Showing 352 open source projects for "qt-based"

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  • 1
    Mermaid

    Mermaid

    Diagram and flowchart generation from text similar to markdown

    Mermaid is a JavaScript-based diagram and flowchart generating tool that uses markdown-inspired text for fast and easy generation of diagrams and charts. Forget about using heavy tools to explain your code. Mermaid greatly simplifies documentation with its simple markdown-like script language, and offers a great range of diagram and chart options. The latest version of Mermaid comes with a number of bug fixes and enhancements, as well as a new diagram type, entity relationship diagrams. ...
    Downloads: 54 This Week
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  • 2
    Blockly

    Blockly

    The web-based visual programming editor

    The Blockly library adds an editor to your app that represents coding concepts as interlocking blocks. It outputs syntactically correct code in the programming language of your choice. Custom blocks may be created to connect to your own application. Blockly in a browser allows web pages to include a visual code editor for any of Blockly's five supported programming languages, or your own. Blockly plugins are self-contained pieces of code that add functionality to Blockly. Blockly codelabs...
    Downloads: 54 This Week
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  • 3
    uPlot

    uPlot

    Chart for time series, lines, areas, ohlc and bars

    μPlot is a fast, memory-efficient Canvas 2D-based chart for plotting time series, lines, areas, ohlc & bars; from a cold start it can create an interactive chart containing 150,000 data points in 135ms, scaling linearly at ~25,000 pts/ms. In addition to fast initial render, the zooming and cursor performance is by far the best of any similar charting lib; at ~40 KB, it's likely the smallest and fastest time series plotter that doesn't make use of context-limited WebGL shaders or WASM, both of which have much higher startup cost and code size. ...
    Downloads: 16 This Week
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  • 4
    Emoji Picker Element

    Emoji Picker Element

    A lightweight emoji picker for the modern web

    Emoji Picker Element is a lightweight emoji selector distributed as a standards-based web component. It supports Emoji 17.0 where the operating system provides compatible glyphs and can also display application-defined custom emoji. Emoji data is stored in IndexedDB, reducing repeated downloads and keeping the full dataset out of memory. Native system emoji are rendered by default, with optional support for custom emoji fonts.
    Downloads: 12 This Week
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    iCn3D

    iCn3D

    Web-based protein structure viewer and analysis tool

    "I see in 3D" (iCn3D) Structure Viewer is not only a web-based 3D viewer, but also a structure analysis tool interactively or in the batch mode using NodeJS scripts based on the npm package icn3d. iCn3D synchronizes the display of 3D structure, 2D interaction, and 1D sequences and annotations. Users' custom displays can be saved in a short URL or a PNG image. The complete package of iCn3D including Three.js and jQuery is in the directory "dist" after you get the source code with the "Code" button. ...
    Downloads: 2 This Week
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  • 6
    Cropper.js

    Cropper.js

    JavaScript image cropper

    ...If you are using cropper in a modal, you should initialize the cropper after the modal is shown completely. Otherwise, you will not get the correct cropper. The outputted cropped data is based on the original image size, so you can use them to crop the image directly. If you try to start cropper on a cross-origin image, please make sure that your browser supports HTML5 CORS settings attributes, and your image server supports the Access-Control-Allow-Origin option (see the HTTP access control (CORS)). You may set cropper options with new Cropper(image, options). ...
    Downloads: 9 This Week
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  • 7
    SVGO

    SVGO

    Node.js tool for optimizing SVG files

    ...Some options can be configured with CLI though it may be easier to have the configuration in a separate file. SVGO has a plugin-based architecture, so almost every optimization is a separate plugin.
    Downloads: 1 This Week
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  • 8
    Vizzu

    Vizzu

    Library for animated data visualizations and data stories

    Vizzu is a free, open-source Javascript/C++ library utilizing a generic dataviz engine that generates many types of charts and seamlessly animates between them. It can be used to create static charts but more importantly, it is designed for building animated data stories and interactive explorers as Vizzu enables showing different perspectives of the data that the viewers can easily follow due to the animation. Create a placeholder element that will contain the rendered chart. The Vizzu...
    Downloads: 5 This Week
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  • 9
    jsconsole

    jsconsole

    Web based console - for presentations and workshops

    jsconsole is a web-based interactive JavaScript console designed to make it easy to run and present live JavaScript code directly in the browser, which is especially handy for workshops, presentations, and remote debugging scenarios. It provides an in-browser REPL-style environment where you can type JS expressions and see output instantly, making it useful for teaching, debugging snippets, or demonstrating ideas without setting up a local development environment.
    Downloads: 0 This Week
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  • 10
    glMatrix

    glMatrix

    Javascript Matrix and Vector library for High Performance WebGL apps

    Javascript has evolved into a language capable of handling realtime 3D graphics, via WebGL, and computationally intensive tasks such as physics simulations. These types of applications demand high performance vector and matrix math, which is something that Javascript doesn't provide by default. glMatrix to the rescue! glMatrix is designed to perform vector and matrix operations stupidly fast! By hand-tuning each function for maximum performance and encouraging efficient usage patterns...
    Downloads: 2 This Week
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  • 11
    Spectacle

    Spectacle

    A ReactJS based Presentation Library

    Spectacle is an open source presentation library based on React.js. It lets you create sleek presentations using JSX syntax, giving you the ability to live demo your code. Spectacle’s presentations are lively and interactive, with clickable elements, themes, custom backgrounds, animations, and many other fun and unique elements you can add to make your presentations pop. With Spectacle you can also live demo your code in real time without having to leave the presentation deck. ...
    Downloads: 0 This Week
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  • 12
    anime.js

    anime.js

    JavaScript animation engine

    anime.js is a lightweight JavaScript animation library that allows you to create complex animations with a single, powerful API. It works with just about anything web-based: CSS properties, SVG, DOM attributes and JavaScript Objects. anime.js makes it easy to create layered and complex animations, and gives you full control of timing and triggering events so they move exactly how and when you want them. It supports some of the latest browsers, and offers plenty of examples and demonstrations to get you animating in no time. ...
    Downloads: 1 This Week
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  • 13
    Paper.js

    Paper.js

    The swiss army knife of vector graphics scripting

    ...It offers a clean Scene Graph / Document Object Model and a lot of powerful functionality to create and work with vector graphics and bezier curves, all neatly wrapped up in a well designed, consistent and clean programming interface. Paper.js is based on and largely compatible with Scriptographer, a scripting environment for Adobe Illustrator with an active community of scripters and more than 10 years of development. Paper.js is easy to learn for beginners and has lots to master for intermediate and advanced users. Paper.js is developed by Jürg Lehni & Jonathan Puckey, and distributed under the permissive MIT License. ...
    Downloads: 1 This Week
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  • 14
    Christmas Tree

    Christmas Tree

    Just a simple Christmas tree, based on reddit story

    atree is a lightweight JavaScript library for managing and visualizing hierarchical tree data structures in a flexible and efficient way. It offers core abstractions for creating nodes, building parent–child relationships, and traversing trees with utilities for depth, breadth, and custom iteration strategies. Because tree structures are ubiquitous in computing—from file systems and organizational charts to DOM structures and evolutionary taxonomies—atree provides a reusable foundation for...
    Downloads: 0 This Week
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  • 15
    frame.js

    frame.js

    JavaScript Sequence Editor

    frame.js is a tiny utility for orchestrating frame-based animations with requestAnimationFrame while keeping code clean and predictable. It abstracts the boilerplate of setting up a render loop, tracking elapsed time, and updating callbacks at the right cadence. By providing a simple lifecycle—start, stop, tick—it encourages separation between state updates and rendering, which is essential for smooth visuals.
    Downloads: 0 This Week
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  • 16
    Lottie-Web

    Lottie-Web

    Render After Effects animations natively

    Lottie-Web renders vector animations exported from Adobe After Effects as lightweight JSON, playing them in the browser via SVG or Canvas. Animations remain crisp at any resolution, load quickly compared to videos or GIFs, and can be controlled programmatically for interactivity. The runtime supports playback options like loop, autoplay, segment control, and event hooks, making it easy to sync motion with UI state. Because animations are data rather than pixels, designers and developers can...
    Downloads: 0 This Week
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  • 17
    Render Farm Manager, Project Tracker.

    Render Farm Manager, Project Tracker.

    CGRU: Afanasy render farm manager and RULES project tracker.

    CGRU is an open source CG tools pack, includes Afanasy render farm manager and RULES project tracker.
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    Downloads: 43 This Week
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  • 18
    lcd-image-converter

    lcd-image-converter

    Tool to create bitmaps and fonts for embedded applications.

    This program allows you to create bitmaps and fonts, and transform them to "C" source format for embedded applications. The transformation of the images to the source code is made by using templates. Therefore, by modifying the templates, you can change the format of the output within certain limits.
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    Downloads: 331 This Week
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  • 19
    FlightGear - Flight Simulator

    FlightGear - Flight Simulator

    FlightGear Flight Simulator: free open-source multiplatform flight sim

    Founded in 1997, FlightGear is developed by a worldwide group of volunteers, brought together by a shared ambition to create the most realistic flight simulator possible that is free to use, modify and distribute. FlightGear is used all over the world by desktop flight simulator enthusiasts, for research in universities and for interactive exhibits in museums. FlightGear features more than 400 aircraft, a worldwide scenery database, a multi-player environment, detailed sky modelling, a...
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    Downloads: 3,648 This Week
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  • 20
    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: 1,421 This Week
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  • 21
    RECOIL

    RECOIL

    Retro Computer Image Library

    Retro Computer Image Library decodes Amiga, Amstrad CPC, Apple II, Atari 8-bit, Atari Portfolio, Atari ST/TT/Falcon, BBC Micro, Commodore 64, Commodore 16/116/Plus4, Commodore 128, Electronika BK, FM Towns, HP 48, Macintosh 128K, MSX, NEC PC-80/88/98, Oric, SAM Coupe, Sharp X68000, Tandy 1000, Timex 2048, TRS-80, TRS-80 Color Computer, ZX81 and ZX Spectrum picture formats. The project contains a simple viewer, plug-ins for general-purpose image viewers and editors, and an everything-to-png converter.
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    Downloads: 163 This Week
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  • 22
    FCP-File-Converter-Pro-Up-to-Date

    FCP-File-Converter-Pro-Up-to-Date

    Fast, private and offline file conversion for Windows

    File Converter Pro is a fast, local Windows application for converting images, videos, audio, document and 3D files. It supports batch processing, audio transcription, ZIP export, temporary storage, secure source deletion, and automatic updates. Conversions remain private on your computer
    Downloads: 48 This Week
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  • 23
    anchorcastapp

    anchorcastapp

    Free AI-powered church presentation & live sermon display app

    AnchorCast is a free, open-source AI-powered church presentation desktop app for Windows and MacOS, built with Electron. Features: - Live Sermon Transcription — real-time speech-to-text via Whisper AI - AI Bible Verse Detection — automatically detects and displays verses from live sermons - Song Manager — display song lyrics on projection - Media Playback — images and video on projection screen - NDI Output — stream projection over local network - Remote Control — control...
    Downloads: 10 This Week
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  • 24
    Flow Teleprompter

    Flow Teleprompter

    A Windows first teleprompter with voice tracking and AI drafting.

    Flow is an ultra-lightweight, high-performance teleprompter for Windows built with Rust and Tauri. Designed for creators, presenters, and educators, Flow delivers a smooth, distraction-free reading surface with minimal CPU and RAM usage. Key Features: - 5 Playback Modes: Offline Voice Tracking (via local Vosk models), Word Highlight, Line-by-Line, Arrow Guide, and Continuous Smooth Scrolling. - Script Library & Manager: Save, search, organize, and switch between multiple scripts locally...
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    Downloads: 36 This Week
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  • 25
    RhinOS

    RhinOS

    RhinOS, CMS, Content Management System, Josep Sanz Campderrós

    RhinOS is a framework to develop web sites using the latest features to provide a fastest access and administration to the web portal. The main features are: - Parametrized CMS and simple and efficient pseudo-code parser.
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    Downloads: 3 This Week
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