Apps to Lightweight

Telephone is a user-friendly SIP softphone application for macOS that enables encrypted voice calls over the internet or a private network. It supports various codecs and offers features like call recording, address book integration, and secure communication.

Screencast Capture Lite is a versatile and lightweight application designed for capturing screen activity. It enables users to take screenshots, record videos of their desktop, and even stream live content.

Parcellite is a minimalist and highly efficient clipboard manager designed specifically for Linux systems. It provides a simple yet powerful way to keep track of your copy/paste history, manage frequently used snippets, and improve workflow without consuming significant system resources.

Skeleton is a minimalist boilerplate for responsive development. It provides essential CSS styles and a simple grid system to kickstart adaptive projects without the bloat of larger frameworks. Ideal for smaller projects or developers who prefer building upon a clean foundation.

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.

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.

Tizen OS is an open-source, Linux-based operating system designed to power a wide range of devices. Developed by a collaborative effort led by Samsung, it offers a lightweight and versatile platform for smartphones, smart TVs, wearables, and more, with a focus on web technologies and a flexible architecture.

Otr.to is a secure, privacy-centric, browser-based chat client leveraging Off-the-Record (OTR) encryption. It offers peer-to-peer communication for enhanced anonymity and decentralization, making it a strong choice for private and secure instant messaging without requiring installations.

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.

DeeperWeb is a privacy-focused metasearch engine that enhances Google search results using tag cloud and topic map techniques for improved navigation and discovery. It prioritizes user privacy by not tracking searches.

PWGen is a robust and open-source random password generator designed for strong cryptographic security. It leverages user input and system parameters to generate highly unpredictable passwords, essential for safeguarding your online identity and sensitive information. This utility focuses purely on creating secure passwords without storing or managing them.

Editra is a robust, cross-platform text editor designed with developers in mind. It's open-source, highly customizable through plugins, and features essential tools for coding like syntax highlighting, code completion, and an embedded terminal.

Tint Browser is a discontinued open-source web browser for Android 4+ focusing on customization, privacy, and a lightweight design. It offered a tabbed interface, bookmark management, and built-in ad blocking, catering to users seeking an alternative to mainstream browsers with more control.

GNOME System Monitor is a fundamental utility for the GNOME desktop environment, providing users with detailed real-time information about system performance, running processes, and resource utilization. It's an essential tool for diagnosing performance issues and managing system resources effectively.

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.

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.

ConsoleZ is a highly customizable tabbed console emulator for Windows. Building upon the foundation of Console 2, it offers enhanced visual rendering, improved compatibility with modern Windows versions (Vista, 7, 8, 10), and a wealth of features for power users and developers.

AOKP (Android Open Kang Project) is a highly customizable, open-source Aftermarket Firmware based on Android, designed to replace the stock operating system on smartphones and tablets, offering enhanced control, privacy, and performance.

Fat-Free Framework (F3) is a powerful yet easy-to-use PHP micro-framework designed for building dynamic and robust web applications. It emphasizes performance, a small footprint, and a straightforward modular design.

Anomos was a groundbreaking P2P file sharing protocol built upon the foundation of BitTorrent, specifically designed to provide enhanced anonymity and privacy for users. It aimed to address the inherent traceability issues present in traditional BitTorrent networks by routing traffic through a mix network structure.

ffdshow tryouts is a versatile DirectShow and Video for Windows codec pack supporting a wide array of audio and video compression formats. It excels in decoding and encoding various media types, making it an essential tool for media playback and processing on Windows systems. Its strength lies in its comprehensive format support and extensive filtering capabilities.

xterm is the venerable and highly configurable terminal emulator for the X Window System. It provides a robust and independent command-line interface for interacting with processes, primarily Unix shells, across multiple concurrent windows.

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.

RBTray is a compact, open-source utility for Windows that enables users to minimize almost any application window directly to the system tray. By simply right-clicking the minimize button of a window, RBTray tucks it away, reducing clutter on the taskbar and providing quick access when needed. It's ideal for keeping less frequently used applications organized and out of sight, while remaining easily accessible.

Cherokee is a powerful, open-source web server known for its speed, configurability, and lightness. It's designed for modern web applications, offering high performance and a user-friendly configuration interface.

Cocos2d-x is a renowned open-source, cross-platform 2D game engine. Favored by mobile game developers for its efficiency and ease of use, it provides a robust framework for creating engaging 2D games with excellent performance across multiple devices and operating systems. Its flexibility and extensive feature set cater to both beginners and experienced developers.

Xfce Terminal is a lightweight and user-friendly terminal emulator designed specifically for the Xfce desktop environment. It offers essential features for command-line interaction without being overly resource-intensive.

Lightning Browser is a minimalist and fast web browser for Android that prioritizes privacy, security, and efficiency. Built with Material Design principles, it offers a clean interface and essential browsing features without unnecessary bloat.

Polymer is a JavaScript library developed by Google for building web applications using reusable custom HTML elements. It simplifies the creation of complex user interfaces by leveraging modern web standards.

rdesktop is an open-source client for Microsoft's Remote Desktop Protocol (RDP), allowing users on various operating systems to connect to Windows machines remotely. It is known for its lightweight and efficient design.