Apps to Web-Based

Invidious is a free and open-source alternative front-end to YouTube. It focuses on privacy and performance, offering an ad-free viewing experience without tracking user activity. It provides many features found on YouTube, such as subscriptions, watchlists, and embedding, while prioritizing user control and data protection.

Mockup Designer is an intuitive web-based tool enabling users to rapidly create mockups, wireframes, and simple prototypes. It simplifies the initial stages of design and collaboration with a drag-and-drop interface and real-time co-editing capabilities.

Downpour was a web-based BitTorrent client designed for easy access and management of torrent downloads.

Hypothes.is is a free, open-source web-based annotation tool that allows users to annotate and highlight text on any website. It facilitates collaborative discussion and sharing of ideas alongside the content being read.

Dabblet is an interactive online code playground designed specifically for experimenting with CSS, HTML, and JavaScript. It provides a live preview of your code as you type, making it an excellent tool for web developers to test snippets and share their work.

Webmail Lite is an open-source, self-hosted webmail client designed for individuals and businesses seeking a private and customizable email solution. It offers basic email functionalities with a focus on privacy and control.

Lobsters is a technology-focused social news site where users submit links and engage in discussions. It serves as a curated platform for sharing and discovering technical articles, essays, and news relevant to the tech community, emphasizing quality discourse.

Lychee is a powerful, self-hosted photo management system that allows you to upload, manage, and share your photos with ease. With a beautiful interface, built-in privacy options, and support for various features, Lychee gives you full control over your digital photo collection.

Zöff is a collaborative, real-time music and video platform enabling users to build and manage shared playlists with friends for party environments or remote listening sessions. It integrates with YouTube and other sources for a seamless social music experience.

Xataface is an open-source PHP framework designed to streamline the development of web-based database applications, offering rapid application development capabilities with a focus on MySQL integration.

Tasks is a versatile task management application designed to help individuals and teams organize, track, and prioritize their work effectively. It offers a wide range of features including cloud synchronization, project management tools, and integrations with popular services like Alexa and Dropbox.

OTRS ITSM is a comprehensive IT Service Management solution designed to optimize business processes, manage IT infrastructure, and enhance customer support. It provides a robust set of tools for ticketing, workflow automation, asset management, and knowledge base creation, all delivered through a web-based interface.

Gitblit is an open-source, pure Java stack designed for managing, viewing, and serving Git repositories. It offers a lightweight yet powerful platform with a web interface for collaboration and project management.

BuddyCloud is a secure and decentralized messaging and social networking platform designed for both individual users and organizations. It provides a rich set of tools for real-time communication, group discussions, and content sharing, prioritizing privacy and user control.

xPud is an extremely lightweight and fast LiveCD/LiveUSB distribution based on Ubuntu Linux. Designed for minimal resource usage and rapid boot times, it provides a portable and web-centric computing environment ideal for older hardware, kiosks, and users prioritizing speed and simplicity. Its small size makes it an excellent choice for quick web browsing, multimedia playback, and basic computing tasks directly from removable media.

Diagramo is a robust, open-source web-based diagramming tool perfect for creating flowcharts, graphs, and various diagrams directly in your browser. Built on HTML5, it offers real-time collaboration and flexible export options, making it accessible and versatile.

Flyspray is a powerful yet lightweight, web-based bug tracking system designed to streamline software development and project management workflows. Built in PHP, it offers a customizable platform for tracking bugs, managing tasks, and fostering team collaboration.

EtherCalc is a free and open-source web-based spreadsheet application designed for real-time collaborative editing. It allows multiple users to simultaneously view and edit the same spreadsheet directly in a web browser without requiring any software installation, making it ideal for collaborative data entry and basic calculations.

MIT App Inventor is an intuitive, block-based visual programming environment designed for beginners to create fully functional Android applications. It leverages a drag-and-drop interface within a web browser, removing the complexity of traditional coding and making mobile app development accessible to everyone.

WiDownload is a robust web-based platform designed for seamless file sharing and content discovery across various networks, supporting torrents, direct downloads, and integrating search capabilities for movies, games, and more.

reep.io is a web-based file transfer service enabling direct peer-to-peer file sharing between browsers without size limitations, utilizing WebRTC for secure and efficient transfers.

RainLoop Webmail is a modern, fast, and user-friendly web-based email client designed for ease of use and robust functionality. It provides a clean interface for managing emails, supporting various protocols like IMAP and SMTP, and offers features like PGP encryption and multi-user support.

Miniflux is a simple and efficient web-based RSS feed reader. Designed for minimalists, it helps you stay updated on your favorite news sources without distractions, focusing on clean content presentation and ease of use. Ideal for users seeking a lightweight and fast solution.

VFront is a powerful and open-source web-based front-end for managing various relational databases including MySQL, PostgreSQL, SQLite, and MariaDB. It provides a user-friendly interface for performing database operations without needing command-line access.

SemanticScuttle is an open-source, self-hosted social bookmarking system that emphasizes structured tagging and collaborative knowledge management. It allows users to save, organize, and share bookmarks with a strong focus on semantic relationships between tags.

ERPNext is a comprehensive and user-friendly open-source Enterprise Resource Planning (ERP) software designed for businesses of all sizes. It integrates various business functions like accounting, CRM, manufacturing, sales, purchase, inventory, and project management into a single platform.

Restyaboard is a robust, open-source Kanban board alternative to Trello. It is designed for project management and team collaboration, offering a visual way to manage tasks, track progress, and communicate effectively.

Etherpad is a powerful, open-source web-based editor enabling real-time collaborative document creation and editing. Multiple users can work on the same document simultaneously, seeing each other's contributions instantly and identified by unique colors. Ideal for teams needing seamless co-authoring.

Contao is a versatile, free, and open-source content management system designed for creating professional websites, intranets, and online applications. It emphasizes accessibility, SEO-friendliness, and provides a robust framework for developers.

Scrapy is a powerful, free and open-source web crawling and scraping framework written in Python, designed for extracting structured data from websites efficiently and at scale.