termux / termux-app
Termux - a terminal emulator application for Android OS extendible by variety of packages.
termux / termux-app
ashishps1 / awesome-system-design-resources
Learn System Design concepts and prepare for interviews using free resources.
krahets / hello-algo
《Hello 算法》：动画图解、一键运行的数据结构与算法教程。支持简中、繁中、English、日本語，提供 Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart 等代码实现
spring-projects / spring-boot
Spring Boot helps you to create Spring-powered, production-grade applications and services with absolute minimum fuss.
apache / kafka
Apache Kafka - A distributed event streaming platform
opentrap / opentrap
A free, open-source alternative to Burp Suite: an intercepting proxy and web app security testing suite with Repeater, Intruder, Collaborator and a built-in OWASP ZAP scanner. Linux, AGPL-3.0.
kernelpanic0x11 / instagram-api-workbench
Instagram Android API evidence, OpenAPI catalog, and local JavaScript Swagger workbench
Lucas0623z / NoteLite
Open-source OMR and guided music practice: turn sheet music PDFs/images into MusicXML/MIDI, refine scores, and practice with MIDI or microphone feedback.
jean-voila / FeurStagram
Instagram without Reels, feed or ads: an open-source, updatable Instagram app for Android that keeps DMs and stories.
0xProbabillity / luma-tv
A calm, tvOS-inspired home screen for Android TV and Google TV. No ads, no tracking.
TeamNewPipe / NewPipe
A libre lightweight streaming front-end for Android.
keycloak / keycloak
Open Source Identity and Access Management For Modern Applications and Services
netty / netty
Netty project - an event-driven asynchronous network application framework
bumptech / glide
An image loading and caching library for Android focused on smooth scrolling
zxing / zxing
ZXing ("Zebra Crossing") barcode scanning library for Java, Android
alibaba / nacos
an easy-to-use dynamic service discovery, configuration and service management platform for building AI cloud native applications.
conductor-oss / conductor
Conductor is an event driven agentic workflow engine providing durable and highly resilient execution engine for applications and AI Agents
kestra-io / kestra
Event Driven Orchestration & Scheduling Platform for Mission Critical Applications
alibaba / spring-cloud-alibaba
Spring Cloud Alibaba provides a one-stop solution for application development for the distributed solutions of Alibaba middleware.
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.
floci-io / floci
Light, fluffy, and always free - The AWS Local Emulator alternative
OpenAPITools / openapi-generator
OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)
apache / flink
Apache Flink
bazelbuild / bazel
a fast, scalable, multi-language and extensible build system
apache / skywalking
APM, Application Performance Monitoring System
redisson / redisson
Redisson: Valkey & Redis Java Client and Real-Time Data Platform. Sync/Async/RxJava/Reactive API. Over 50 Valkey and Redis based Java objects and services: Set, Multimap, SortedSet, Map, List, Queue, Deque, Semaphore, Lock, AtomicLong, Map Reduce, Bloom filter, Spring, Tomcat, Scheduler, JCache API, Hibernate, RPC, local cache..
doocs / source-code-hunter
😱 从源码层面，剖析挖掘互联网行业主流技术的底层实现原理，为广大开发者 “提升技术深度” 提供便利。目前开放 Spring 全家桶，Mybatis、Netty、Dubbo 框架，及 Redis、Tomcat 中间件等
apache / rocketmq
Apache RocketMQ is a cloud native messaging and streaming platform, making it simple to build event-driven applications.
oracle / graal
GraalVM compiles applications into native executables that start instantly, scale fast, and use fewer compute resources 🚀
CarGuo / GSYVideoPlayer
Video players (IJKplayer, ExoPlayer, MediaPlayer), HTTPS, 16k page size, danmaku (bullet chat) support, external subtitles, support for filters, watermarks, and GIF screenshots, pre-roll and mid-roll ads, multiple simultaneous playback, basic seeking/dragging, volume and brightness adjustment, play-while-cache support
apache / shardingsphere
Empowering Data Intelligence with Distributed SQL for Sharding, Scalability, and Security Across All Databases.
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
ben-manes / caffeine
A high performance caching library for Java
questdb / questdb
QuestDB is a high performance, open-source, time-series database
zaproxy / zaproxy
The ZAP by Checkmarx Core project
supertokens / supertokens-core
Open source alternative to Auth0 / Firebase Auth / AWS Cognito
microg / GmsCore
Free implementation of Play Services
eclipse-vertx / vert.x
Vert.x is a tool-kit for building reactive applications on the JVM
xpipe-io / xpipe
Access your entire server infrastructure from your local desktop
GoogleContainerTools / jib
🏗 Build container images for your Java applications.
deeplearning4j / deeplearning4j
Suite of tools for deploying and training deep learning models using the JVM. Highlights include model import for keras, tensorflow, and onnx/pytorch, a modular and tiny c++ library for running math code and a java based math library on top of the core c++ library. Also includes samediff: a pytorch/tensorflow like library for running deep learn...
pinpoint-apm / pinpoint
APM, (Application Performance Management) tool for large-scale distributed systems.
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。
langchain4j / langchain4j
LangChain4j is an idiomatic, open-source Java library for building LLM-powered applications on the JVM. It offers a unified API over popular LLM providers and vector stores, and makes implementing tool calling (including MCP support), agents and RAG easy. It integrates seamlessly with enterprise Java frameworks like Quarkus and Spring Boot.
debezium / debezium
Change data capture for a variety of databases. Please log issues at https://github.com/debezium/dbz/issues.
codecentric / spring-boot-admin
Admin UI for administration of spring boot applications
apereo / cas
Apereo CAS - Identity & Single Sign On for all earthlings and beyond.
jwtk / jjwt
Java JWT: JSON Web Token for Java and Android
AutoMQ / automq
Diskless Kafka® on S3. 10x Cost-Effective. No Cross-AZ Traffic Cost. Autoscale in seconds. Single-digit ms latency. Multi-AZ Availability.
signalapp / Signal-Server
Server supporting the Signal Private Messenger applications on Android, Desktop, and iOS
Activiti / Activiti
Activiti is a light-weight workflow and Business Process Management (BPM) Platform targeted at business people, developers and system admins. Its core is a super-fast and rock-solid BPMN 2 process engine for Java. It's open-source and distributed under the Apache license. Activiti runs in any Java application, on a server, on a cluster or in the cloud. It integrates perfectly with Spring, it is extremely lightweight and based on simple concepts.
niedev / RTranslator
Open source real-time translation app for Android that runs locally
apache / cassandra
Open source transactional distributed database. Linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure without compromising performance.
apache / seatunnel
SeaTunnel is a multimodal, high-performance, distributed, massive data integration tool.
checkstyle / checkstyle
Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. By default it supports the Google Java Style Guide and Sun Code Conventions, but is highly configurable. It can be invoked with an ANT task and a command line program.
spring-projects / spring-ai
An Application Framework for AI Engineering
cabaletta / baritone
google maps for block game
aeron-io / aeron
Efficient reliable UDP unicast, UDP multicast, and IPC message transport
testcontainers / testcontainers-java
Testcontainers is a Java library that supports JUnit tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.
react-native-image-picker / react-native-image-picker
:sunrise_over_mountains: A React Native module that allows you to use native UI to select media from the device library or directly from the camera.