Java Projects

100 Projects libraries and projects

• LeakCanary

  9.8 9.0 L3 Java

  Memory leak detection.

• EventBus

  9.8 5.7 L4 Java

  Simple publish/subscribe event bus.

• Arthas

  9.7 9.0 Java

  Allows to troubleshoot production issues for applications without modifying code or restarting servers.

• Seata

  9.7 9.3 Java

  Delivers high performance and easy to use distributed transaction services under a microservices architecture.

• Nacos

  9.6 9.5 Java

  Dynamic service discovery, configuration and service management platform for building cloud native applications.

• Sentinel

  9.6 8.6 Java

  Flow control component enabling reliability, resilience and monitoring for microservices.

• zipkin

  9.5 9.3 Java

  Distributed tracing system which gathers timing data needed to troubleshoot latency problems in microservice architectures.

• webmagic

  9.4 6.6 Java

  Scalable crawler with downloading, url management, content extraction and persistent.

• Graal

  9.3 10.0 Java

  Polyglot embeddable JVM. (GPL-2.0-only WITH Classpath-exception-2.0)

• bytecode-viewer

  9.2 4.4 Java

  Java 8 Jar & Android APK reverse engineering suite. (GPL-3.0-only)

• FizzBuzz Enterprise Edition

  9.2 0.0 Java

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

• Tink

  9.1 9.7 Java

  Provides a simple and misuse-proof API for common cryptographic tasks.

• JavaCV

  8.6 6.8 Java

  Java interface to OpenCV, FFmpeg, and more.

• Quarkus

  8.4 10.0 Java

  Quarkus: Supersonic Subatomic Java.

• Leaf

  8.3 5.5 Java

  Distributed ID generate service.

• Karate

  8.3 8.8 Java

  DSL that combine API test-automation, mocks and performance-testing making testing REST/HTTP services easy.

• Reflections

  8.1 3.7 Java

  Reflections scans your classpath, indexes the metadata, allows you to query it on runtime and may save and collect that information for many modules within your project.

• Armeria

  7.9 9.6 Java

  Asynchronous RPC/REST client/server library built on top of Java 8, Netty, HTTP/2, Thrift and gRPC.

• Apache Drill

  7.7 9.0 Java

  Distributed, schema on-the-fly, ANSI SQL query engine for Big Data exploration.

• Dragonwell8

  7.5 6.2 Shell

  Downstream version of OpenJDK optimized for online e-commerce, financial, logistics applications.

• unirest-java

  7.5 8.7 L2 Java

  Simplified, lightweight HTTP client library.

• jOOR

  7.4 5.3 Java

  jOOR stands for jOOR Object Oriented Reflection. It is a simple wrapper for the java.lang.reflect package.

• Java Faker

  7.3 8.0 Java

  A port of Ruby's fake data generator.

• OpenPDF

  7.0 8.6 Java

  Open-source iText fork. (LGPL-3.0-only & MPL-2.0)

• ClassGraph

  6.9 9.5 Java

  ClassGraph (formerly FastClasspathScanner) is an uber-fast, ultra-lightweight, parallelized classpath scanner and module scanner for Java, Scala, Kotlin and other JVM languages.

• RabbitMQ Java client

  6.7 7.3 Java

  RabbitMQ client.

• Jaeger client

  6.7 6.9 Java

  Jaeger client.

• p6spy

  6.4 5.2 Java

  Enables logging for all JDBC transactions without changes to the code.

• XChart

  6.3 8.0 Java

  A light-weight library for plotting data. Many customizable chart types are available.

• ReflectASM

  6.2 1.0 Java

  ReflectASM is a very small Java library that provides high performance reflection by using code generation.

• Open HTML to PDF

  5.8 8.2 Java

  Properly supports modern PDF standards based on flyingsaucer and Apache PDFBox.

• JFreeChart

  5.6 9.0 Java

  2D chart library for Swing, JavaFX and server-side applications.

• bucket4j

  5.6 7.6 Java

  Rate limiting library based on token-bucket algorithm.

• Simple Java Mail

  5.6 8.7 Java

  Mailing with a clean and fluent API.

• Elide

  5.6 9.1 Java

  Opinionated framework for JSON- or GraphQL-APIs based on a JPA data model.

• jasync-sql

  5.5 7.4 Kotlin

  Async DB driver for MySQL and PostgreSQL.

• Stripe

  5.5 9.0 Java

  Integration with the Stripe API

• Adopt Open JDK

  5.5 9.2 Shell

  OpenJDK builds which allows to choose between HotSpot and OpenJ9.

• Jansi

  5.4 3.4 Java

  ANSI escape codes to format console output.

• zt-exec

  5.1 1.3 Java

  Provides a unified API to Apache Commons Exec and ProcessBuilder.

• Parity

  5.1 4.0 Java

  Platform for trading venues.

• DSL-JSON

  4.9 5.9 Java

  JSON library with advanced compile time databinding.

• ServiceTalk

  4.8 9.2 Java

  Framework built on Netty with APIs tailored to specific protocols and support for multiple programming paradigms.

• Rocker

  4.8 5.0 Java

  Optimized, memory efficient and speedy template engine producing statically typed, plain objects.

• Mixin

  4.6 7.1 Java

  Manipulate bytecode at runtime using real Java code.

• springdoc-openapi

  4.5 9.7 Java

  Automates the generation of API documentation using Spring Boot projects.

• Objenesis

  4.5 4.8 Java

  Allows dynamic instantiation without default constructor, e.g. constructors which have required arguments, side effects or throw exceptions.

• cache2k

  4.4 7.5 Java

  In-memory high performance caching library.

• AkkaGRPC

  4.3 9.0 Scala

  Support for building streaming gRPC servers and clients on top of Akka Streams.

• NATS client

  4.2 7.4 Java

  NATS client.

• Mini2Dx

  4.1 8.5 Java

  Beginner-friendly, master-ready framework for rapidly prototyping and building 2D games.

• AranoDB

  4.0 7.9 Java

  ArangoDB Java driver.

• Philadelphia

  3.9 7.6 Java

  Low-latency financial information exchange.

• Kalium

  3.9 0.0 Java

  Binding for the Networking and Cryptography (NaCl) library.

• Doma 2

  3.9 9.1 Java

  Database access framework that verifies and generates source code at compile time using annotation processing as well as native SQL templates called two-way SQL.

• XMLUnit

  3.9 7.4 Java

  Simplifies testing for XML output.

• ASCII Table

  3.8 0.0 Java

  Library to draw tables in ASCII.

• Play WS

  3.8 8.3 Scala

  Typesafe client with reactive streams and caching.

• Permazen

  3.8 7.0 HTML

  Language-natural persistence layer.

• SAP Machine

  3.7 10.0 Java

  SAP's no-cost, rigorously tested and JCK-verified OpenJDK friendly fork. (GPL-2.0-only WITH Classpath-exception-2.0)

• Apache Qpid

  3.6 0.0 L1 Java

  Apache Qpid makes messaging tools that speak AMQP and support many languages and platforms.

• db-scheduler

  3.6 8.0 Java

  Persistent and cluster-friendly scheduler.

• jqwik

  3.5 9.6 Java

  Engine for property-based testing built on JUnit 5.

• Text-IO

  3.5 4.6 Java

  Aids the creation of full console-based applications.

• OpenTracing Toolbox

  3.5 8.6 Java

  Collection of libraries that build on top of OpenTracing and provide extensions and plugins to existing instrumentations.

• Drift

  3.4 4.1 Java

  Easy-to-use, annotation-based library for creating Thrift clients and serializable types.

• HyperMinHash-java

  3.3 2.4 Java

  Probabilistic data structure for computing union, intersection, and set cardinality in loglog space.

• image-comparison

  3.2 6.6 Java

  Compares two images with the same sizes and shows the differences visually by drawing rectangles.

• Lingua

  3.2 7.0 Kotlin

  Natural language detection library, especially suited for short paragraphs of text.

• zt-process-killer

  3.1 0.0 Java

  Stops processes started from Java or the system processes via PID.

• Jwks RSA

  3.1 5.0 Java

  JSON Web Key Set parser.

• TLS Channel

  3.0 7.3 Java

  Implements a ByteChannel interface over SSLEngine, enabling easy-to-use (socket-like) TLS.

• Square

  3.0 4.2 Java

  Integration with the Square API.

• Java ASCII Render

  2.8 4.4 Java

  Graphical primitives for the console.

• JobRunr

  2.8 9.2 Java

  Job scheduling library which utilizes lambdas for fire-and-forget, delayed and recurring jobs. Guarantees execution by single scheduler instance using optimistic locking. Has features for persistence, minimal dependencies and is embeddable.

• yGuard

  2.8 8.5 Java

  Obfuscation via renaming and shrinking.

• Orson-Charts

  2.8 7.8 Java

  Generates a wide variety of 3D charts that can be displayed with Swing and JavaFX or exported to PDF, SVG, PNG and JPEG. (GPL-3.0-only)

• microconfig

  2.7 8.5 Java

  Configuration system designed for microservices which helps to separate configuration from code. The configuration for different services can have common and specific parts and can be dynamically distributed.

• reMap

  2.7 6.8 Java

  Lambda and method handle-based mapping which requires code and not annotations if objects have different names.

• dOOv

  2.6 7.6 Java

  Provides fluent API for typesafe domain model validation and mapping. It uses annotations, code generation and a type safe DSL to make bean validation and mapping fast and easy.

• JCuda

  2.6 1.3 Java

  JCuda offers Java bindings for CUDA and CUDA-related libraries.

• javalin

  2.6 7.8 CSS

  Javalin is just a few thousand lines of code on top of Jetty, which means its performance is almost equivalent to pure Jetty.

• zerocell

  2.5 6.0 Java

  Annotation-based API for reading data from Excel sheets into POJOs with focus on reduced overhead.

• JayWire

  2.4 0.0 Java

  Lightweight dependency injection framework. (LGPL-3.0-only)

• Perses

  2.4 4.3 Java

  Dynamically injects failure/latency at the bytecode level according to principles of chaos engineering.

• PipelinR

  2.4 5.1 Java

  Small utility library for using handlers and commands with pipelines.

• restQL-core-java

  2.4 3.2 Java

  Microservice query language that fetches information from multiple services.

• Liberica JDK

  2.4 7.2 Dockerfile

  Built from OpenJDK, thoroughly tested and passed the JCK.

• SecurityBuilder

  2.3 0.0 Java

  Fluent Builder API for JCA and JSSE classes and especially X.509 certificates.

• Wisp

  2.3 3.9 Java

  Simple library with minimal footprint and straightforward API.

• jbock

  2.2 9.4 Java

  Typesafe, reflection-free, annotation based command-line parser.

• Synapses

  2.2 7.7 F#

  Lightweight library for neural networks.

• Beagle

  2.1 6.6 Clojure

  Stored full-text search query engine.

• hate

  2.1 2.5 Java

  Builds hypermedia-friendly objects according to HAL specification.

• ch.vorburger.exec

  2.0 4.5 Java

  Convenient API around Apache Commons Exec.

• jlink.online

  2.0 6.2 Go

  Builds optimized runtimes over HTTP.

• Modality

  2.0 8.2 Java

  Lightweight ORM with database reverse engineering features.

• Tail

  1.9 6.3 Java

  Enable infinite recursion using tail call optimization.

• QueryStream

  1.9 6.3 HTML

  Build JPA Criteria queries using a Stream-like API.

• Serenity BDD

  - -

  Automated Acceptance testing and reporting library that works with Cucumber, JBehave and JUnit to make it easier to write high quality executable specifications.

* Code Quality Rankings and insights are calculated and provided by Lumnify.
They vary from L1 to L5 with "L5" being the highest. Visit our partner's website for more details.

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