Showing 1729 open source projects for "web based invoice"

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  • 1
    Web Dev for Beginners

    Web Dev for Beginners

    About 24 Lessons, 12 Weeks, Get Started as a Web Developer

    Web-Dev-For-Beginners is Microsoft’s open source, project-based curriculum for learning web development from scratch. Designed as a 12-week, 24-lesson course, it covers HTML, CSS, and JavaScript fundamentals through hands-on projects like terrariums, browser extensions, and space games. Each lesson includes a mix of pre-lecture quizzes, written content, assignments, challenges, and post-lecture quizzes to reinforce learning.
    Downloads: 6 This Week
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  • 2
    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: 2 This Week
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  • 3
    freeCodeCamp

    freeCodeCamp

    freeCodeCamp.org's open-source codebase and curriculum

    freeCodeCamp is a nonprofit educational platform that offers a self-paced curriculum for learning web development, programming, data visualization, APIs, and algorithms. It features interactive coding challenges, real-world projects, and guided progress through topic modules, culminating in certificates for completed tracks. A key aspect is that students contribute to open-source projects for nonprofits or internal tooling as part of their learning, reinforcing both technical and...
    Downloads: 22 This Week
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  • 4
    Skills Service

    Skills Service

    SkillTree is a micro-learning gamification platform

    Skills Service is an open-source microservice developed by the NSA that provides gamified skills tracking for developers. It enables organizations to define, track, and reward skill acquisition and progress through a customizable and modular system. Developers earn points and levels by completing tasks or learning activities, with progress tracked via a web UI or REST API. It is designed to foster a culture of continuous learning, provide visual skill feedback, and promote user engagement...
    Downloads: 6 This Week
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  • 5
    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: 25 This Week
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  • 6
    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: 33 This Week
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  • 7
    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: 11 This Week
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  • 8
    CodeWorld

    CodeWorld

    Educational computer programming environment using Haskell

    CodeWorld is an educational programming environment that uses a Haskell-inspired language to teach computational thinking through graphics and interactive animation. The web-based IDE provides immediate visual feedback: students write code that draws shapes, composes pictures, and responds to events to build simple games and simulations. Its API emphasizes mathematics and geometry rather than low-level UI details, making it approachable for classrooms and self-learners. Projects run in the browser, leveraging a compiler pipeline that turns the high-level code into JavaScript so no installation is required. ...
    Downloads: 2 This Week
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  • 9
    eLabFTW

    eLabFTW

    Open source electronic lab notebook for research labs

    eLabFTW is a modern, open-source electronic laboratory notebook (ELN) that helps research teams store, organize, and manage experimental records and laboratory data from a central web interface. Designed for scientific environments, the software provides a secure, browser-accessible platform where users can log protocols, results, and observations in structured records that replace traditional paper notebooks. Beyond simple experiment journaling, eLabFTW includes an inventory database for...
    Downloads: 5 This Week
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  • 10
    Best-of Python

    Best-of Python

    A ranked list of awesome Python open-source libraries

    This curated list contains 390 awesome open-source projects with a total of 1.4M stars grouped into 28 categories. All projects are ranked by a project-quality score, which is calculated based on various metrics automatically collected from GitHub and different package managers. If you like to add or update projects, feel free to open an issue, submit a pull request, or directly edit the projects.yaml. Contributions are very welcome! Ranked list of awesome python libraries for web development. Correctly generate plurals, ordinals, indefinite articles; convert numbers. ...
    Downloads: 4 This Week
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  • 11
    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.
    Downloads: 2 This Week
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  • 12
    Realtime Chat Application

    Realtime Chat Application

    Build and deploy a real time chat application

    ...The goal is to teach production-adjacent concepts such as minimal state management, basic routing, and environment configuration without overwhelming the learner. The project has been widely referenced by learners tackling socket-based chat as an entry point to real-time web development.
    Downloads: 1 This Week
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  • 13
    refbase - Web Reference Database

    refbase - Web Reference Database

    Online bibliographic manager for research groups. Zotero-compatible.

    refbase is a web-based bibliographic manager which can import and export references in various formats (including BibTeX, Endnote, MODS XML, and OpenOffice). It can make formatted lists of citations and offers powerful searching, rich metadata, and RSS.
    Downloads: 2 This Week
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  • 14

    Rapid Reference

    An extension that allows for hassle-free website citation/referencing.

    Please do not distribute with the goal of selling my program. How to attach to your Chrome/Edge/Brave etc Browser: 1. Download the extension(rapidreference.zip) 2. Extract 3. Go to chrome://extensions if on Chrome, or navigate to your extension management setting in your browser 4. Enable developer mode (usually top right) 5. Add unpacked extension 6. Choose the extracted extension's folder 7. There you go! How to use: 1. Start a session in the panel of the...
    Downloads: 0 This Week
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  • 15
    Moodle

    Moodle

    A free course management system (CMS) to create online learning sites

    Moodle is a Course Management System (CMS), also known as a Learning Management System (LMS) or a Virtual Learning Environment (VLE). It is a Free web application that educators can use to create effective online learning sites. https://moodle.org/
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    Downloads: 461 This Week
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  • 16
    Ufficio Zero Linux OS

    Ufficio Zero Linux OS

    Linux Desktop OS for professionals

    Ufficio Zero Linux OS is a desktop operating system offered in many versions based on PCLinuxOS, Linux Mint and Devuan. We also have created Duplica, a Bare Metal Restore Solution. This distro has many packages for professional use. The project is managed by the Italian company SIITE SRLS and promoted by the Italian Association Boost Media APS. Ufficio Zero Linux OS is trademarked through the Linux Mark Institute. All rights reserved. Linux® is the registered trademark of Linus...
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    Downloads: 53,495 This Week
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  • 17
    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: 188 This Week
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  • 18
    LWT ◆ Learning With Texts [Official]

    LWT ◆ Learning With Texts [Official]

    A feature-rich web application for language learning through reading

    LWT is a tool for Language Learning, inspired by: - Stephen Krashen's principles in Second Language Acquisition, - Steve Kaufmann's LingQ application, and - ideas from Khatzumoto - published at AJATT - All Japanese All The Time. You define languages you want to learn and import texts you want to use for learning. While listening to the audio (optional), you read the text, save, review and test words or multi-word expressions. In new texts all your previously saved words and expressions...
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    Downloads: 28 This Week
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  • 19
    Jmol

    Jmol

    An interactive viewer for three-dimensional chemical structures.

    Over 1,000,000 page views per month. Jmol/JSmol is a molecular viewer for 3D chemical structures that runs in four independent modes: an HTML5-only web application utilizing jQuery, a Java applet, a stand-alone Java program (Jmol.jar), and a "headless" server-side component (JmolData.jar). Jmol can read many file types, including PDB, CIF, SDF, MOL, PyMOL PSE files, and Spartan files, as well as output from Gaussian, GAMESS, MOPAC, VASP, CRYSTAL, CASTEP, QuantumEspresso, VMD, and many other...
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    Downloads: 905 This Week
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  • 20
    Kiwix

    Kiwix

    Wikipedia offline & more

    Kiwix is an offline reader for Web content. It's especially intended to make Wikipedia available offline. With Kiwix, you can enjoy Wikipedia on a boat, in the middle of nowhere... or in Jail. Kiwix manages to do that by reading ZIM files, a highly compressed open format with additional meta-data.
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    Downloads: 100 This Week
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  • 21
    Typing Guru

    Typing Guru

    SUPORTS: Hindi, English, Nepali, Tamil, Punjabi, Urdu,Bengali,Marathi.

    Web Version: https://typing-guru.com/ This software is developed on the view of beginners how they can increase typing speed. There is a step-by-step process to increase typing speed. This is available for Linux and windows both. Supports: Hindi Typing, English Typing, Nepali Typing, Tamil Typing, Punjabi Typing, Urdu Typing, Bengali Typing, Marathi Typing, Telugu Typing. More language will be added if you request in reviews. Tags: Typing Guru, typing tutor 6, Marathi...
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    Downloads: 137 This Week
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  • 22
    Klavaro Touch Typing Tutor

    Klavaro Touch Typing Tutor

    A very efficient tutor.

    A touch typing tutor very flexible, supporting customizable keyboard layouts. You can edit and save new or unknown keyboard layouts, as the basic course was designed to not depend on specific ones. Also, there are some charts about the learning process.
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    Downloads: 827 This Week
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  • 23
    forma.lms

    forma.lms

    forma.lms is a Learning Management System (LMS), opensource lms

    forma.lms is an open-source, web-based elearning platform (learning management system - LMS), used to manage and deliver online training courses. It's focused on corporate training needs. The projects forma.lms ((aka formalms) was originally created as a fork of Docebo CE v 4.0.5. The support comnunity of forma.Lms is active on https://forum.formalms.org/
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    Downloads: 53 This Week
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  • 24
    The Linux Schools Project
    A server operating system designed for schools, providing a simple graphical interface for easy installation and maintenance of your network. Also available is a client version that intergrates completely with the server.
    Downloads: 7 This Week
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  • 25
    Django LMS

    Django LMS

    A learning management system using django web framework

    django-lms is an open-source Learning Management System (LMS) built with Django and designed for ease of use and extensibility. It allows administrators to manage courses, lessons, quizzes, and users in an educational environment. The project includes a clean UI and backend tools to help educators create and track learning content.
    Downloads: 1 This Week
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