, opens in a new tab

  17.5Kstars

  ★ 17.5k Apache-2.0 🟢Distributed tracing system which gathers timing data needed to troubleshoot latency problems in microservice architectures.

  Java·Apache License 2.0·active·2 weeks ago

• questdb/questdb on GitHub, opens in a new tab

  17.3Kstars

  ★ 17.3k Apache-2.0 🟢High-performance SQL database for time series. Supports InfluxDB line protocol, PostgreSQL wire protocol, and REST.

  Java·Apache License 2.0·active·3 hours ago

• winterbe/java8-tutorial on GitHub, opens in a new tab

  16.7Kstars

  Popular Java 8 guide.

  Java·MIT License·dormant·3 years ago

• prestodb/presto on GitHub, opens in a new tab

  16.7Kstars

  ★ 16.7k Apache-2.0 🟢Distributed SQL query engine for large data sources.

  Java·Apache License 2.0·active·12 hours ago

• cryptomator/cryptomator on GitHub, opens in a new tab

  15.9Kstars

  ★ 15.9k GPL-3.0 🟢Multiplatform, transparent, client-side encryption of files in the cloud.

  Java·GNU General Public License v3.0·active·2 weeks ago

• quarkusio/quarkus on GitHub, opens in a new tab

  15.8Kstars

  ★ 15.8k Apache-2.0 🟢Kubernetes stack tailored for the HotSpot and Graal VM.

  Java·Apache License 2.0·active·6 hours ago

• apache/doris on GitHub, opens in a new tab

  15.8Kstars

  ★ 15.8k Apache-2.0 🟢Distributed SQL database for real-time analytics.

  C++·Apache License 2.0·active·4 hours ago

• facebook/infer on GitHub, opens in a new tab

  15.7Kstars

  ★ 15.7k MIT 🟢Modern static analysis tool for verifying the correctness of code.

  OCaml·MIT License·active·5 days ago

• Konloch/bytecode-viewer on GitHub, opens in a new tab

  15.6Kstars

  ★ 15.6k GPL-3.0 🟢Java 8 Jar & Android APK reverse engineering suite.

  Java·GNU General Public License v3.0·active·last month

• mockito/mockito on GitHub, opens in a new tab

  15.4Kstars

  ★ 15.4k MIT 🟢Mocking framework that lets you write tests with a clean and simple API.

  Java·MIT License·active·7 days ago

• apache/pulsar on GitHub, opens in a new tab

  15.3Kstars

  ★ 15.3k Apache-2.0 🟢Distributed pub/sub-messaging system.

  Java·Apache License 2.0·active·5 hours ago

• elastic/logstash on GitHub, opens in a new tab

  14.9Kstars

  ★ 14.9k 🟢Tool for managing log files.

  Java·Other·active·4 hours ago