Showing 5351 open source projects for "java open source"

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    Create and run cloud-based virtual machines.

    Secure and customizable compute service that lets you create and run virtual machines.

    Computing infrastructure in predefined or custom machine sizes to accelerate your cloud transformation. General purpose (E2, N1, N2, N2D) machines provide a good balance of price and performance. Compute optimized (C2) machines offer high-end vCPU performance for compute-intensive workloads. Memory optimized (M2) machines offer the highest memory and are great for in-memory databases. Accelerator optimized (A2) machines are based on the A100 GPU, for very demanding applications.
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  • 1
    Open Source with Pradumna

    Open Source with Pradumna

    Resources and materials to get yourself started with open source

    Open Source guide, contains resources and materials to learn and get yourself started with Open Source, Git, and GitHub. Building the repo you need to get started with Open Source. This repo contains resources and materials to learn and get yourself started with Open Source, Git and GitHub. The repo content is divided into several Pages for better structuring, easy navigation and making learning easier.
    Downloads: 0 This Week
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  • 2
    Open Source Vizier

    Open Source Vizier

    Python-based research interface for blackbox

    Open Source (OSS) Vizier is a Python-based interface for blackbox optimization and research, based on Google’s original internal Vizier, one of the first hyperparameter tuning services designed to work at scale. Allows a user to setup an OSS Vizier Server, which can host black-box optimization algorithms to serve multiple clients simultaneously in a fault-tolerant manner to tune their objective functions.
    Downloads: 0 This Week
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  • 3
    Source Code Hunter

    Source Code Hunter

    Source code analysis of Spring, MyBatis, Redis, Netty, and more

    Source Code Hunter is an open source project by Doocs that focuses on analyzing and explaining the source code of widely used Java frameworks and libraries. It helps developers deepen their understanding of internal implementations, design patterns, and performance optimizations by walking through actual codebases such as Spring, MyBatis, Netty, Tomcat, and others.
    Downloads: 1 This Week
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  • 4
    Google Open Source Project Style Guide

    Google Open Source Project Style Guide

    Chinese version of Google open source project style guide

    Each larger open source project has its own style guide, a series of conventions on how to write code for the project (sometimes more arbitrary). When all the code maintains a consistent style, it is more important when understanding large code bases. easy. The meaning of "style" covers a wide range, from "variables use camelCase" to "never use global variables" to "never use exceptions".
    Downloads: 1 This Week
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  • Financial reporting cloud-based software. Icon
    Financial reporting cloud-based software.

    For companies looking to automate their consolidation and financial statement function

    The software is cloud based and automates complexities around consolidating and reporting for groups with multiple year ends, currencies and ERP systems with a slice and dice approach to reporting. While retaining the structure, control and validation needed in a financial reporting tool, we’ve managed to keep things flexible.
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  • 5
    Open Chinese Convert

    Open Chinese Convert

    Conversion between Traditional and Simplified Chinese

    Open Chinese Convert (OpenCC, 開放中文轉換) is an opensource project for conversions between Traditional Chinese, Simplified Chinese and Japanese Kanji (Shinjitai). It supports character-level and phrase-level conversion, character variant conversion and regional idioms among Mainland China, Taiwan and Hong Kong. This is not translation tool between Mandarin and Cantonese, etc.
    Downloads: 4 This Week
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  • 6
    DSA Bootcamp Java

    DSA Bootcamp Java

    This repository consists of the code samples, assignments, and notes

    DSA Bootcamp Java is an open source educational repository created by Kunal Kushwaha to teach Data Structures and Algorithms (DSA) using Java. It is designed as a structured bootcamp, covering fundamental concepts to advanced problem-solving techniques. The project provides explanations, exercises, assignments, and practice problems, making it useful for both beginners and intermediate learners who want to strengthen their Java and algorithmic skills. ...
    Downloads: 1 This Week
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  • 7
    simple-java-maven-app

    simple-java-maven-app

    For an introductory tutorial on how to use Jenkins

    simple-java-maven-app is a reference repository created for the Jenkins tutorial on building a Java application with Maven. It contains a minimal Java program that prints “Hello world!” and includes unit tests to validate functionality, with test results exported in JUnit XML format. The repository provides an example that demonstrates how to configure a Jenkins Pipeline for building and delivering applications. It also includes scripts that define commands executed in pipeline stages,...
    Downloads: 0 This Week
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  • 8
    Interviews

    Interviews

    Comprehensive computer science and interview preparation guide

    Interviews is an open source repository designed as a comprehensive guide to preparing for technical interviews, with a strong focus on computer science fundamentals and algorithmic problem solving. Created by Kevin Naughton Jr., the project compiles detailed notes, explanations, and code implementations that cover core areas tested in software engineering interviews.
    Downloads: 4 This Week
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  • 9
    LeetCode Book

    LeetCode Book

    Comprehensive study guide for coding interviews

    LeetCode-Book is a comprehensive study guide for coding interviews that consolidates algorithm patterns, data-structure templates, and worked LeetCode solutions. It organizes problems by topic—arrays, linked lists, stacks/queues, trees/graphs, dynamic programming, greedy, backtracking, and math—so you can study systematically. Explanations are concise but intentional, highlighting why a pattern fits, how to reason about boundary cases, and the time/space trade-offs. Many entries include...
    Downloads: 2 This Week
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    Reach Your Audience with Rise Vision, the #1 Cloud Digital Signage Software Solution

    K-12 Schools, Higher Education, Businesses, Restaurants

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  • 10
    Dict UK

    Dict UK

    Project to generate POS tag dictionary for Ukrainian language

    A Java-based tool for generating full morphological dictionaries for Ukrainian, applying affix rules to base lexemes to produce all inflected forms with part-of-speech tags—used for natural language processing and spell-checking.
    Downloads: 0 This Week
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  • 11
    To Be Top Javaer

    To Be Top Javaer

    To Be Top Javaer - The Path to Becoming a Java Engineer

    toBeTopJavaer is an open source knowledge base and learning roadmap designed to help developers become expert Java engineers. Created and maintained by Hollis, the project compiles a wide range of Java fundamentals, advanced features, and ecosystem knowledge into one structured guide. It covers core Java concepts, JVM internals, multithreading, frameworks, databases, system design, and interview preparation.
    Downloads: 5 This Week
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  • 12
    Stellarium

    Stellarium

    GPL software which renders realistic skies in real time

    ...It is available for Linux/Unix, Windows and macOS. With Stellarium, you really see what you can see with your eyes, binoculars or a small telescope. Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope. Plugin system adding artifical satellites, ocular simulation, telescope control and more. Ability to add new solar system objects from online resources. Add your own deep sky objects, landscapes, constellation images, scripts, etc. ...
    Downloads: 78 This Week
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  • 13
    TEAMMATES Developer Web Site

    TEAMMATES Developer Web Site

    This is the project website for the TEAMMATES feedback management tool

    TEAMMATES is a free online tool for managing peer evaluations and other feedback paths of your students. It is provided as a cloud-based service for educators/students and is currently used by hundreds of universities across the world.
    Downloads: 0 This Week
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  • 14
    KOReader

    KOReader

    An ebook reader application supporting PDF, DjVu, EPUB, FB2, etc.

    KOReader is a document viewer for E Ink devices. Supported fileformats include EPUB, PDF, DjVu, XPS, CBT, CBZ, FB2, PDB, TXT, HTML, RTF, CHM, DOC, MOBI and ZIP files. It’s available for Kindle, Kobo, PocketBook, Android and desktop Linux. Runs on embedded devices (Cervantes, Kindle, Kobo, PocketBook, reMarkable), Android and Linux computers. Developers can run a KOReader emulator in Linux and MacOS. Multi-lingual user interface with a highly customizable reader view and many typesetting...
    Downloads: 106 This Week
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  • 15
    Canvas LMS

    Canvas LMS

    The open LMS by Instructure, Inc.

    Canvas LMS is a full-featured learning management system designed for K–12, higher-ed, and professional training, with a strong emphasis on usability and openness. Instructors build courses from modular content—pages, assignments, discussions, quizzes—and organize them into learning paths with prerequisites and due dates. Rich grading tools like SpeedGrader streamline assessment with rubrics, inline annotations, and audio/video feedback, while the gradebook supports weighting, outcomes, and...
    Downloads: 41 This Week
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  • 16

    Java Tutorial

    A Java Tutorial by examples

    Learn Java by writing real and usefull small applications. This tutorial teach you not only the language; documentation, bug-fixing and simple version control are also faced. The tutorial is in italian language.
    Downloads: 0 This Week
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  • 17
    Anki

    Anki

    Anki is a smart spaced repetition flashcard program

    Anki is a free, open-source spaced repetition flashcard application designed for efficient long‑term memorization. It supports a wide variety of media types (text, images, audio, LaTeX), advanced scheduling algorithms (SM‑2, FSRS), and extensibility via add‑ons. It’s widely used for education, language learning, medical training, and more.
    Downloads: 25 This Week
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  • 18
    freeCodeCamp

    freeCodeCamp

    freeCodeCamp.org's open-source codebase and curriculum

    ...Because it is open source, anyone can propose improvements, add lessons, or adapt the platform for new languages and frameworks.
    Downloads: 22 This Week
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  • 19
    Mastering Bitcoin

    Mastering Bitcoin

    Mastering Bitcoin 3rd Edition - Programming the Open Blockchain

    The bitcoinbook repository contains the source code for Mastering Bitcoin, the authoritative open-source book by Andreas M. Antonopoulos on Bitcoin and cryptocurrency technologies. Written in a collaborative and continuously updated format using Markdown and AsciiDoc, the book serves as a comprehensive technical guide for developers, engineers, and system architects who want to understand how Bitcoin works.
    Downloads: 13 This Week
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  • 20
    Mall Learning

    Mall Learning

    Tutorial and sample-code repository

    mall-learning is a tutorial and sample-code repository that explores an entire e-commerce system architecture from backend to frontend. The associated “mall” project (with tens of thousands of stars) is an open-source full-stack e-commerce platform built with Spring Boot, MyBatis, Elasticsearch, RabbitMQ, Redis, MongoDB, MySQL and containerized via Docker. The learning repository breaks down architecture, business modules (products, orders, marketing, members), deployment (Linux, Docker, Jenkins) and technical points in detail. For each topic it provides sample code, explanations of why design decisions were made, trade-offs and how to implement real-world features like search, caching, delayed messaging, file storage. ...
    Downloads: 2 This Week
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  • 21
    Introduction to Zig

    Introduction to Zig

    An open, technical and introductory book for the Zig programming lang

    This is the official repository for the book "Introduction to Zig: a project-based Book", written by Pedro Duarte Faria. To know more about the book, check out the About this book section below. You can read the current version of the book in your web browser. The book is built using the publishing system Quarto in conjunction with a little bit of R code (zig_engine.R), which is responsible for calling the Zig compiler to compile and run the Zig code examples.
    Downloads: 15 This Week
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  • 22
    Koha Library Software

    Koha Library Software

    Community Koha plus additional patches needed for ByWater Partners

    Koha is a free, open-source, web-based library management system (ILS) that helps libraries streamline operations and improve user services. It's used by libraries of all sizes worldwide and is built using library standards and protocols. Koha is a fully featured, scalable library management system with a configurable user interface, adaptable for any library type, and has been translated into many languages.
    Downloads: 12 This Week
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  • 23
    Calibre-Web

    Calibre-Web

    Web app for browsing, reading and downloading eBooks stored in Calibre

    Calibre-Web is a web app providing a clean interface for browsing, reading and downloading eBooks using an existing Calibre database. User management with fine-grained per-user permissions. User Interface in Brazilian, Czech, Dutch, English, Finnish, French, German, Greek, Hungarian, Italian, Japanese, Khmer, Polish, Russian, simplified and traditional Chinese, Spanish, Swedish, Turkish, Ukrainian. Filter and search by titles, authors, tags, series and language. Support for editing eBook...
    Downloads: 21 This Week
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  • 24
    HTML CSS

    HTML CSS

    Curso de HTML5 e CSS3

    Tutorial, teaching, or resource collection on HTML and CSS, aimed at beginners. It likely contains sample websites, examples of markup, styling, exercises, and reference materials related to web front-end development using HTML and CSS. CSS styling samples and layout demonstrations. Educational documentation (README, explanations). Structured project examples (e.g. small websites). Version history/incremental improvements.
    Downloads: 8 This Week
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  • 25
    Stanza

    Stanza

    Stanford NLP Python library for many human languages

    Stanza is a collection of accurate and efficient tools for the linguistic analysis of many human languages. Starting from raw text to syntactic analysis and entity recognition, Stanza brings state-of-the-art NLP models to languages of your choosing. Stanza is a Python natural language analysis package. It contains tools, which can be used in a pipeline, to convert a string containing human language text into lists of sentences and words, to generate base forms of those words, their parts of...
    Downloads: 1 This Week
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