Repository Index

Learn System Design concepts and prepare for interviews using free resources.

• awesome
• backend
• computer-science
• distributed-systems

Learn Low Level Design (LLD) and prepare for interviews using free resources.

• awesome
• design-patterns
• interview
• interview-practice

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

• visualization
• iot
• iot-platform
• mqtt

Awesome LeetCode resources to learn Data Structures and Algorithms and prepare for Coding Interviews.

• algorithms
• coding
• data-structures
• leetcode

Translated"Source Code for the Simplest Spring Cloud Tutorial Ever"

• spring-cloud
• spring-boot
• hystrix
• finchley

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

• etl-framework
• streaming
• logging
• java

Access your entire server infrastructure from your local desktop

• java
• javafx
• docker
• ssh

Picocli is a modern framework for building powerful, user-friendly, GraalVM-enabled command line apps with ease. It supports colors, autocompletion, subcommands, and more. In 1 source file so apps can include as source & avoid adding a dependency. Written in Java, usable from Groovy, Kotlin, Scala, etc.

• java
• commandline
• parser
• ansi-colors

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

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

• iot-platform
• iot
• energy
• building

An easy-to-use BI server built for SQL lovers. Power data analysis in SQL and gain faster business insights.

• business-intelligence
• sql
• dashboard
• data-visualization

Elassandra = Elasticsearch + Apache Cassandra

• cassandra
• elasticsearch
• search
• completion

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.

• xquery
• java
• temporal-data
• storage

Make Slack and Facebook Bots in Java.

• jbot
• slack
• slack-bot
• java

Java Collections till the last breadcrumb of memory and performance

• java-collections
• java
• koloboke
• annotation-processor

A Java entity system inspired by Ash & Artemis.

Zero-allocation hashing for Java

• java
• hashing
• high-performance
• farmhash

Apache StreamPipes - A self-service (Industrial) IoT toolbox to enable non-technical users to connect, analyze and explore IoT data streams.

• iot
• analytics
• edge
• stream-processing

A simple way to pack and manage texture atlases for libGDX game framework.

• libgdx
• texturepacker
• texture-atlas
• texture-packing

(UNMAINTAINED) inspectIT is the leading Open Source APM (Application Performance Management) tool for analyzing your Java (EE) applications.

• inspectit
• agent
• trace
• apm

Unleash public transport data in your Java project.

• java
• library
• public-transportation
• navitia

Java cryptographic library that supports Argon2, bcrypt, scrypt and PBKDF2 aimed to protect passwords in databases. Easy to use by design, highly customizable, secure and portable. All the implementations follow the standards and have been reviewed to perform better in the JVM.

• pbkdf2
• bcrypt
• scrypt
• argon2

Geohash utitlies in java

A Java library to use the OpenAI Api in the simplest possible way.

• httpclient
• java
• openai
• simple