Showing 4863 open source projects for "development"

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  • 1
    sitespeed.io

    sitespeed.io

    Monitor, analyze and optimize your website speed and performance

    Sitespeed.io is an open source tool that helps you monitor, analyze and optimize your website speed and performance, based on performance best practices advices from the coach and collecting browser metrics using the Navigation Timing API, User Timings and Visual Metrics (FirstVisualChange, SpeedIndex & LastVisualChange). Measuring performance shouldn’t be hard, you should be able to have full control of your metrics, own your own data and you should be able to do it without paying top...
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  • 2
    pixelmatch

    pixelmatch

    The smallest, simplest JavaScript pixel-level image comparison library

    The smallest, simplest and fastest JavaScript pixel-level image comparison library, originally created to compare screenshots in tests. Features accurate anti-aliased pixels detection and perceptual color difference metrics. Inspired by Resemble.js and Blink-diff. Unlike these libraries, pixelmatch is around 150 lines of code, has no dependencies, and works on raw typed arrays of image data, so it's blazing fast and can be used in any environment (Node or browsers). Compares two images,...
    Downloads: 0 This Week
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  • 3
    Node.js Telegram Bot API

    Node.js Telegram Bot API

    Telegram Bot API for NodeJS

    TelegramBot is an EventEmitter that emits several events. Message, received a new incoming Message of any kind. Depending on the properties of the Message, one of these events may ALSO be emitted, text, audio, document, photo, sticker, video, voice, contact, location, new_chat_members, left_chat_member, new_chat_title, new_chat_photo, delete_chat_photo, group_chat_created, game, pinned_message, poll, dice, migrate_from_chat_id, migrate_to_chat_id, channel_chat_created,...
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  • 4
    ncc

    ncc

    Compile a Node.js project into a single file

    Simple CLI for compiling a Node.js module into a single file, together with all its dependencies, gcc-style. Publish minimal packages to npm. Only ship relevant app code to serverless environments Don't waste time configuring bundlers, it is generally faster bootup time and less I/O overhead. Compiled language-like experience (e.g.: go). For testing and debugging, a file can be built into a temporary directory and executed with full source maps support. Some packages may need some extra...
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  • 5
    chai

    chai

    BDD / TDD assertion framework for node.js

    Chai is a BDD / TDD assertion library for node and the browser that can be delightfully paired with any javascript testing framework. Chai has several interfaces that allow the developer to choose the most comfortable. The chain-capable BDD styles provide an expressive language & readable style, while the TDD assert style provides a more classical feel. Plugins extend Chai's assertions to new contexts such as vendor integration & object construction. Developers can build their own plugins to...
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  • 6
    DataLoader

    DataLoader

    Generic utility to use with an application's data fetching layer

    DataLoader is a generic utility to be used as part of your application's data fetching layer to provide a simplified and consistent API over various remote data sources such as databases or web services via batching and caching. A port of the "Loader" API originally developed by @schrockn at Facebook in 2010 as a simplifying force to coalesce the sundry key-value store back-end APIs which existed at the time. At Facebook, "Loader" became one of the implementation details of the "Ent"...
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  • 7
    Mithril.js

    Mithril.js

    A JavaScript framework for building brilliant applications

    Mithril is a modern client-side JavaScript framework for building Single Page Applications. It's small (< 10kb gzip), fast and provides routing and XHR utilities out of the box. Mithril is used by companies like Vimeo and Nike, and open source platforms like Lichess. Mithril supports IE11, Firefox ESR, and the last two versions of Firefox, Edge, Safari, and Chrome. No polyfills required. By default, Mithril views are described using hyperscript. Hyperscript offers a terse syntax that can be...
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  • 8

    Polymer

    A Web Component library

    Polymer is a lightweight Web Components library that lets you create encapsulated Web Components that work just like standard HTML elements. These elements can be used in building web applications and are reusable. Polymer can be particularly useful when building UI components. Instead of having to constantly rebuild components such as a specific navigation bar or button in different frameworks and for different projects, simply define this component once with Polymer, and you can use it...
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  • 9
    Agent Skills

    Agent Skills

    Production-grade engineering skills for AI coding agents

    Agent Skills is a collection of production-oriented engineering workflows designed for AI coding agents. It packages senior software-development practices into structured Markdown skills that can be loaded into many agent systems. The collection contains 24 skills spanning project definition, planning, implementation, testing, debugging, review, security, documentation, and delivery. Each workflow includes explicit steps, verification gates, and safeguards against skipping important checks. ...
    Downloads: 1 This Week
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  • 10
    Juice

    Juice

    Juice inlines CSS stylesheets into your HTML source

    Given HTML, juice will inline your CSS properties into the style attribute. Juice has a number of functions based on whether you want to process a file, HTML string, or a cheerio document, and whether you want the juice to automatically get remote stylesheets, scripts, and image dataURIs to inline. To inline HTML without getting remote resources, using default options. Juice is exposed as a standard module, and from CLI with a smaller set of options.
    Downloads: 1 This Week
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  • 11
    fuite

    fuite

    A tool for finding memory leaks in web apps

    Fuite is a command-line tool for detecting JavaScript memory leaks in web applications through automated Chrome testing. It launches Chromium with Puppeteer and repeatedly runs user interactions to identify objects that accumulate across iterations. The analyzer checks heap objects, event listeners, DOM nodes, arrays, maps, sets, and plain objects. Its default scenario navigates internal links and returns to the starting page, which works well for client-rendered applications. Custom...
    Downloads: 0 This Week
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  • 12
    GitHub Buttons

    GitHub Buttons

    Showcase the success of any GitHub repo or user

    GitHub Buttons is a lightweight web project for embedding GitHub-related action buttons and live repository or profile statistics on websites. It can display actions such as starring, watching, forking, following, and sponsoring directly from a compact interface. Dynamic counts are retrieved from GitHub so displayed stars, watchers, forks, or followers stay current. Buttons can optionally hide their text or count and can be rendered in regular or large sizes. The project compiles its HTML,...
    Downloads: 0 This Week
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  • 13
    P-Limit

    P-Limit

    Run multiple promise-returning & async functions

    P-Limit is a JavaScript utility for controlling how many promise-returning or asynchronous functions execute at the same time. Developers create a limiter with a chosen concurrency level and run tasks through it instead of launching every operation immediately. The library works in both Node.js and modern browsers. It exposes counts for currently active and waiting tasks so applications can inspect workload state. Pending work can be cleared, and an optional setting can reject discarded...
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  • 14
    Open

    Open

    Open stuff like URLs, files, executables. Cross-platform

    Open is a cross-platform Node.js package for launching URLs, files, directories, and executables from command-line tools or scripts. It uses the operating system's default application unless developers request a specific program. Applications can also pass command-line arguments to the program being opened. The package works across macOS, Windows, Linux, and Windows Subsystem for Linux environments. On Linux, it includes an up-to-date xdg-open implementation, while WSL support can translate...
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  • 15
    zhuzhiliao

    zhuzhiliao

    Traditional toy that makes a wah-wah sound when it spins

    Zhuzhiliao is a browser simulation of the traditional Chinese bamboo cicada toy that makes a distinctive sound when swung in circles. The experience runs from a single dependency-free HTML file and can work offline without a build step or backend. Touch gestures, automatic swinging, and mobile motion sensors can drive the virtual toy. A fixed-step physics model simulates gravity, an elastic string, drag, tension, and rotational speed. Audio uses a real toy recording whose playback changes...
    Downloads: 0 This Week
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  • 16
    image-to-ascii

    image-to-ascii

    A Node.js module that converts images to ASCII art

    image-to-ascii is a Node.js module that converts raster images into character-based terminal artwork. Input can come from a local file, remote URL, or in-memory Buffer. The converter maps pixel brightness to a configurable sequence of ASCII characters. It can preserve the original colors through ANSI foreground or background styles or generate plain monochrome output. Options control width, height, screen fitting, aspect ratio, transparency, reversed brightness, and custom background colors....
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  • 17
    Rules And Scripts

    Rules And Scripts

    Shunt rules, rewrite rules, and scripts

    Rules And Scripts is a large rules-and-scripts repository for traffic routing rules, rewrite rules, and automation scripts. It organizes community-sourced rule material and script resources into a single reference collection. The project is mainly written for learning and research around ES6 and rule-based automation. It includes routing rules, rewrite resources, external collections, icons, blank templates, and automation scripts. Some scripts are prepared for Quantumult X Gallery and...
    Downloads: 0 This Week
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  • 18
    beautiful-html-templates

    beautiful-html-templates

    A library of HTML slide templates

    beautiful-html-templates is a reusable library of HTML slide templates made for coding agents that need to produce polished presentation decks automatically. It gives agents a structured way to choose a visual direction, clone the right template, and adapt it to a user’s content brief. The project includes an index-driven workflow, with guidance files that explain how an agent should inspect available templates and match them to the requested style. Its templates are intended to be practical...
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  • 19
    Zynga Scroller

    Zynga Scroller

    Accelerated panning and zooming for HTML and Canvas

    Scroller, also known as Zynga Scroller, is a pure JavaScript logic component for accelerated scrolling and zooming. It is independent of any rendering layer, which means it can power interactions for DOM elements, Canvas interfaces, or other custom rendering systems. The library handles panning, deceleration, bouncing, paging, snapping, zooming, directional locking, and pull-to-refresh behavior. It can be controlled manually through an API or used through EasyScroller, a simplified...
    Downloads: 0 This Week
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  • 20
    workerpool

    workerpool

    Offload tasks to a pool of workers on node.js and in the browser

    workerpool is a JavaScript library that simplifies the creation and management of worker threads and process pools for parallel task execution in Node.js and browser environments. The project provides an abstraction layer that allows developers to offload CPU-intensive operations to background workers without manually handling thread communication or lifecycle management. It supports task queuing, dynamic worker scaling, timeouts, transferable objects, and proxy-based APIs for interacting...
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  • 21
    mathjs

    mathjs

    An extensive math library for JavaScript and Node.js

    mathjs is a comprehensive mathematics library for JavaScript and Node.js that provides advanced numerical, symbolic, and matrix computation capabilities through a flexible expression-based interface. The library supports a wide range of mathematical operations including algebra, statistics, complex numbers, fractions, units, matrices, and symbolic manipulation while maintaining compatibility across browsers and server environments. One of its defining features is its expression parser, which...
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  • 22
    FFmpeg prebuilt for NW.js

    FFmpeg prebuilt for NW.js

    FFmpeg prebuilt binaries for NW.js / Chromium

    ...It is particularly useful for developers creating multimedia-enabled NW.js apps. Overall, it ensures consistent and ready-to-use FFmpeg environments for application development.
    Downloads: 5 This Week
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  • 23
    Map of GitHub

    Map of GitHub

    Inspirational Mapping

    Map-of-GitHub is an inventive project that visually represents the global distribution of GitHub users and repositories on a map of the world, revealing geographic patterns and community concentrations across countries and cities. The project processes GitHub account metadata and GPS or location information (when available) to plot users’ locations and draw connections between communities, resulting in an exploratory visualization where density and network effects become instantly visible....
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  • 24
    mslearn-tailspin-spacegame-web

    mslearn-tailspin-spacegame-web

    Code used in Microsoft Learn modules to support Azure DevOps

    The Tailspin Space Game Web project is a sample application created by Microsoft as part of its learning resources. It’s a web-based game application used in Microsoft Learn modules and documentation to demonstrate concepts such as Azure App Services, continuous integration and delivery (CI/CD) pipelines, and DevOps practices with GitHub Actions and Azure Pipelines. The project is intentionally lightweight and easy to deploy so learners can quickly experiment with cloud deployment, testing,...
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  • 25
    JavaScript Algo and Data Structures

    JavaScript Algo and Data Structures

    Algorithms and data structures implemented in JavaScript

    javascript-algorithms is an open source repository by Oleksii Trekhleb that provides implementations of algorithms and data structures in JavaScript. Each algorithm includes explanations, complexity analysis, and references for further reading, making it both a coding resource and a study guide. The repository covers topics such as sorting, searching, graph algorithms, cryptography, and data structures like linked lists, stacks, and queues. It is designed to help developers understand...
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