Open-source alternatives to Carnac

Catime is a lightweight desktop timer application written in C. It provides tools for managing countdowns, stopwatches, and Pomodoro sessions while maintaining a minimal memory footprint. The application features a transparent timer overlay that renders on top of other windows and a system tray resource monitor that displays real-time CPU and memory usage. It also includes the ability to display animated graphics within the system tray. The software supports productivity workflows by automatically launching specified external programs when a timer expires. Users can further customize the int

Input Overlay is a system for rendering real-time keyboard, gamepad, and mouse activity as an on-screen visual display. It functions as an input event broadcaster that captures physical hardware signals and transmits them to a rendering client for use in recording and live broadcasting software. The project includes a layout configuration tool that uses structured JSON files to map hardware events to specific textures and screen coordinates. It also provides a mechanism to convert legacy configuration files into current schemas to ensure compatibility across versions. The software covers inp

This project is an AI meeting assistant and interview copilot that monitors system audio and screen content to generate real-time responses during video calls. It functions as a system audio transcription tool and a context-aware prompt manager, injecting user documents and behavioral profiles into large language model prompts to tailor AI outputs. The system features a stealth screen overlay, utilizing a transparent window that displays information on top of other applications while remaining invisible to screen-sharing software and proctoring tools. It employs a process-hiding mechanism to

Code Surfer is a web-based code slide framework and presentation tool designed for creating technical slides. It functions as a code animation library and diff visualizer that enables the rendering of source code with animated transitions, zooming, and highlighting. The project focuses on visualizing code evolution through state morphing and diff animations. It uses coordinate-based view transitions and smooth scrolls to guide viewers through changes between different code versions across a slide deck. The framework provides capabilities for attention management via line-level focus, section

Mate-Engine is a 3D desktop avatar engine designed to render interactive characters that float on the desktop and react to system events. It functions as a virtual assistant platform, combining an interactive character renderer with an interface that connects local language models to 3D avatars for desktop conversations. The engine features a custom 3D model loader that imports third-party humanoid models using standard rigging and bone naming conventions. It includes an audio-reactive animation system that monitors live audio output from applications to automatically trigger dance sequences

QuickRecorder is a screen recording software designed for capturing desktops, application windows, and system audio. It functions as a multi-device video recorder and tutorial capture tool, synchronizing video feeds from a computer and connected mobile devices into a single stream. The system distinguishes itself through an alpha-channel video exporter that produces recordings with transparent backgrounds. It also includes a presenter overlay system that renders a floating camera feed over screen captures and a specialized tutorial toolset that provides mouse movement highlighting and a magni

This project is a React presentation component designed to create animated code sliders and step-by-step walkthroughs. It functions as a code presentation tool that allows users to highlight syntax and transition between different versions of a codebase during technical demonstrations. The tool enables the creation of animated code walkthroughs by rendering snapshots of code that transition through incremental changes. These sequences are navigated via keyboard inputs, allowing a presenter to advance through code steps to explain logic changes in a live demo. The system provides capabilities

Lite XL is a lightweight, cross-platform text editor built around a minimal C core that embeds a Lua interpreter, allowing the entire editor interface and functionality to be scripted and customized through Lua. It draws text and UI elements directly to a pixel buffer using a single-threaded event loop, bypassing heavyweight widget toolkits to keep the editor fast and responsive even on low-resource hardware. The editor distinguishes itself through its Lua-based plugin architecture and file-based configuration system, where settings, keybindings, and plugin metadata are stored as plain Lua fi

Flutter Boost is a hybrid integration framework that embeds Flutter screens inside existing native iOS, Android, and OHOS applications. It provides a cross-platform page router that navigates between native and Flutter pages using a unified page-name scheme, along with lifecycle-aware engine binding that ties the Flutter engine to native platform lifecycle events for proper start, pause, and resume behavior. The framework also includes multi-engine instance management, allowing separate Flutter engine instances per tab to maintain independent page state. The framework distinguishes itself thr

Cropper is a JavaScript image cropping library and HTML5 canvas image editor. It serves as a web-based image manipulation tool that allows users to visually select and trim specific areas of an image directly within a browser. The library provides a visual interface for defining precise crop areas with configurable aspect ratios and zoom controls. It includes tools to rotate, scale, and zoom images to align subjects before exporting the final result. The tool handles browser-based image processing by generating a canvas element from a selected image area for use or download. It manages crop

Flight is a JavaScript component framework and DOM interactivity library used to map behavioral logic to HTML nodes. It provides an event-driven architecture for building modular user interface elements and managing web application interactivity. The library distinguishes itself through a mixin-based system for injecting reusable functions and properties into components, promoting code reuse without rigid inheritance. It further enables behavior modification via function hooking, allowing developers to wrap existing methods to inject custom logic without altering the original source code. Th

Noctalia Shell is a modular Wayland desktop shell that provides a user interface consisting of status bars, launchers, and notifications for Wayland compositors. It is built as a plugin-based desktop environment that utilizes declarative configuration for managing system defaults, wallpapers, and plugin installations. The project features a dynamic desktop theming engine that extracts color palettes from wallpapers to theme the shell and external applications. This is supported by an inter-process communication bridge that exposes endpoints, allowing external scripts and keybindings to trigge

react-syntax-highlighter is a React component that renders source code with language-specific syntax coloring. It wraps the Prism and Highlight.js syntax highlighting libraries, tokenizing source code using their language grammars and mapping each token to a styled React element. The component operates in two styling modes: inline style objects applied directly to each token, or CSS class names that can be themed via external stylesheets. This dual-mode approach makes the highlighter portable across environments where CSS class injection may or may not be available. The component is built aro

Peek is a desktop screen recorder for Linux systems designed to capture specific rectangular areas of the display. It functions as an animated image and video creator, allowing users to record short, silent screencasts of desktop activity. The application provides a focused workflow for generating visual content, such as instructional documentation, bug reports, and project updates. It enables users to export recordings in various formats and includes options to optimize the quality and file size of animated images for web integration. The software utilizes native display protocols to manage

Kap is an open-source screen recording application designed to capture desktop activity as video or image files. It provides a comprehensive workflow for recording screen sessions, including options for capturing system audio and highlighting mouse clicks to assist in the creation of instructional content. The application distinguishes itself through a modular, plugin-based architecture that allows for the integration of external services for sharing and uploading media. It utilizes a background transcoding utility to process and convert captured recordings into various formats, such as GIF,

Terminalizer is a command-line utility designed to record, edit, and share terminal sessions. It captures raw input and output streams from terminal processes, storing them in structured files that preserve the exact sequence of commands and their visual results for future review, archiving, or documentation. The tool distinguishes itself by offering extensive visual customization and flexible export options. Users can modify the timing, content, and appearance of recordings—including themes, fonts, and window frames—through a configuration schema. These sessions can be rendered into high-qua

Editly is a headless, programmatic video engine and automated assembler. It functions as a declarative video editor that generates MP4 and GIF exports from structured data or code, removing the need for a manual graphical user interface. The system is distinguished by its ability to integrate GLSL fragment shaders as visual layers within a programmatic timeline. It uses a configuration-based model to define clips, layers, and audio tracks, allowing for reproducible video assembly and the generation of custom programmatic graphics. The engine covers a broad range of media production capabilit

OpenTabletDriver is a user-mode graphics tablet driver and USB HID input manager that translates raw USB input from digitizer hardware into system cursor and pen events. It serves as a hardware abstraction layer that normalizes input from various tablet brands into a consistent API, providing a cross-platform pen interface with pressure and tilt sensitivity. The project distinguishes itself through a plugin-based architecture and a profile-based configuration system, allowing for custom filters, interpolators, and persistent hardware setups. It includes specialized tools for hardware driver d

ModernFlyouts is a Windows UI customization tool and system flyout replacer. It provides a set of Fluent Design overlays that replace legacy operating system notifications for volume, brightness, and network connectivity. The project functions as a media control interface and overlay manager, offering extended audio playback tools such as shuffle, repeat, and playback timelines. It uses a visual layer with transparency and contrast support to modify the appearance and behavior of system-level overlays. The software includes capabilities for flyout appearance and behavior management, allowing

This repository is a collection of sample applications and reference projects for integrating on-device machine learning APIs into mobile applications. It provides implementation examples for both Android and iOS, demonstrating how to embed computer vision and natural language processing models. The project covers the implementation of mobile computer vision, including text recognition, face detection, and barcode scanning. It includes workflows for real-time image processing and the integration of pre-trained models that process data locally on the device.

This project is an AI model quota monitoring and management tool for development environments. It provides a centralized interface for tracking remaining request limits, managing multiple authorized API accounts, and orchestrating AI service access. The system synchronizes quota reset cycles and automates model activation through scheduled tasks. It enables the inspection of large language model capabilities, such as context window sizes and supported input types, while allowing models to be clustered into groups based on shared service categories. Real-time usage data is delivered through a

d3-cloud is a JavaScript library for creating non-overlapping word cloud layouts using the D3.js data visualization framework. It serves as a text visualization tool that converts raw text or CSV data into scalable vector graphics and stylized typographic clouds. The library utilizes a spiral-based collision layout algorithm to compute coordinates and rotations, ensuring that words within a visual cluster do not overlap. It maps word frequency to font size and supports a customized layout process where positions are calculated based on text distribution. The system covers data processing for

This project is a web-native presentation framework that renders slide decks from standard HTML or Markdown. It functions as a declarative slide engine, managing navigation, state persistence, and lifecycle events through a configuration-driven interface. By leveraging standard web technologies, it enables the creation of responsive, browser-based presentations that support complex layouts, nested transitions, and interactive content. The framework distinguishes itself through a modular, plugin-based architecture that allows developers to extend core functionality using custom hooks and event

VDO.Ninja is a low-latency peer-to-peer media routing service and video streaming platform designed to integrate remote audio and video feeds into professional production workflows. It functions as a WebRTC broadcast integration tool and studio controller, allowing for the direct transmission of high-definition media between publishers and viewers with minimal delay. The platform distinguishes itself through extensive protocol bridging, converting between WebRTC, WHIP, WHEP, SRT, and RTMP to ensure compatibility across diverse network environments and professional studio software. It includes

This project is a cross-platform mobile navigation library and declarative routing engine. It maps components to named scenes within a centralized configuration to manage application flow and screen transitions. The system distinguishes itself through a variety of specialized navigation patterns, including a mobile drawer navigation system for side menus and a tab navigation framework for organizing top-level views. It also features a modal overlay manager for rendering screens as pop-ups or transparent lightboxes and a deep linking handler that maps incoming URIs to specific application scen

Lyricify-App is a Windows desktop lyrics application and real-time synchronizer that matches scrolling text to the current position of an active audio playback stream. It functions as a media player companion that retrieves and displays lyrics for applications utilizing System Media Transport Controls. The application specifically provides a lyrics display client for Spotify playback, synchronizing text in real time with the audio stream. It uses system media transport controls to track playback data and retrieve metadata across various music applications. The tool covers desktop music enhan

This project is a cross-platform media downloader and graphical user interface wrapper for the youtube-dl command-line tool. It provides a desktop application for fetching audio and video from websites through a visual interface. The application is implemented as a wxPython desktop application, utilizing the wxPython toolkit to provide a windowed environment. It functions as a wrapper that maps visual form inputs to command-line arguments for the underlying backend utility.