Apps to Extensible by Plugins/Extensions

Coccinella is a free and open-source, cross-platform XMPP/Jabber client. It offers secure instant messaging, group chat, voice chat, and a unique interactive whiteboard feature. Designed with privacy and security in mind, Coccinella provides encrypted communications and supports various communication protocols for a flexible messaging experience on Windows, macOS, and Linux.

IP.Board, now part of the IPS Community Suite, is a robust, feature-rich platform for building and managing online communities. It offers a comprehensive set of tools for forums, content management, e-commerce integration, and more, catering to diverse community needs.

Hudson is an extensively customizable continuous integration server that automates the build, test, and deployment of software projects. Designed for on-premises or private cloud deployment, it supports distributed builds and offers a rich plugin ecosystem for broad technology compatibility.

Planship is a versatile project and task management platform designed to streamline team collaboration and increase visibility. It offers a robust set of features for organizing tasks, tracking progress, and managing projects of varying complexities, making it ideal for teams of all sizes seeking improved efficiency and workflow management.

010 Editor is a powerful text and hex editor designed for opening and editing challenging files and disk drives. It supports advanced binary template technology for parsing and analyzing file formats, making it an essential tool for reverse engineering, data recovery, and software development.

LazPaint is a lightweight, portable raster image editor designed for simplicity while offering essential features like layers and various photo effects. It aims to be an accessible alternative to more complex software, making image editing approachable for users seeking a less overwhelming experience.

Sentora is a free and open-source web hosting control panel designed to simplify the management of web servers. It provides a user-friendly interface for administrators and users to control various aspects of their hosting environment, including website management, email accounts, databases, and more.

Hugo is a lightning-fast static site generator written in Go. It's designed for building websites rapidly, offering a flexible templating system, theme support, and a built-in development server for quick previews. Ideal for blogs, portfolios, and documentation sites.

Vanilla is a versatile, open-source forum software built on PHP, designed for creating vibrant online communities. It offers a balance of ease of use and powerful customization options.

DJL (Discontinued Jockey Launcher) is a free and open-source game manager written in Python, designed to consolidate your gaming library. It aims to provide a centralized hub for launching games and managing related aspects, supporting various platforms and features for a streamlined gaming experience.

vBulletin is a widely recognized, robust forum software platform built on a foundation of PHP and MySQL, enabling the creation and management of dynamic online communities and websites with extensive customization options.

ThinkComposer is a highly flexible visual modeling tool designed for users to create rich, structured diagrams based on their specific domain knowledge. It facilitates the organization and visualization of complex information through various diagram types and hierarchical structures, enabling deep understanding and effective communication of ideas.

UberWriter is a discontinued open-source minimalist text editor designed for distraction-free writing with integrated Markdown support, syntax highlighting, and a focus on simplicity. It provides a clean environment for authors and writers.

openCanvas is a robust raster graphics editor specifically designed for digital painting and drawing. It offers a blend of tools for illustrators, manga artists, and digital painters, focusing on a natural drawing experience with advanced brushes, layer management, and unique features like Event function (Instant Reply) for recording and replaying your artistic process.

wxMEdit is a versatile cross-platform text and hex editor, serving as a powerful alternative to the discontinued MadEdit. Built on C++ and wxWidgets, it provides developers and advanced users with robust features for editing text files and binary data.

FluxBB is a lightweight, open-source bulletin board system designed for simplicity, speed, and low resource usage. It offers core forum functionalities with a focus on performance and ease of use, distinguishing itself from more feature-heavy alternatives.

CLion is a powerful, cross-platform Integrated Development Environment (IDE) meticulously crafted for C and C++ development. Offering intelligent code assistance, integrated debugging, and robust build system support, it streamlines the development workflow across various operating systems, making it a top choice for professional C/C++ developers.

Buildbot is an open-source framework for automating the build, test, and release process of software projects. It operates as a job scheduling system, orchestrating various tasks based on code changes and other triggers.

Serif PhotoPlus is a powerful image editing software for Windows, offering a comprehensive suite of tools for photo manipulation, retouching, and creative effects. It was known for its user-friendly interface and robust feature set, catering to both beginners and experienced photographers.

bbPress is a highly focused, minimalist forum software designed for seamless integration with WordPress websites. Developed by the creators of WordPress, it prioritizes speed and simplicity.

Tuleap Open ALM is a comprehensive open-source platform designed for agile project management and software development teams. It integrates various tools like Git, Kanban, Scrum, and issue tracking into a single, unified environment.

Diagram Designer is a free, lightweight vector graphics editor for creating various diagrams, including flowcharts, UML diagrams, illustrations, and slideshows.

PlayClaw is a highly optimized game recording and streaming software designed for gamers. It allows users to capture their gameplay in high quality with minimal performance impact, offering a range of features including in-game overlays, live streaming capabilities, and comprehensive hardware monitoring.

RealWorld Paint is a versatile discontinued graphics editor for Windows, supporting both raster and vector graphics. It offers robust photo retouching tools, layer support, and the ability to create and edit animations like GIFs and APNGs. Its portable nature and clean interface make it a solid option for various image manipulation tasks.

UiPath Studio Community is a powerful, free automation tool for individuals and small teams to design and execute robotic process automation workflows. It's ideal for automating repetitive tasks in desktop and web applications, making daily work more efficient and less prone to human error.

Smartsheet is a dynamic work management platform empowering teams to plan, track, and execute projects efficiently. It combines powerful features like project management, task management, collaboration tools, and automated workflows in a user-friendly, web-based interface.

PyScripter is a free and open-source integrated development environment (IDE) designed specifically for Python on Windows. It is built using Object Pascal and provides a comprehensive set of tools for efficient Python development, including debugging, code completion, syntax highlighting, and more.

CodeLobster PHP Edition is a free, portable IDE designed for rapid development of PHP, HTML, CSS, and JavaScript web applications. It offers robust features like smart autocompletion, an integrated debugger, and a powerful set of tools for efficient coding and debugging.

Ex Falso is a robust, free, and open-source cross-platform audio tag editor designed for meticulous music library management. It provides powerful tools for editing metadata across various audio formats, ensuring your collection is organized, searchable, and consistent.

Futuramo Visual Tickets is a revolutionary project communication and issue tracking tool that transforms bug tracking, request management, and feedback gathering into a visual and collaborative process. It streamlines team workflows and enhances communication by enabling users to report issues directly on screenshots.