Translated😮 Core Interview Questions & Answers For Experienced Java(Backend) Developers | A complete primer on advanced knowledge for internet Java engineers: covering high concurrency, distributed systems, high availability, microservices, massive data processing, and other areas
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Free universal database tool and SQL client
Learn System Design concepts and prepare for interviews using free resources.
PDF Parser for AI-ready data. Automate PDF accessibility. Open-source.
Orchestrate everything, everywhere. The open-source control plane for workflows across data, infrastructure, business processes and AI agents. Declarative YAML, event-driven, any language, Git-versioned, scalable to millions of executions.
- orchestration
- data-orchestration
- high-availability
- infrastructure-as-code
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.
APM, Application Performance Monitoring System
- skywalking
- observability
- apm
- service-mesh
Event bus for Android and Java that simplifies communication between Activities, Fragments, Threads, Services, etc. Less code, better quality.
FizzBuzz Enterprise Edition is a no-nonsense implementation of FizzBuzz made by serious businessmen for serious business purposes.
TranslatedA powerful flow control component enabling reliability, resilience and monitoring for microservices. (A high-availability flow control and protection component for cloud-native microservices)
- alibaba
- java
- microservice
- circuit-breaker
Empowering Data Intelligence with Distributed SQL for Sharding, Scalability, and Security Across All Databases.
TranslatedYet another small online mall. litemall = Spring Boot backend + Vue admin frontend + WeChat mini program user frontend + Vue user mobile frontend
- litemall
- wechat-mini-program
- spring-boot
- mall
Zipkin is a distributed tracing system
- zipkin
- distributed-tracing
- tracing
- openzipkin
Apache Doris is a real-time analytics and hybrid search database for AI agents.
- olap
- database
- hudi
- iceberg
greenDAO is a light & fast ORM solution for Android that maps objects to SQLite databases.
The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRocks provides best-in-class performance for multi-dimensional analytics, real-time analytics, and ad-hoc queries. A Linux Foundation project.
Realm is a mobile database: a replacement for SQLite & ORMs
Continuous Inspection
- sonarqube
- code-quality
- static-analysis
Diskless Kafka® on S3. 10x Cost-Effective. No Cross-AZ Traffic Cost. Autoscale in seconds. Single-digit ms latency. Multi-AZ Availability.
- kafka
- diskless
- automq
- serverless
Open source transactional distributed database. Linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure without compromising performance.
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.
A library for debugging android databases and shared preferences - Make Debugging Great Again
Tsunami is a general purpose network security scanner with an extensible plugin system for detecting high severity vulnerabilities with high confidence.
Modifications to the Minecraft base files to assist in compatibility between mods. New Discord: https://discord.minecraftforge.net/
- java
- forge
- minecraft
- mod