301.codelibs / fess
Open-source, self-hosted enterprise & site search server built on OpenSearch. Crawls web / file / DB / cloud sources, 20+ languages, REST API, and AI/RAG & semantic search. Apache-2.0.
+5 stars
from 1,137 · score 1.79
Trending repositories
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301–400 of 545 by Attention Score · Oct 4, 2026 – Nov 2, 2026 (UTC)
302.HDFGroup / hdf5
Official HDF5® Library Repository
+5 stars
from 989 · score 1.79
303.cqframework / clinical_quality_language
Clinical Quality Language (CQL) is an HL7 specification for the expression of clinical knowledge that can be used within both the Clinical Decision Support (CDS) and Clinical Quality Measurement (CQM) domains. This repository contains complementary tooling in support of that specification.
+5 stars
from 332 · score 1.79
304.lopcode / vips-ffm
Fast, safe, complete libvips bindings for image processing in Java / JVM projects
+5 stars
from 141 · score 1.79
305.focus-shift / jollyday
Jollyday - A worldwide public holidays library
+5 stars
from 138 · score 1.79
306.devtoolsd / DevBooks
A curated, opinionated list of best-in-class books for modern software development, popular programming languages, and AI/ML.
+5 stars
from 98 · score 1.79
307.seleniumboot / selenium-boot
The Spring Boot of Selenium — conventions and sensible defaults for Java test automation, without hiding WebDriver.
+5 stars
from 12 · score 1.79
308.hollischuang / toBeTopJavaer
To Be Top Javaer - Java工程师成神之路
+4 stars
from 25,282 · score 1.61
309.microsoft / CNTKArchived
Microsoft Cognitive Toolkit (CNTK), an open source deep-learning toolkit
+4 stars
from 17,579 · score 1.61
310.orhanobut / logger
✔️ Simple, pretty and powerful logger for android
+4 stars
from 13,826 · score 1.61
311.code4craft / webmagic
A scalable web crawler framework for Java.
+4 stars
from 11,666 · score 1.61
312.androidannotations / androidannotationsArchived
Fast Android Development. Easy maintainance.
+4 stars
from 10,960 · score 1.61
313.dropwizard / metrics
:chart_with_upwards_trend: Capturing JVM- and application-level metrics. So you know what's going on.
+4 stars
from 7,842 · score 1.61
314.graphql-java / graphql-java
GraphQL Java implementation
+4 stars
from 6,218 · score 1.61
315.btraceio / btrace
Production-safe dynamic tracing and diagnostics for Java applications—attach to live JVMs with no restart or recompilation.
+4 stars
from 5,993 · score 1.61
316.nisrulz / android-tips-tricks
:ballot_box_with_check: [Cheatsheet] Tips and tricks for Android Development
+4 stars
from 4,741 · score 1.61
317.networknt / light-4j
A fast, lightweight and more productive microservices framework
+4 stars
from 3,672 · score 1.61
318.TakuSemba / Spotlight
Android Library that lights items for tutorials or walk-throughs etc...
+4 stars
from 3,668 · score 1.61
319.mhrimaz / AwesomeJavaFX
A curated list of awesome JavaFX libraries, books, frameworks, etc...
+4 stars
from 3,372 · score 1.61
320.bonigarcia / webdrivermanager
Automated driver management and other helper features for Selenium WebDriver in Java
+4 stars
from 2,688 · score 1.61
321.TakuSemba / MultiSnapRecyclerView
Android library for multiple snapping of RecyclerView
+4 stars
from 2,487 · score 1.61
322.moquette-io / moquette
Java MQTT lightweight broker
+4 stars
from 2,458 · score 1.61
323.apache / activemq
Apache ActiveMQ
+4 stars
from 2,458 · score 1.61
324.amaembo / streamex
Enhancing Java Stream API
+4 stars
from 2,290 · score 1.61
325.Yalantis / Horizon
Horizon - Simple visual equaliser for Android
+4 stars
from 2,244 · score 1.61
326.appium / java-client
Java language binding for writing Appium Tests, conforms to W3C WebDriver Protocol
+4 stars
from 1,280 · score 1.61
327.kaitoy / pcap4j
A Java library for capturing, crafting, and sending packets.
+4 stars
from 1,238 · score 1.61
328.MobiVM / robovm
Ahead of time compiler for JVM bytecode targetting iOS, Mac OSX and Linux
+4 stars
from 1,043 · score 1.61
329.EngineHub / WorldGuard
🛡️ Protect your Minecraft server and lets players claim areas
+4 stars
from 938 · score 1.61
330.odnoklassniki / one-nio
Unconventional I/O library for Java
+4 stars
from 725 · score 1.61
331.apache / openmeetings
Mirror of Apache Openmeetings
+4 stars
from 684 · score 1.61
332.SpongePowered / Configurate
A simple configuration library for Java applications providing a node structure, a variety of formats, and tools for transformation
+4 stars
from 464 · score 1.61
333.tinystruct / tinystruct
A lightweight, modular Java application framework for web and CLI development, designed for AI integration and plugin-based architecture. Enabling developers to create robust solutions with ease for building efficient and scalable applications.
+4 stars
from 359 · score 1.61
334.jstachio / jstachio
Java type safe statically compiled mustache
+4 stars
from 334 · score 1.61
335.tink-crypto / tink-java
Java implementation of Tink
+4 stars
from 307 · score 1.61
336.Atsumeru-xyz / Atsumeru
Free self-hosted mangas/comics/light novels media server
+4 stars
from 191 · score 1.61
337.wasabeef / recyclerview-animators
An Android Animation library which easily add itemanimator to RecyclerView items.
+3 stars
from 11,525 · score 1.39
338.realm / realm-java
Realm is a mobile database: a replacement for SQLite & ORMs
+3 stars
from 11,447 · score 1.39
339.kaushikgopal / RxJava-Android-Samples
Learning RxJava for Android by example
+3 stars
from 7,485 · score 1.39
340.Bearded-Hen / Android-Bootstrap
Bootstrap style widgets for Android, with Glyph Icons
+3 stars
from 7,207 · score 1.39
341.joelittlejohn / jsonschema2pojo
Generate Java types from JSON or JSON Schema and annotate those types for data-binding with Jackson, Gson, etc
+3 stars
from 6,376 · score 1.39
342.coobird / thumbnailator
Thumbnailator - a thumbnail generation library for Java
+3 stars
from 5,426 · score 1.39
343.gaia-pipeline / gaiaArchived
Build powerful pipelines in any programming language.
+3 stars
from 5,210 · score 1.39
344.Yalantis / Side-Menu.Android
Side menu with some categories to choose.
+3 stars
from 5,196 · score 1.39
345.diogobernardino / williamchart
Android Library to rapidly develop attractive and insightful charts in android applications.
+3 stars
from 5,091 · score 1.39
346.DiUS / java-faker
Brings the popular ruby faker gem to Java
+3 stars
from 4,898 · score 1.39
347.bytedeco / javacpp
The missing bridge between Java and native C++
+3 stars
from 4,703 · score 1.39
348.aws / aws-sdk-java
The official AWS SDK for Java 1.x (In Maintenance Mode, End-of-Life on 12/31/2025). The AWS SDK for Java 2.x is available here: https://github.com/aws/aws-sdk-java-v2/
+3 stars
from 4,200 · score 1.39
349.chriswhocodes / jitwatch
Log analyser / visualiser for Java HotSpot JIT compiler. Inspect inlining decisions, hot methods, bytecode, and assembly. View results in the JavaFX user interface.
+3 stars
from 3,310 · score 1.39
350.mongodb / mongo-java-driver
The official MongoDB drivers for Java, Kotlin, and Scala
+3 stars
from 2,659 · score 1.39
351.vsch / flexmark-java
CommonMark/Markdown Java parser with source level AST. CommonMark 0.28, emulation of: pegdown, kramdown, markdown.pl, MultiMarkdown. With HTML to MD, MD to PDF, MD to DOCX conversion modules.
+3 stars
from 2,635 · score 1.39
352.sarxos / webcam-capture
The goal of this project is to allow integrated or USB-connected webcams to be accessed directly from Java. Using provided libraries users are able to read camera images and detect motion. Main project consist of several sub projects - the root one, which contains required classes, build-in webcam driver compatible with Windows, Linux and Mac OS, which can stream images as fast as your camera can serve them (up to 50 FPS). Main project can be used standalone, but user is able to replace build-in driver with different one - such as OpenIMAJ, GStreamer, V4L4j, JMF, LTI-CIVIL, FMJ, etc.
+3 stars
from 2,354 · score 1.39
353.prometheus / client_java
Prometheus instrumentation library for JVM applications
+3 stars
from 2,288 · score 1.39
354.speedment / speedment
Speedment is a Stream ORM Java Toolkit and Runtime
+3 stars
from 2,091 · score 1.39
355.Netflix / genie
Distributed Big Data Orchestration Service
+3 stars
from 1,765 · score 1.39
356.Softmotions / ejdb
:snowboarder: EJDB2 — Embeddable JSON Database engine C library. Simple XPath like query language (JQL).
+3 stars
from 1,484 · score 1.39
357.anvil-ui / anvil
Minimal UI library for Android inspired by React
+3 stars
from 1,436 · score 1.39
358.rabbitmq / rabbitmq-java-client
RabbitMQ Java client
+3 stars
from 1,312 · score 1.39
359.tony19 / logback-android
📄The reliable, generic, fast and flexible logging framework for Android
+3 stars
from 1,264 · score 1.39
360.JetBrains / xodus
Transactional schema-less embedded database used by JetBrains YouTrack and JetBrains Hub.
+3 stars
from 1,258 · score 1.39
361.sirixdb / sirix
SirixDB is an an embeddable, bitemporal, append-only database system and event store, storing immutable lightweight snapshots. It keeps the full history of each resource. Every commit stores a space-efficient snapshot through structural sharing. It is log-structured and never overwrites data. SirixDB uses a novel page-level versioning approach.
+3 stars
from 1,218 · score 1.39
362.javapackager / JavaPackager
Gradle/Maven plugin to package Java applications as native Windows, MacOS, or Linux executables and create installers for them.
+3 stars
from 1,195 · score 1.39
363.linkedin / brooklin
An extensible distributed system for reliable nearline data streaming at scale
+3 stars
from 969 · score 1.39
364.chronoxor / FastBinaryEncoding
Fast Binary Encoding is ultra fast and universal serialization solution for C++, C#, Go, Java, JavaScript, Kotlin, Python, Ruby, Swift
+3 stars
from 960 · score 1.39
365.Randgalt / record-builder
Record builder generator for Java records
+3 stars
from 932 · score 1.39
366.dhatim / fastexcel
Generate and read big Excel files quickly
+3 stars
from 910 · score 1.39
367.ical4j / ical4j
A Java library for parsing and building iCalendar data models
+3 stars
from 837 · score 1.39
368.apache / wicket
Apache Wicket - Component-based Java web framework
+3 stars
from 796 · score 1.39
369.arianne / stendhal
Stendhal is a fun friendly and free multiplayer online adventure game with an old school feel.
+3 stars
from 703 · score 1.39
370.nats-io / nats.java
Java client for NATS
+3 stars
from 680 · score 1.39
371.SAP / SapMachine
An OpenJDK release maintained and supported by SAP
+3 stars
from 624 · score 1.39
372.dicoogle / dicoogle
Dicoogle - Open Source PACS
+3 stars
from 532 · score 1.39
373.mikeakohn / java_grinder
Compile Java byte-code to native CPU's.
+3 stars
from 529 · score 1.39
374.OpenOLAT / OpenOLAT
Learning Management System OpenOlat
+3 stars
from 446 · score 1.39
375.bsommerfeld / pathetic
The Java pathfinder that ended the era of “good enough”
+3 stars
from 392 · score 1.39
376.sashirestela / simple-openai
A Java library to use the OpenAI Api in the simplest possible way.
+3 stars
from 378 · score 1.39
377.eclipse-platform / eclipse.platform
Eclipse Platform - a comprehensive set of frameworks and common services that collectively provide a powerful software development infrastructure.
+3 stars
from 168 · score 1.39
378.tommyettinger / textratypist
Augmented text display system for libGDX, based on typing-label
+3 stars
from 136 · score 1.39
379.PicnicSupermarket / error-prone-support
Error Prone extensions: extra bug checkers and a large battery of Refaster rules.
+3 stars
from 41 · score 1.39
380.CoatiSoftware / SourcetrailArchived
Sourcetrail - free and open-source interactive source explorer
+2 stars
from 16,462 · score 1.10
381.codota / TabNineArchived
AI Code Completions
+2 stars
from 10,762 · score 1.10
382.google / android-classysharkArchived
Android and Java bytecode viewer
+2 stars
from 7,546 · score 1.10
383.jboss-javassist / javassist
Java bytecode engineering toolkit
+2 stars
from 4,231 · score 1.10
384.BayesWitnesses / m2cgen
Transform ML models into a native code (Java, C, Python, Go, JavaScript, Visual Basic, C#, R, PowerShell, PHP, Dart, Haskell, Ruby, F#, Rust) with zero dependencies
+2 stars
from 2,997 · score 1.10
385.google / binnaviArchived
BinNavi is a binary analysis IDE that allows to inspect, navigate, edit and annotate control flow graphs and call graphs of disassembled code.
+2 stars
from 2,885 · score 1.10
386.r0adkll / SlidrArchived
Easily add slide to dismiss functionality to an Activity
+2 stars
from 2,642 · score 1.10
387.apache / logging-flume
Apache Flume is a distributed, reliable, and available service for efficiently collecting, aggregating, and moving large amounts of log-like data
+2 stars
from 2,570 · score 1.10
388.p6spy / p6spy
P6Spy is a framework that enables database data to be seamlessly intercepted and logged with no code changes to the application.
+2 stars
from 2,231 · score 1.10
389.indy256 / codelibrary
:gem:Collection of algorithms and data structures
+2 stars
from 2,023 · score 1.10
390.fabric8io / docker-maven-plugin
Maven plugin for running and creating Docker images
+2 stars
from 1,929 · score 1.10
391.intellij-elixir / intellij-elixir
Elixir plugin for JetBrain's IntelliJ Platform (including Rubymine)
+2 stars
from 1,897 · score 1.10
392.jphp-group / jphp
JPHP - an implementation of PHP on Java VM
+2 stars
from 1,710 · score 1.10
393.spring-projects / spring-integration
Spring Integration provides an extension of the Spring programming model to support the well-known Enterprise Integration Patterns (EIP)
+2 stars
from 1,628 · score 1.10
394.ihsanbal / LoggingInterceptor
An OkHttp interceptor which has pretty logger for request and response. +Mock support
+2 stars
from 1,360 · score 1.10
395.PatMartin / Dex
Dex : The Data Explorer -- A data visualization tool written in Java/Groovy/JavaFX capable of powerful ETL and publishing web visualizations.
+2 stars
from 1,315 · score 1.10
396.bbottema / simple-java-mail
Simple API, Complex Emails (Jakarta Mail smtp wrapper)
+2 stars
from 1,291 · score 1.10
397.rampatra / jbot
Make Slack and Facebook Bots in Java.
+2 stars
from 1,208 · score 1.10
398.uncomplicate / neanderthal
Fast Clojure Matrix Library
+2 stars
from 1,130 · score 1.10
399.hivemq / hivemq-mqtt-client
HiveMQ MQTT Client is an MQTT 5.0 and MQTT 3.1.1 compatible and feature-rich high-performance Java client library with different API flavours and backpressure support
+2 stars
from 1,123 · score 1.10
400.leangen / graphql-spqr
Build a GraphQL service in seconds
+2 stars
from 1,103 · score 1.10