Showing 4478 open source projects for "javascript open source"

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  • 1
    Binaryen

    Binaryen

    Compiler infrastructure and toolchain library for WebAssembly

    Binaryen is a compiler and toolchain infrastructure library for WebAssembly, written in C++. It aims to make compiling to WebAssembly easy, fast, and effective. Binaryen has a simple C API in a single header, and can also be used from JavaScript. It accepts input in WebAssembly-like form but also accepts a general control flow graph for compilers that prefer that. Binaryen's internal IR uses compact data structures and is designed for completely parallel codegen and optimization, using all...
    Downloads: 0 This Week
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  • 2
    sharp

    sharp

    High performance Node.js image processing module

    The typical use case for this high speed Node.js module is to convert large images in common formats to smaller, web-friendly JPEG, PNG, AVIF and WebP images of varying dimensions. Resizing an image is typically 4x-5x faster than using the quickest ImageMagick and GraphicsMagick settings due to its use of libvips. Colour spaces, embedded ICC profiles and alpha transparency channels are all handled correctly. Lanczos resampling ensures quality is not sacrificed for speed. As well as image...
    Downloads: 2 This Week
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  • 3
    Mako

    Mako

    An extremely fast, production-grade web bundler based on Rust

    Mako is a new web bundler for web apps, libraries, and frameworks. It's designed to be fast, reliable, and easy to use. It has been used in hundreds of projects in production by Ant Group, and other companies. If you are looking for a modern web bundler, Mako is the right choice.
    Downloads: 0 This Week
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  • 4
    Keyviz

    Keyviz

    Keyviz is a free and open-source tool to visualize your keystrokes

    Keyviz is an open-source tool written in Dart/C++ that visualizes your keystrokes and mouse actions in real-time, overlaying them on screen. It’s ideal for screencasts, presentations, livestreams, or instructional videos, showing users exactly what keys or buttons you press, and visually highlights them with customizable styles and filters.
    Downloads: 86 This Week
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  • 5
    PHPMailer

    PHPMailer

    The classic email sending library for PHP

    PHPMailer – A full-featured email creation and transfer class for PHP. Support for UTF-8 content and 8bit, base64, binary, and quoted-printable encodings. SMTP authentication with LOGIN, PLAIN, CRAM-MD5, and XOAUTH2 mechanisms over SMTPS and SMTP+STARTTLS transports. Validates email addresses automatically. Many PHP developers need to send email from their code. The only PHP function that supports this directly is mail(). However, it does not provide any assistance for making use of popular...
    Downloads: 175 This Week
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  • 6
    GitHub Markdown CSS

    GitHub Markdown CSS

    The minimal amount of CSS to replicate the GitHub Markdown

    A minimal CSS library replicating GitHub’s Markdown rendering styles. Simply apply github-markdown.css and wrap content in .markdown-body to inherit styling—auto light/dark theme detection with size constraints for responsive layout.
    Downloads: 0 This Week
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  • 7
    Dependabot

    Dependabot

    Dependabot's core logic for creating update PR's

    Dependabot-Core is the library at the heart of Dependabot security/version updates. Use it to generate automated pull requests updating dependencies for projects written in Ruby, JavaScript, Python, PHP, Dart, Elixir, Elm, Go, Rust, Java and .NET. It can also update git submodules, Docker files, and Terraform files. Check for the latest version of a dependency that's resolvable given a project's other dependencies. Generate updated manifest and lockfiles for a new dependency version....
    Downloads: 3 This Week
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  • 8
    LLM Datasets

    LLM Datasets

    Curated list of datasets and tools for post-training

    LLM Datasets curates and standardizes datasets commonly used to train and fine-tune large language models, reducing the overhead of hunting down sources and normalizing formats. The repository aims to make datasets easy to inspect and transform, with scripts for downloading, deduping, cleaning, and converting to formats like JSONL that slot into training pipelines. It highlights instruction-tuning and conversation-style corpora while also pointing to code, math, or domain-specific sets for...
    Downloads: 0 This Week
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  • 9
    Node.js Testing Best Practices

    Node.js Testing Best Practices

    Beyond the basics of Node.js testing

    This repository narrows the testing lens to Node.js backends, focusing on the challenges of servers, microservices, and cloud-native deployments. It covers API testing, contract testing, and persistence-layer strategies that avoid coupling tests to fragile implementation details. The material explains how to structure tests around process boundaries—HTTP, queues, cron jobs—while keeping fast feedback cycles through selective integration tests and reliable test doubles. It dives into topics...
    Downloads: 0 This Week
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  • 10
    Double Conversion

    Double Conversion

    Efficient binary-decimal & decimal-binary conversion routines for IEEE

    Double Conversion is a high-performance C++ library that provides precise and efficient binary-decimal and decimal-binary conversion routines for IEEE 754 double-precision floating-point numbers. Originally extracted from the V8 JavaScript engine, it was refactored into a standalone library to make its robust number conversion algorithms easily reusable in other projects. The library ensures consistent and accurate results for converting between double values and their string...
    Downloads: 0 This Week
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  • 11
    Flow Typed

    Flow Typed

    A central repository for Flow library definitions

    High-quality library definitions for Flow. flow-typed is a repository of third-party library interface definitions for use with Flow. When you start a project with Flow, you likely want to use some third-party libraries that were not written with Flow. By default, Flow will just ignore these libraries leaving them untyped. As a result, Flow can't give errors if you accidentally misuse the library (nor will it be able to auto-complete the library). To address this, Flow supports library...
    Downloads: 0 This Week
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  • 12
    react-window

    react-window

    React components for rendering large lists and tabular data

    React window works by only rendering part of a large data set (just enough to fill the viewport). This helps address some common performance bottlenecks. It reduces the amount of work (and time) required to render the initial view and to process updates. It reduces the memory footprint by avoiding over-allocation of DOM nodes. react-window is a complete rewrite of react-virtualized. If react-window provides the functionality your project needs, it is strongly recommend that you use it...
    Downloads: 0 This Week
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  • 13
    Kivy

    Kivy

    Innovative user interfaces made easy

    ...You can run the same codebase on Mac, Windows, Linux, Android and iOS. Kivy is 100% free and open source with a professionally developed and used toolkit, as well as a stable framework and well-documented API, so you can be confident in using it in a commercial product.
    Downloads: 82 This Week
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  • 14
    OpenH264

    OpenH264

    Open Source H.264 Codec

    Cisco has taken their H.264 implementation and open-sourced it under BSD license terms. Development and maintenance will be overseen by a board from the industry and the open-source community. Furthermore, we have provided a binary form suitable for inclusion in applications across a number of different operating systems and made this binary module available for download from the Internet.
    Downloads: 92 This Week
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  • 15
    OpenPDF

    OpenPDF

    open source Java library for creating and editing PDF files

    OpenPDF is a Java library for creating and editing PDF files with a LGPL and MPL open source license. OpenPDF is the LGPL/MPL open source successor of iText, and is based on a fork, of a fork, of iText 4 svn tag.
    Downloads: 50 This Week
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  • 16
    Compiled

    Compiled

    A familiar and performant compile time CSS-in-JS library for React

    A familiar and performant compile-time CSS-in-JS library for React. Using APIs and behavior you may already be familiar with, write your styles in JavaScript with the full power of CSS, leveraging the language to create expressive & dynamic experiences. Build with your bundler of choice or just Babel, resulting in very performant components that have their styles built ahead of time. Turn on extraction and all components styled in your app and sourced through NPM will have their runtime...
    Downloads: 3 This Week
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  • 17
    Rekado

    Rekado

    Payload launcher and serial number checker for Nintendo Switch

    Payload launcher is written in Kotlin for Nintendo Switch. The application doesn't require Root on your device.
    Downloads: 77 This Week
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  • 18
    Nerd Fonts

    Nerd Fonts

    Iconic font aggregator, collection, & patcher. 3,600+ icons

    Nerd Fonts patches developer targeted fonts with a high number of glyphs (icons). Specifically to add a high number of extra glyphs from popular ‘iconic fonts’ such as Font Awesome, Devicons, Octicons, and others. 50+ patched and ready-to-use programming fonts. 3600+ icons combined from popular sets. Iconic font aggregator, collection, & patcher. 3,600+ icons, 50+ patched fonts: Hack, Source Code Pro, more. Glyph collections: Font Awesome, Material Design Icons, Octicons, & more. Nerd Fonts...
    Downloads: 100 This Week
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  • 19
    mall-admin-web

    mall-admin-web

    frontend component of the “mall” e-commerce system

    mall-admin-web is the frontend component of the “mall” e-commerce system, implemented in Vue (plus Element UI) to deliver the backend management interface: product management, order management, member management, promotions, operations, content, statistics and settings. It demonstrates how a modern single-page application can be structured to integrate with the backend services described in the learning / microservice projects, including authentication (JWT or token), REST APIs,...
    Downloads: 0 This Week
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  • 20
    Schema.DTS

    Schema.DTS

    JSON-LD TypeScript types for Schema vocabulary

    The project provides a comprehensive set of TypeScript typings based on the Schema vocabulary, enabling developers to author JSON-LD structured data with strong type safety. It supplies both high-level discriminated unions and helper types to model contexts, graphs, and linked data relationships with clarity and accuracy. Usage examples demonstrate how one can import types like Person, WithContext, or Graph and compose JSON-LD objects in a way that aligns with semantic-web and...
    Downloads: 0 This Week
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  • 21
    Emoji Mart

    Emoji Mart

    One component to pick them all

    Data required for the picker to work has been completely decoupled from the library. That gives developers the flexibility to better control their app bundle size and let them choose how and when this data is loaded. Callback when the Add custom emoji button is clicked. The button will only be displayed if this callback is provided. It is displayed when search returns no results. You can use custom emojis by providing an array of categories and their emojis. Emojis also support multiple skin...
    Downloads: 0 This Week
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  • 22
    SuperTest

    SuperTest

    Super-agent driven library for testing node.js HTTP servers

    A super-agent driven library for testing node.js HTTP servers using a fluent API. The motivation with this module is to provide a high-level abstraction for testing HTTP, while still allowing you to drop down to the lower-level API provided by superagent. Install SuperTest as an npm module and save it to your package.json file as a development dependency. You may pass an http.Server, or a Function to request(), if the server is not already listening for connections then it is bound to an...
    Downloads: 0 This Week
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  • 23
    imagelightbox

    imagelightbox

    Image Lightbox, Responsive and Touch‑friendly

    Image Lightbox is responsive and touch-friendly. This is a fork of the Lightbox plugin created by Osvaldas Valutis. See most of the available options at the Demo Page. jQuery 1.12 (earlier version not tested), feel free to use jQuery v2 or v3 if you don't need to support older browsers. All major desktop browsers and versions as well as mobile browsers on Android, iOS and Windows Phone.
    Downloads: 0 This Week
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  • 24
    Dollar

    Dollar

    A functional tool-belt for Swift Language

    Dollar is a Swift library that provides useful functional programming helper methods without extending any built in objects. It is similar to Lo-Dash or Underscore.js in Javascript. Cent is a library that extends certain Swift object types using the extension feature and gives its two cents to Swift language. It is now moved into a separate repo to support Swift Package Manager.
    Downloads: 0 This Week
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  • 25
    OnlineToolsBook

    OnlineToolsBook

    Online tool cheats, write a high-quality manual for online tools

    OnlineToolsBook positions itself as a “manual/handbook” for useful online tools — collating, documenting, and explaining many web-based utilities to help users discover, understand, and effectively use them. Rather than building a single web-tool, this repository serves as a knowledge base: descriptions, guidance, and possibly examples or usage notes about a variety of online tools, organized in a way that’s meant to help “make online tools benefit humanity.” For someone who frequently...
    Downloads: 0 This Week
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