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Apache Druid: a high performance real-time analytics database.

APM, (Application Performance Management) tool for large-scale distributed systems.

Open Machine Learning Compiler Framework

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 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.

Flexible level editor

Apache ZooKeeper

:tropical_fish: Beats - Lightweight shippers for Elasticsearch & Logstash

Open-Source Web UI for Apache Kafka Management

Super simple build framework with fast, repeatable builds and an instantly familiar syntax – like Dockerfile and Makefile had a baby.

OpenRefine is a free, open source power tool for working with messy data and improving it

This is a collection of tutorials for learning how to use Docker with various tools. Contributions welcome.

Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.

Continuous Inspection

Server supporting the Signal Private Messenger applications on Android, Desktop, and iOS

YugabyteDB - the cloud native distributed SQL database for mission-critical applications.

Multi-platform SDK for integrating GitHub Copilot Agent into apps and services

cuDF - GPU DataFrame Library

SeaTunnel is a multimodal, high-performance, distributed, massive data integration tool.

cuDF - GPU DataFrame Library

CLI tool and library for generating a Software Bill of Materials from container images and filesystems

An Application Framework for AI Engineering

Polyglot document intelligence with a Rust core: extract text, metadata, images, tables, and structured data from 106 formats across 140 file extensions, plus code intelligence for 371 languages. Fifteen bindings, with CLI, REST API, and MCP server.

WebGoat is a deliberately insecure application

highlight.io: The open source, full-stack monitoring platform. Error monitoring, session replay, logging, distributed tracing, and more.

A complete web conferencing system for virtual classes and more!

A fast, scalable, high performance Gradient Boosting on Decision Trees library, used for ranking, classification, regression and other machine learning tasks for Python, R, Java, C++. Supports computation on CPU and GPU.

搜狐视频(sohu tv)Redis私有云平台 ：支持Redis多种架构(Standalone、Sentinel、Cluster)高效管理、有效降低大规模redis运维成本，提升资源管控能力和利用率。平台提供快速搭建/迁移，运维管理，弹性伸缩，统计监控，客户端整合接入等功能。(CacheCloud is a Redis cloud management platform. It supports Standalone, Sentinel, and Cluster architectures for Redis, effectively reducing large-scale Redis operation and maintenance costs, and improving resource management and utilization. The platform provides rapid construction/migration, operation and maintenance management, elastic scaling, statistical monitoring, client integration and access and other functions)

Enterprise-grade, commercial-friendly agentic workflow platform for building next-generation SuperAgents.

An open-source storage framework that enables building a Lakehouse architecture with compute engines including Spark, PrestoDB, Flink, Trino, and Hive and APIs