Showing 158 open source projects for "android application development"

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  • 1
    Realtime Chat Application

    Realtime Chat Application

    Build and deploy a real time chat application

    This full-stack tutorial project shows how to build and deploy a real-time chat app using React on the client and Node/Express with Socket.io on the server. It covers the mechanics of establishing WebSocket connections, broadcasting and receiving messages, and maintaining active user rooms. The repository includes scripts and instructions to spin up both client and server quickly so you can experiment locally. It illustrates common patterns like event-driven messaging, joining/leaving rooms,...
    Downloads: 0 This Week
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  • 2
    KOReader

    KOReader

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

    ...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 options. You can set arbitrary page margins, override line spacing and choose external fonts and styles. ...
    Downloads: 138 This Week
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  • 3
    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: 69 This Week
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  • 4
    Kubernetes Handbook

    Kubernetes Handbook

    Cloud native application architecture practice handbook

    Cloud native is a behavioral method and design concept. In its essence, all behaviors or methods that can improve resource utilization and application delivery efficiency on the cloud are cloud-native. The history of cloud computing is a history of cloud native. Kubernetes opened the prelude to cloud native 1.0. The emergence of service mesh Istio led to microservices in the post-Kubernetes era. The rise of serverless has enabled cloud native to advance from the infrastructure layer to the...
    Downloads: 2 This Week
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  • 5
    React Course

    React Course

    Large project-based repository covering React

    React Course v3 is a large project-based repository covering React from fundamentals through broader modern web development topics. Initial lessons explain components, JSX, props, state, events, rendering, hooks, and common React project structure. Learners then apply those concepts to complete projects such as the Backroads website and several smaller interactive applications. Advanced sections introduce Axios, React Query, external APIs, Contentful CMS, Redux Toolkit, and application state patterns. ...
    Downloads: 2 This Week
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  • 6
    Complete Intro to Web Dev v3

    Complete Intro to Web Dev v3

    The Complete Intro to Web Dev v3, as taught on Frontend Masters

    Complete Intro to Web Dev v3 is the course repository for Brian Holt’s beginner web development class on Frontend Masters. It is designed for learners with little or no coding experience. The lessons introduce HTML for page structure, CSS for visual design, and JavaScript for interactive behavior. Students practice browser tools, editors, debugging, responsive layouts, and common development workflows. The material builds toward creating a complete web application rather than isolated syntax exercises. ...
    Downloads: 0 This Week
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  • 7
    Archivematica

    Archivematica

    Free and open-source digital preservation system

    Archivematica is a web- and standards-based, open-source application which allows your institution to preserve long-term access to trustworthy, authentic, and reliable digital content. Our target users are archivists, librarians, and anyone working to preserve digital objects. You are free to copy, modify, and distribute Archivematica with attribution under the terms of the AGPLv3 license. Archivematica is an open-source application based on recognized standards that makes it possible to...
    Downloads: 7 This Week
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  • 8
    ERP Demo Application

    ERP Demo Application

    ERP Demo application

    An ERP application developed with JVx and other open source libraries.
    Downloads: 0 This Week
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  • 9
    Node.js Basics

    Node.js Basics

    Node.js Basics ( v24.x )

    ...The repository also contains sample projects for MySQL integration and several JWT authentication approaches. REST API development is a recurring theme throughout the collection. Most of the repository is written in JavaScript and is organized as a self-study reference rather than a single application. The current repository describes its content around Node.js 24.x and continues to function as a broad study and interview-preparation resource.
    Downloads: 0 This Week
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  • 10
    React in patterns

    React in patterns

    A free book that talks about design patterns/techniques

    React in patterns is a free book about common design patterns and techniques used in React development. It is written for developers who already understand React basics and want to think more clearly about application structure. The book explains concepts such as communication, event handlers, composition, controlled inputs, container components, one-way data flow, Flux, Redux, dependency injection, styling, and third-party integration.
    Downloads: 4 This Week
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  • 11
    The Astrid Contributor Handbook

    The Astrid Contributor Handbook

    The polyrepo, the kernel-is-dumb law, the RFC trigger

    The Astrid Contributor Handbook is the contributor handbook for working on Astrid. It is not an application, but a documentation project that explains how contributors should understand the Astrid development model. The handbook covers the polyrepo structure, the kernel-is-dumb law, the RFC trigger, contribution tiers, and the release process. It is built with mdBook, which makes it suitable for local reading, web publication, and structured documentation workflows.
    Downloads: 2 This Week
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  • 12
    go-ast-book

    go-ast-book

    Go Language Customization Guide

    Go AST Book is an open-source Chinese technical book about understanding and customizing Go through its abstract syntax tree. It explains how Go source files can be represented as semantically equivalent AST structures. The book focuses on the standard library packages behind this process, especially go/ast and go/token. It shows how tools such as formatting, documentation, parsing, and code analysis are built on top of syntax tree concepts. The repository includes chapter files, appendices,...
    Downloads: 2 This Week
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  • 13
    eduActiv8

    eduActiv8

    A collection of interactive educational exercises

    eduActiv8 is a free Open Source multi-platform educational application that aims to assist in learning various early education topics - from learning the alphabet and new words, colours, time to a wide range of maths-related subjects. eduActiv8 is a continuation of the development of the pySioGame project just under a new name. It is being developed on GitHub at: https://github.com/imiolek-ireneusz/eduActiv8 but 'compiled' releases are published here.
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    Downloads: 258 This Week
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  • 14
    Nootka

    Nootka

    application to learn classical score notation.

    Nootka helps understand the basics of music notation: reading and practicing playing musical scores. ​Long story short: the user plays notes (melody) displayed by the app, which then in real time checks if the notes was played correctly. The application is free and open source. It works under Windows, Linux, Mac and Android...
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    Downloads: 46 This Week
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  • 15
    OWASP Juice Shop

    OWASP Juice Shop

    Probably the most modern and sophisticated insecure web application

    OWASP Juice Shop is probably the most modern and sophisticated insecure web application! It can be used in security trainings, awareness demos, CTFs and as a guinea pig for security tools! Juice Shop encompasses vulnerabilities from the entire OWASP Top Ten along with many other security flaws found in real-world applications! Juice Shop is written in Node.js, Express and Angular. It was the first application written entirely in JavaScript listed in the OWASP VWA Directory. The...
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    Downloads: 255 This Week
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  • 16
    Advanced Trigonometry Calculator

    Advanced Trigonometry Calculator

    Open-source C/C++ math engine for advanced scientific computing

    Advanced Trigonometry Calculator (ATC) is an open-source mathematical computing engine written mainly in C/C++. Created in 2011 and maintained by Renato Alexandre dos Santos Freitas, ATC is designed as a practical Windows desktop application for advanced calculations, automation, and technical problem solving. ATC supports equation solving, polynomial tools, complex numbers, matrix calculations, statistics, physics, geometry, unit conversions, DSP/FFT operations, and scripting. It can...
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    Downloads: 20 This Week
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  • 17
    Spindle

    Spindle

    The language used in the AP CSP Exam, now a programming language!

    Spindle is a simple language designed to help AP CSP students ace their AP Exam. Spindle code largely mirrors the code found in the AP CSP Reference Sheet and allows students and teachers to get comfortable with code in the same format it'll have on exam day.
    Downloads: 0 This Week
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  • 18
    Void

    Void

    High-Fidelity Space Exploration Dashboard

    Project VOID is a cinematic mission control center built with React and Tailwind CSS. It aggregates real-time telemetry, orbital tracking, and global space news into a single, immersive "Sci-Fi HUD" interface, fully equipped with offline service worker support. Try the live application in action here: https://void-by-vignesh.vercel.app before downloading the source code Visit Repo For More Details : https://github.com/Vignesh-72/Void
    Downloads: 0 This Week
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  • 19
    MuseScore

    MuseScore

    Free music notation & composition software

    MuseScore is a free and open-source music notation software designed for composers, arrangers, educators, and musicians of all levels. It allows users to write, edit, and print professional-quality sheet music with no limitations or subscription fees. MuseScore Studio supports a wide range of instruments and ensembles, from solo piano and guitar to full orchestras and choirs. The software is easy to learn while still offering powerful tools for advanced notation and score layout. With...
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    Downloads: 62 This Week
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  • 20
    CSRmanage

    CSRmanage

    Centralized vetting and records of Certificate Signing Requests (CSRs)

    CSRmanage is an application that can be used to validate CSRs (Certificate Signing Requests) and store them along with anciliary information about the personnel involved with CSRs and certificate installations and approvals. CSR evaluation is configurable/very strict. With adequate configuration, CSRmanage may save organizations time and money by ensuring that CSRs to be submitted are formatted corrrectly and conform to organizational network/I.T/DNS naming conventions. It can also...
    Downloads: 1 This Week
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  • 21
    Quiz/Survey/Test - QST

    Quiz/Survey/Test - QST

    A Free, complete, open source universal assessment/exam platform

    QST, the worlds unparalleled open source, multi-tenant, online/lan assessment software. From a quick quiz on your phone to very large scale, high stakes, proctored desktop testing, we make it easy/secure/economical. Our intuitive design contains features (Immediate detailed results, Create/Export/Import/Convert Questions, WYSIWYG/Visual Math-Chemistry Editors, Question/Item Bank, Multiple Question Types, Multiple Delivery Styles, Multiple Delivery/Results Options, Adaptive/Branching...
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    Downloads: 38 This Week
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  • 22
    PCuaderno, teacher grade book.

    PCuaderno, teacher grade book.

    Teacher grade book. Aplication teacher support tool

    Useful application easy to handle for the management of information on the process of teaching and learning that takes place in a class. The idea is that the teacher comes to class or anywhere else, insert a USB (Universal Serial Bus) in the personal computer and run the application. When the application is launched the first thing we ask is a key that will be used to authenticate the user and to hide the information stored in database files using a cryptographic method. Once the user is...
    Downloads: 3 This Week
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  • 23
    Uneebee

    Uneebee

    Platform for creating interactive courses

    Uneebee is an open-source Elixir/Phoenix application focused on community content and learning workflows, designed to be both a usable product and a practical reference for building modern web apps in the Elixir stack. Its structure showcases common concerns—authentication, profiles, content creation, feeds, tagging, and search—implemented with clean boundaries so features can evolve independently. Real-time updates and responsive interactions are handled using Phoenix’s live capabilities...
    Downloads: 0 This Week
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  • 24
    SLiMS Library Management System

    SLiMS Library Management System

    Free & Open Community Edition Server in a Complete Virtual Machine

    This VM is created for 2 reasons: 1. Very little initial setup work required to make a Library Management System live, within minutes. 2. This system should keep running for Years, without requiring Updates / Breakages. If you are new to Virtual Machines, then please watch the Video below ( taken from my other project. just replace td with lm wherever mentioned ) After starting this VM, please access these websites ( Just Accept Any Warnings ) : Public Website Address:...
    Downloads: 27 This Week
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  • 25
    Koha Library Management System

    Koha Library Management System

    Free & Open Community Edition Server in a Complete Virtual Machine

    This VM is created for 2 reasons: 1. Very little initial setup work required to make a Library Management System live, within minutes. 2. This system should keep running for Years, without requiring Updates / Breakages. If you are new to Virtual Machines, then please watch the Video below ( taken from my other project. just replace td with koha wherever mentioned ) After starting this VM, please access these websites ( Just Accept Any Warnings ) : Public Website Address:...
    Downloads: 50 This Week
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