Trending repositories

1.termux / termux-app

Termux - a terminal emulator application for Android OS extendible by variety of packages.

• android
• terminal
• termux
• linux
• hacktoberfest

2.elastic / elasticsearch

Free and Open Source, Distributed, RESTful Search Engine

• elasticsearch
• java
• search-engine

3.aklivity / zilla

🦎 A lightweight, streaming-native, multi-protocol gateway for AI, APIs, and real-time data. Route LLM requests across providers, govern MCP tools, and connect Kafka, MQTT, and HTTP through one high-performance engine with shared security and observability.

• kafka
• rest
• server-sent-events
• streaming-api
• grpc
• mqtt
• +9 more

4.OtterMind / Chat2DB

Chat2DB is a free, cross-platform, local-first database client and SQL workspace for developers, DBAs, analysts, and data teams. Connect to 40+ databases, manage data, edit and run SQL, and use your own AI model to generate, explain, and optimize queries. Available on desktop, web, Docker, and CLI, with MCP support.

• ai
• mysql
• oracle
• postgresql
• redis
• database
• +14 more

5.LawnchairLauncher / lawnchair

No clever tagline needed.

• android
• launcher
• launcher3
• app
• kotlin
• hacktoberfest
• +1 more

6.iluwatar / java-design-patterns

Design patterns implemented in Java

• java
• principles
• design-patterns
• awesome-list
• snippets
• snippets-collection
• +2 more

7.thingsboard / thingsboard

All-in-one IoT Platform - Device management, data collection, processing and visualization.

• visualization
• iot
• iot-platform
• mqtt
• middleware
• thingsboard
• +12 more

8.dataease / dataease

🔥 人人可用的开源 BI 工具，数据可视化神器。An open-source BI tool alternative to Tableau.

• tableau
• data-visualization
• superset
• apache-doris
• data-analysis
• business-intelligence
• +2 more

9.gsantner / markor

Text editor - Notes, ToDo & Filemanager (for Android) - Markdown, todo.txt, plaintext, math, ..

• markdown
• markdown-editor
• android-app
• editor
• todo
• todotxt
• +14 more

10.JetBrains / intellij-community

IntelliJ IDEA & IntelliJ Platform

• intellij
• intellij-platform
• ide
• code-editor
• intellij-community

11.PaperMC / Paper

The most widely used, high performance Minecraft server that aims to fix gameplay and mechanics inconsistencies

• minecraft
• bukkit
• minecraft-server
• minecraft-api
• minecraft-performance
• tacos
• +4 more

12.osmandapp / OsmAnd

OsmAnd

13.metersphere / metersphere

MeterSphere 是新一代的开源持续测试工具，内置 AI 助手，让软件测试工作更简单、更高效，不再成为持续交付的瓶颈。

• jmeter
• testing
• test-automation
• api-testing
• testcase
• testlink
• +5 more

14.openremote / core

100% open-source IoT Platform - Integrate your devices, add intelligence, build custom apps

• iot-platform
• iot
• energy
• building
• mqtt
• smartcity
• +14 more

15.CaffeineMC / sodium

A high-performance rendering engine replacement for Minecraft, which greatly improves frame rates and reduces micro-stutter

• minecraft
• fabric
• neoforge

16.openrocket / openrocket

Model-rocketry aerodynamics and trajectory simulation software

• aerospace
• flight-simulator
• java
• modeling
• optimization
• rocket
• +3 more

17.MinecraftForge / MinecraftForge

Modifications to the Minecraft base files to assist in compatibility between mods. New Discord: https://discord.minecraftforge.net/

• java
• forge
• minecraft
• mod

18.supertokens / supertokens-core

Open source alternative to Auth0 / Firebase Auth / AWS Cognito

• authentication
• session-management
• login
• supertokens
• java
• signin
• +13 more

19.oracle / graal

GraalVM compiles applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀

• java
• aot
• compiler
• graalvm

20.alibaba / DataX

DataX是阿里云DataWorks数据集成的开源版本。

21.arduino / Arduino

Arduino IDE 1.x

• arduino
• ide

22.yacy / yacy_search_server

Distributed Peer-to-Peer Web Search Engine and Intranet Search Appliance

• decentralized
• p2p
• p2p-network
• privacy
• privacy-protection
• search-engine
• +7 more

23.elastic / logstash

Logstash - transport and process your logs, events, or other data

• etl-framework
• streaming
• logging
• java
• jruby
• real-time-processing

24.rstudio / rstudio

RStudio is an integrated development environment (IDE) for R

25.codenameone / CodenameOne

Open-source framework for native apps from one Java codebase, with a custom-rendered UI you control across iOS, Android, desktop, web, and watches.

• cross-platform
• java
• kotlin
• android
• ios
• app-framework
• +14 more

26.geoserver / geoserver

Official GeoServer repository

• web
• mapping
• web-mapping
• java
• geoserver
• wms
• +4 more

27.pmd / pmd

An extensible multilanguage static code analyzer.

• code-analysis
• code-quality
• static-analysis
• static-code-analysis
• linter
• java
• +4 more

28.jobrunr / jobrunr

An extremely easy way to perform background processing in Java. Backed by persistent storage. Open and free for commercial use.

• java-8
• background-jobs
• parallel-processing
• scheduling
• scheduled-jobs
• java
• +3 more

29.liquibase / liquibase

Main Liquibase Source

• java
• liquibase
• database-migrations
• java-library
• continuous-delivery
• devops
• +11 more

30.opentripplanner / OpenTripPlanner

An open source multi-modal trip planner

31.AppliedEnergistics / Applied-Energistics-2

A Minecraft Mod about Matter, Energy and using them to conquer the world..

• minecraft
• minecraft-mod
• appliedenergistics
• applied-energistics
• forge
• java
• +3 more

32.google / google-java-format

Reformats Java source code to comply with Google Java Style.

• java
• formatter

33.Tencent / matrix

Matrix is a plugin style, non-invasive APM system developed by WeChat.

• android
• apm-client
• wechat

34.EngineHub / WorldEdit

🗺️ Minecraft map editor and mod

• worldedit
• java
• minecraft
• forge
• bukkit
• sponge
• +3 more

35.jOOQ / jOOQ

jOOQ is the best way to write SQL in Java

• jooq
• java
• sql
• jpa
• sql-builder
• sql-query
• +14 more

36.bumptech / glide

An image loading and caching library for Android focused on smooth scrolling

37.Tencent / tinker

Tinker is a hot-fix solution library for Android, it supports dex, library and resources update without reinstall apk.

• android
• dynamic
• hotfix
• wechat

38.javaparser / javaparser

Java 1-25 Parser and Abstract Syntax Tree for Java with advanced analysis functionalities.

• javaparser
• parser
• java
• javadoc
• code-generation
• code-generator
• +5 more

39.LibrePDF / OpenPDF

OpenPDF is an open-source Java library for creating, editing, rendering, and encrypting PDF documents, as well as generating PDFs from HTML. It is licensed under the LGPL and MPL.

• pdf
• pdf-generation
• java
• itext
• openpdf
• kotlin
• +1 more

40.pentaho / pentaho-kettle

Pentaho Data Integration ( ETL ) a.k.a Kettle

41.ta4j / ta4j

A Java library for technical analysis.

• java-library
• stocks
• forex
• bitcoin
• ethereum
• trading-algorithms
• +5 more

42.APIJSON / APIJSON

🏆 Real-Time no-code, powerful and secure ORM 🚀 providing APIs and Docs without coding by Backend, and Frontend(Client) can customize response JSONs 🏆 实时 零代码、全功能、强安全 ORM 库 🚀 后端接口和文档零代码，前端(客户端) 定制返回 JSON 的数据和结构

• postgresql-database
• tidb
• sqlserver
• oracle
• clickhouse
• postgresql
• +14 more

43.JanusGraph / janusgraph

JanusGraph: an open-source, distributed graph database

• graph-database
• tinkerpop
• gremlin
• hbase
• cassandra
• elasticsearch
• +4 more

44.hazelcast / hazelcast

Hazelcast is a unified real-time data platform combining stream processing with a fast data store, allowing customers to act instantly on data-in-motion for real-time insights.

• java
• hazelcast
• in-memory
• big-data
• scalability
• distributed
• +9 more

45.mucommander / mucommander

A lightweight, cross-platform file manager with a dual-pane interface

• hacktoberfest

46.projectlombok / lombok

Very spicy additions to the Java programming language.

47.bytedeco / javacv

Java interface to OpenCV, FFmpeg, and more

• javacv
• java
• opencv
• ffmpeg
• computer-vision
• multimedia
• +2 more

48.TASEmulators / freej2me-plus

A free J2ME emulator with libretro, awt and sdl2 frontends.

49.mapstruct / mapstruct

An annotation processor for generating type-safe bean mappers

• mapstruct
• java
• annotation-processor
• mapping
• javabeans
• no-reflection
• +2 more

50.xonotic / xonotic

Mirror of https://gitlab.com/xonotic/xonotic - Xonotic (superproject containing build scripts and tools to download other repositories and assets)

• xonotic
• nexuiz
• 3d-game
• fps-game
• game
• q3a
• +6 more

51.eclipse-vertx / vert.x

Vert.x is a tool-kit for building reactive applications on the JVM

• vertx
• java
• netty
• reactive
• jvm
• http2
• +5 more

52.Tencent / QMUI_Android

提高 Android UI 开发效率的 UI 库

• android
• android-ui
• ui-components

53.VazkiiMods / Botania

A tech mod for Minecraft themed around the magic of nature and plant life.

• minecraft
• java
• hacktoberfest

54.nextgenhealthcare / connect

The swiss army knife of healthcare integration.

• mirth
• mirth-connect
• hl7
• healthcare
• integration
• interoperability

55.Vedenin / useful-java-links

A list of useful Java frameworks, libraries, software and hello worlds examples

• java-links
• java-frameworks
• awesome-list
• machine-learning
• java-libraries
• java-api
• +4 more

56.haifengl / smile

Statistical Machine Intelligence & Learning Engine

• machine-learning
• regression
• clustering
• manifold-learning
• nlp
• visualization
• +14 more

57.CalebFenton / simplify

Android virtual machine and deobfuscator

• deobfuscation
• java
• optimization
• android
• reverse-engineering
• malware-analysis
• +9 more

58.java-native-access / jna

Java Native Access

59.jline / jline3

JLine is a Java library for handling console input.

• cli
• console
• java

60.schemacrawler / SchemaCrawler

Free database schema discovery and comprehension tool

• schemacrawler
• jdbc
• database-diagrams
• schema
• java
• database
• +11 more

61.eclipse-openj9 / openj9

Eclipse OpenJ9: A Java Virtual Machine for OpenJDK that's optimized for small footprint, fast start-up, and high throughput. Builds on Eclipse OMR (https://github.com/eclipse/omr) and combines with the Extensions for OpenJDK for OpenJ9 repo.

• java
• jvm
• eclipse-openj9
• compiler
• garbage-collector
• gc
• +5 more

62.OpenIdentityPlatform / OpenAM

OpenAM is an open-source access management solution for identity authentication, authorization, and federation. It provides single sign-on, adaptive authentication, and centralized policy control, enabling secure access to web, mobile, and cloud applications

• openam
• sso
• oauth
• saml
• aaa
• authentication
• +14 more

63.imagej / ImageJ

Public domain software for processing and analyzing scientific images

• image-processing
• computer-vision

64.hex007 / freej2me

A free J2ME emulator with libretro, awt and sdl2 frontends.

• j2me
• emulator
• emulator-frontend
• libretro
• sdl2
• sdl2-frontends
• +1 more

65.openhtmltopdf / openhtmltopdf

An HTML to PDF library for the JVM. Based on Flying Saucer and Apache PDF-BOX 3. With SVG image support. Now also with accessible PDF support (WCAG, Section 508, PDF/UA)!

66.aosp-mirror / platform_frameworks_baseArchived

No description provided by the repository host.

67.INRIA / spoon

Spoon is a metaprogramming library to analyze and transform Java source code. :spoon: is made with :heart:, :beers: and :sparkles:. It parses source files to build a well-designed AST with powerful analysis and transformation API.

• code-analysis
• code-transformation
• metaprogramming
• code-generation
• abstract-syntax-tree
• ast
• +10 more

68.mstrobel / procyon

Procyon is a suite of Java metaprogramming tools, including a rich reflection API, a LINQ-inspired expression tree API for runtime code generation, and a Java decompiler.

69.zendesk / maxwell

Maxwell's daemon, a mysql-to-json kafka producer

70.Loophole-LLC / Bastillion

Bastillion gives you a clean, browser-based way to manage SSH access across all your systems—like a bastion host with a friendly dashboard.

• ssh
• bastion-host
• java
• javascript
• web-app
• web-based
• +8 more

71.SmartBear / soapui

SoapUI is a free and open source cross-platform functional testing solution for APIs and web services.

• open-source
• on-prem
• soapui-oss

72.paohaijiao / jquick-pdf

JQuick-Pdf is an enterprise-grade Java PDF generation framework. It provides HTML-like declarative syntax and supports more than 30 kinds of graphs, greatly simplifying complex PDF report creation while retaining full native pdfbox(since version 4.0.0) APIs.

• apache-pdfbox
• charts
• data-visualization
• fonts
• i18n
• java
• +14 more

73.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.

• jitwatch
• java
• javafx
• hotspot-jit-compiler
• hotspot
• log-analyser
• +2 more

74.OpenOLAT / OpenOLAT

Learning Management System OpenOlat

• elearning
• lms
• java
• education
• assessment
• content
• +11 more

75.stleary / JSON-java

A reference implementation of a JSON package in Java.

• hacktoberfest
• java
• json
• public-domain

76.confluentinc / schema-registry

Confluent Schema Registry for Kafka

• schema-registry
• kafka
• schema
• schemas
• avro
• avro-schema
• +6 more

77.dhatim / fastexcel

Generate and read big Excel files quickly

• excel
• java
• performance

78.MarcusWolschon / osmeditor4android

Vespucci is a OpenStreetMap editor for Android

79.EngineHub / WorldGuard

🛡️ Protect your Minecraft server and lets players claim areas

• worldguard
• java
• minecraft
• worldedit

80.deathmarine / Luyten

An Open Source Java Decompiler Gui for Procyon

81.jboss-javassist / javassist

Java bytecode engineering toolkit

• java-bytecode
• java

82.VaughnVernon / IDDD_Samples

These are the sample Bounded Contexts from the book "Implementing Domain-Driven Design" by Vaughn Vernon: http://vaughnvernon.co/?page_id=168

83.flyingsaucerproject / flyingsaucer

XML/XHTML and CSS 2.1 renderer in pure Java

84.Tencent / VasSonic

VasSonic is a lightweight and high-performance Hybrid framework developed by tencent VAS team, which is intended to speed up the first screen of websites working on Android and iOS platform.

• hybrid
• android-sdk
• ios-sdk
• h5
• web
• webview

85.google / j2objc

A Java to iOS Objective-C translation tool and runtime.

86.mysql / mysql-connector-j

MySQL Connector/J

87.bytedeco / javacpp

The missing bridge between Java and native C++

• javacpp
• java
• c
• cpp
• c-plus-plus
• jni
• +1 more

88.chewiebug / GCViewer

Fork of tagtraum industries' GCViewer. Tagtraum stopped development in 2008, I aim to improve support for Sun's / Oracle's java 1.6+ garbage collector logs (including G1 collector)

89.allegro / hermes

Fast and reliable message broker built on top of Kafka.

• hermes
• kafka
• pubsub
• messaging
• hacktoberfest

90.androidannotations / androidannotationsArchived

Fast Android Development. Easy maintainance.

• android
• java
• androidannotations
• annotation-processor

91.SonarSource / sonar-java

:coffee: SonarSource Static Analyzer for Java Code Quality and Security

• java
• sonarqube
• static-code-analysis
• static-analyzer
• static-analysis
• language-team
• +5 more

92.OpenIdentityPlatform / OpenDJ

OpenDJ is an open-source LDAP directory server written in Java. It provides robust, scalable, and secure directory services for identity management, access control, and authentication in enterprise environments. OpenDJ supports LDAPv3 standard, replication, REST APIs, and high-performance

• ldap-server
• ldap
• opendj
• rest
• rest2ldap
• opends
• +6 more

93.DiUS / java-faker

Brings the popular ruby faker gem to Java

• java
• faker-gem
• java-faker

94.rabbitmq / rabbitmq-java-client

RabbitMQ Java client

• rabbitmq
• java

95.AndroidVTS / android-vts

Android Vulnerability Test Suite - In the spirit of open data collection, and with the help of the community, let's take a pulse on the state of Android security. NowSecure presents an on-device app to test for recent device vulnerabilities.

96.jjoe64 / GraphView

Android Graph Library for creating zoomable and scrollable line and bar graphs.

• android
• android-library
• graphs

97.tdebatty / java-string-similarity

Implementation of various string similarity and distance algorithms: Levenshtein, Jaro-winkler, n-Gram, Q-Gram, Jaccard index, Longest Common Subsequence edit distance, cosine similarity ...

• java
• levenshtein-distance
• cosine-similarity
• string-distance
• damerau-levenshtein
• distance
• +5 more

98.jnr / jnr-ffi

Java Abstracted Foreign Function Layer

99.kaitoy / pcap4j

A Java library for capturing, crafting, and sending packets.

• capture-packets
• winpcap
• libpcap
• sending-packets
• java-library
• pcap-library
• +3 more

100.fluttercommunity / flutter_webview_plugin

Community WebView Plugin - Allows Flutter to communicate with a native WebView.

• hacktoberfest