Projects sharing features with Logoly

Photopea is a browser-based image editor that runs entirely in the browser without requiring any downloads or installations, capable of editing both raster and vector graphics. It functions as a multi-format image converter, a PSD file editor, a RAW photo processor, and a vector graphics editor, all within a single web application. The editor distinguishes itself through its extensive file format support, opening and saving industry-standard formats including PSD, AI, Sketch, Figma, and XD, as well as native files from Affinity, InDesign, and Krita. It also supports RAW camera files from Niko

This project is a client-side tool that fetches a GitHub user’s entire contribution history and renders it as a single, continuous timeline chart. It operates entirely in the browser as a single-page application, using the HTML5 Canvas API to draw a pixel-level heatmap where color intensity reflects contribution frequency across every day from account creation to the present. The tool retrieves data through authenticated requests to the GitHub API, then aggregates daily counts into a date-range timeline without requiring any server-side processing. Its output serves as a comprehensive visual

The official rendering library for PAG (Portable Animated Graphics) files that renders After Effects animations natively across multiple platforms.

AndroidNote is a technical knowledge base and reference resource for Android development. It provides comprehensive guidance on application architecture, custom view development, and advanced graphics programming. The project is distinguished by its depth in visual implementation, covering pseudo-3D perspective projections via virtual cameras and complex 2D rendering using Bézier curves and PorterDuff color blending. It also provides detailed methodologies for app modularization and the management of internal libraries through private Maven repositories and JitPack. The reference surface ext

Eros-FE is a TypeScript web frontend designed as a React-based single page application. It provides a component-driven user interface for interacting with backend services and managing application state through a type-safe client. The project utilizes a client-side route manager to swap visible components without full page refreshes and employs a CSS-in-JS styling framework to tie component logic directly to visual presentation. The application covers frontend interface design, client-side state management, and the integration of browser interfaces with backend APIs.

Le Git Graph is a browser-based tool that displays a visual commit graph for any GitHub repository, showing branch structure and commit history directly in the page. It operates as a single-page application that injects the commit graph into existing repository pages without full page reloads, using OAuth to authenticate with GitHub and authorize API requests for commit data. The tool renders commit nodes and branch lines on an HTML canvas element for smooth, high-performance visualization of complex git histories. It filters the commit graph to show only commits from a selected branch, hidin

heatmap.js is a JavaScript data visualization library used to render data density visualizations on a web page. It functions as an HTML5 canvas heatmap library that represents the intensity of data points across a coordinate system using color gradients. The library provides tools for geospatial distribution mapping and user behavior analysis, such as mapping click patterns and interaction hotspots. It is also used to add visual intensity layers to interactive data dashboards to identify trends and anomalies.

Leafer UI is a high-performance HTML5 canvas rendering engine and 2D vector graphics library. It utilizes a hierarchical scene tree to manage shapes, paths, and text, providing a toolkit for building interactive canvas applications and expansive infinite canvases. The engine is designed as a cross-platform canvas toolkit that decouples core logic from the drawing API, allowing it to run across web, mobile, server, and mini-program environments. It distinguishes itself by providing specialized tools for interactive graphic editor development, including hit detection, event bubbling, and transf

Ripple is a full-stack TypeScript web framework and reactive UI library used for building interfaces with server-side rendering. It organizes user interfaces into a hierarchy of reusable, scoped components with built-in state management and client-side hydration. The framework is distinguished by its fine-grained reactivity, which updates specific DOM elements without requiring full component re-renders. It integrates server-side logic and client-side components within a single TypeScript codebase, enabling a unified full-stack development workflow. The system covers a broad range of capabil

Simpl is an HTML, CSS, and JavaScript example library that provides a collection of minimal functional demonstrations of core web technologies and native browser APIs. It serves as a reference implementation and pattern gallery for frontend development, offering practical examples of how to implement common web features. The project showcases a wide range of browser capabilities, including real-time web communication via WebSockets and WebRTC, responsive web design techniques for adaptive layouts, and the implementation of offline workflows using service workers. It also provides demonstratio

signature_pad is a JavaScript library and drawing tool for capturing handwritten digital signatures on an HTML5 canvas. It provides a handwriting capture interface that transforms raw mouse or touch inputs into smooth, professional-looking lines. The project uses Bézier curve interpolation to smooth jagged input points into fluid strokes. It supports the configuration of drawing aesthetics, including pen color, background color, and line width, and includes a history management system for undoing and restoring drawing actions. The library handles the serialization of signature data into poin

JsBarcode is a JavaScript library for generating machine-readable barcodes in both browser and Node.js environments. It supports a wide range of industry-standard symbologies including CODE128, EAN, UPC, CODE39, ITF-14, MSI, Codabar, Pharmacode, and GS1-128, with automatic check digit calculation for formats that require it. The library renders barcodes to HTML canvas elements, scalable SVG graphics, or image elements, and provides a chainable API for creating multiple barcodes sequentially with individual options. It includes automatic checksum computation for EAN, UPC, ITF-14, and MSI forma

This project is a programmable font system and canvas typography engine that renders a geometric sans-serif typeface using raw coordinate data. It functions as a coordinate-based text animator, allowing for the real-time modification of glyph shapes and font weights. The system distinguishes itself through the ability to extract and manipulate the point coordinates of characters to create morphing effects, wave animations, and shape transitions. It enables dynamic weight interpolation and point-to-line visualizations, moving beyond static font rendering to produce procedural typography. The

Apollo Client is a GraphQL client library and data fetching framework used to request data from a GraphQL server and synchronize that state within a frontend application. It functions as a remote state manager and a local state management tool, allowing developers to define client-side schemas and resolvers for data that does not reside on a remote server. The project features a normalized GraphQL cache that identifies objects by ID to ensure referential equality and consistent data updates across different queries. It also includes a GraphQL API mocking tool to simulate server responses and

Backbone is a JavaScript MVC framework and client-side data orchestrator used to structure web applications. It functions as an event-driven UI library and RESTful state manager that synchronizes data models with remote JSON interfaces to maintain consistent application state. The framework coordinates communication between application components through a decoupled event system. It binds data updates directly to the document object model, ensuring that the user interface remains synchronized with the underlying state. It provides tools for frontend data organization, allowing developers to

tsparticles is a JavaScript particle engine and canvas visual effects toolkit used to create animated particle systems, interactive backgrounds, and web animations. It functions as a web animation library that provides a set of compatible wrappers for integration into React, Vue, Angular, and Svelte applications. The engine includes pre-built animation patterns for celebratory effects, such as confetti explosions and fireworks. It allows for the creation of custom JavaScript visualizations through a plugin system that enables the development of specialized shapes and behaviors. The toolkit s

This project is a cross-platform mobile graphing library designed for rendering high-performance animated line charts and data visualizations. It functions as a canvas-based data visualization system and interactive charting component for mobile applications. The library focuses on animated data visualization, using interpolation to create smooth visual transitions between different data sets. It utilizes a GPU-accelerated graphics engine to maintain high frame rates and fluid transitions during data updates. The capability surface includes interaction systems for tracking pan gestures and d

This project is a browser-based, real-time multiplayer action game where players control a character on a 2D canvas to absorb objects and grow in size. It utilizes a Node.js game server and WebSockets to synchronize game state, player movement, and chat across all connected participants. The application is delivered as a dockerized game application, ensuring consistent hosting and deployment across different cloud environments through containerized server environments. The system implements an authoritative server model that processes all game logic and physics to prevent cheating and mainta

jspaint is a web-based reimplementation of Microsoft Paint, built entirely in JavaScript to run in a browser. It recreates the classic desktop application by reverse-engineering the original Win32 API calls and event handling, rendering the entire interface onto an HTML5 canvas for pixel-perfect retro graphics. The project preserves the original file format compatibility with BMP, PNG, GIF, and JPEG, ensuring exact pixel data matches the legacy application. The application maintains a complete undo history stack using compressed image snapshots, and offloads computationally intensive image pr

This is a chart library for rendering interactive data visualizations within WeChat Mini Programs using the Apache ECharts engine. It provides a set of visual components that use 2D canvas interfaces to render line, bar, pie, and scatter plots. The library utilizes a 2D canvas interface to increase drawing speed and resolve visual layering issues. It implements an interactive charting component that supports touch-based data interaction, allowing users to see detailed contextual information through formatted tooltips when tapping or hovering over data points. The project covers mobile data v

Ember.js is a structured JavaScript web framework designed for building scalable web applications. It utilizes a Model-View-Controller architectural pattern and incorporates a component-based UI library, a dependency injection framework, and a client-side routing engine. The framework distinguishes itself through a centralized registry for passing shared services across components and routes, alongside a routing system that maps URLs directly to templates and data models to manage navigation. Its broader capabilities include reactive state synchronization and computation memoization for UI p

Flame is a 2D game engine and framework for Flutter. It provides a component-based architecture to organize scene entities and manage their lifecycles through a structured hierarchy of game objects, coordinated by a consistent game loop. The engine includes a graphics library for rendering animated sprites, particle effects, and external textures. It features a 2D physics integration layer that supports rigid body dynamics and collision detection between entities. The framework covers additional capabilities for game engineering, including user input capture for gestures and gamepads, audio

react-canvas is a library for drawing user interface elements to a hardware-accelerated canvas instead of the standard document tree. It provides a system for rendering components to a canvas to improve rendering speed and frame rates. The project includes a layer manager to organize visual elements and cache expensive drawing operations. It features a text engine capable of rendering multi-line text with precise character metric measurements and truncation, as well as a virtualized list system that processes only visible items to maintain smooth scrolling. Interaction is handled through a c

This project is a collection of technical demonstrations and prototypes that showcase various HTML5 APIs, multimedia capabilities, and web standard implementations. It serves as a frontend technology sandbox and a gallery of implementation proofs-of-concept for modern browser features. The collection includes specialized showcases for HTML5 multimedia, featuring the manipulation of audio, video, and real-time media streams. It also provides a series of experiments focused on prototyping web capabilities to verify technical feasibility and browser support in live environments. The project cov

OpenScreen is screen recording and editing software used to capture screen video and audio with an integrated timeline for trimming, cropping, and playback adjustments. It functions as a comprehensive system for recording, annotating, and exporting audio-visual content. The project includes a dynamic zoom editor for applying manual or cursor-following zooms with adjustable depth and easing. It features a local caption generator that uses on-device transcription to create voiceover captions without uploading data to external servers. Additional specialized tools allow for the integration of we

This repository contains the HTML specification, which defines the core standards for web page structuring, content organization, and document rendering. It establishes the fundamental algorithms for state-machine-based tokenization, tree construction for the document object model, and origin-based security isolation. The specification provides a framework for defining custom elements with independent lifecycles and registries. It also details the requirements for cross-document communication, session history management, and the synchronization of interface properties with content attributes.