Open Source JavaScript Formats and Protocols

Browse free open source JavaScript Formats and Protocols and projects below. Use the toggles on the left to filter open source JavaScript Formats and Protocols by OS, license, language, programming language, and project status.

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    Build Securely on AWS with Proven Frameworks

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  • 1
    PDF.js

    PDF.js

    A PDF Reader in JavaScript

    PDF.js is a web standards-based platform for parsing and rendering Portable Document Formats (PDFs). Open source and built with HTML5, this PDF viewer is supported by a great community and Mozilla Labs. PDF.js can be used on both modern and older browsers, and is built into version 19+ of Firefox.
    Downloads: 109 This Week
    Last Update:
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  • 2
    jsPDF

    jsPDF

    HTML5 client solution for generating PDFs

    The leading HTML5 client solution for generating PDFs. Perfect for event tickets, reports, certificates, you name it! PDFs are ubiquitous across the web, with virtually every enterprise relying on them to share documents. We created jsPDF to solve a major problem with how pdf files were being generated. We decided to make it open-source to allow a community of developers to expand on it.
    Downloads: 42 This Week
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    See Project
  • 3
    tabler

    tabler

    Tabler is free and open-source HTML Dashboard UI Kit

    Tabler is fully responsive and compatible with all modern browsers. Thanks to its modern, user-friendly design you can create a fully functional interface that users will love! Choose the layouts and components you need and customize them to make your design consistent and eye-catching. Every component has been created with attention to detail to make your interface beautiful! We've created this admin panel for everyone who wants to create templates based on our pre-made components. Our mission is to deliver a user-friendly, clear and easy administration panel that can be used by both simple websites and sophisticated systems. The only requirement is basic HTML and CSS (and some Liquid) knowledge, as a reward, you'll be able to manage and visualise different types of data in the easiest possible way! With the support for mobile, tablet and desktop displays, it doesn’t matter what device you’re using. Tabler is responsive in all major browsers.
    Downloads: 38 This Week
    Last Update:
    See Project
  • 4
    phpipam

    phpipam

    phpipam open-source IP address management

    phpipam is an open-source web IP address management application (IPAM). Its goal is to provide light, modern and useful IP address management. It is php-based application with MySQL database backend, using jQuery libraries, ajax and some HTML5/CSS3 features.
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    Downloads: 162 This Week
    Last Update:
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  • AI-powered service management for IT and enterprise teams Icon
    AI-powered service management for IT and enterprise teams

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  • 5
    Free editor for PDF documents. Complete editing of PDF documents is possible with PDFedit. You can change raw pdf objects (for advanced users) or use many gui functions. Functionality can be easily extended using a scripting language (ECMAScript).
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    Downloads: 267 This Week
    Last Update:
    See Project
  • 6
    Twemoji

    Twemoji

    Simple library that provides standard Unicode emoji for all platforms

    Twitter’s open source emoji has you covered for all your project's emoji needs. With support for the latest Unicode emoji specification, featuring 3,245 emojis, and all for free. As an open source project, attribution is critical from a legal, practical and motivational perspective in our opinion. The graphics are licensed under the CC-BY 4.0 which has a pretty good guide on best practices for attribution. Although there are two kinds of parsing supported by this utility, we recommend you use DOM parsing, explained below. Each type of parsing accepts a callback to generate an image source or an options object with parsing info. The second kind of parsing is string parsing. This is unrecommended because this method does not sanitize the string or otherwise prevent malicious code from being executed; such sanitization is out of scope.
    Downloads: 30 This Week
    Last Update:
    See Project
  • 7
    asar

    asar

    Simple extensive tar-like archive format with indexing

    Asar is a simple extensive archive format, it works like tar that concatenates all files together without compression while having random access support. You can pass in a transform option, which is a function, that either returns nothing or a stream. Transform. The latter will be used on files that will be in the .asar file to transform them. There is also an unofficial grunt plugin to generate asar archives at bwin/grunt-asar. Asar uses Pickle to safely serialize binary value to file, there is also a node.js binding of Pickle class. The header_size and header are serialized with Pickle class, and header_size's Pickle object is 8 bytes. offset and size record the information to read the file from the archive, the offset starts from 0 so you have to manually add the size of header_size and header to the offset to get the real offset of the file.
    Downloads: 21 This Week
    Last Update:
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  • 8
    CKEditor 5

    CKEditor 5

    Powerful rich text editor framework with a modular architecture

    CKEditor 5 is a powerful rich text editor framework with a modular architecture, modern integrations, and features like collaborative editing. CKEditor 5 provides every type of WYSIWYG editing solution imaginable. From editors similar to Google Docs and Medium, to Slack or Twitter like applications, all is possible within a single editing framework. Builds are ready-to-use solutions to common editing needs. Every build can be customized to include a completely custom set of features. Features are flexible. You can write a custom feature once, and reuse it everywhere! CKEditor 5 is an ultra-modern JavaScript rich text editor with MVC architecture, custom data model and virtual DOM. It is written from scratch in ES6 and has excellent webpack support. Native integrations with Angular, React and Vue.js are available for your convenience. Building a mobile or cross-platform desktop application with JavaScript? CKEditor 5 is compatible with Electron and mobile devices (Android, iOS).
    Downloads: 20 This Week
    Last Update:
    See Project
  • 9
    Apache Guacamole

    Apache Guacamole

    HTML5 Clientless Remote Desktop

    Apache Guacamole is a clientless remote desktop gateway. It supports standard protocols like VNC, RDP, and SSH. We call it clientless because no plugins or client software are required. Thanks to HTML5, once Guacamole is installed on a server, all you need to access your desktops is a web browser.
    Downloads: 55 This Week
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    MongoDB Atlas runs apps anywhere

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  • 10
    JSON Server

    JSON Server

    Get a full fake REST API with zero coding

    Get a full fake REST API with zero coding in less than 30 seconds (seriously). Created with <3 for front-end developers who need a quick back-end for prototyping and mocking. If you need to add authentication, validation, or any behavior, you can use the project as a module in combination with other Express middleware. You can deploy JSON Server. For example, JSONPlaceholder is an online fake API powered by JSON Server and running on Heroku. If you make POST, PUT, PATCH or DELETE requests, changes will be automatically and safely saved to db.json using lowdb. You can use JSON Server to serve your HTML, JS and CSS, simply create a ./public directory or use --static to set a different static files directory. There are many ways to set up SSL in development. One simple way is to use hotel.
    Downloads: 11 This Week
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  • 11
    WebViewer UI

    WebViewer UI

    WebViewer UI built in React

    WebViewer UI sits on top of WebViewer, a powerful JavaScript-based PDF Library that's part of the PDFTron PDF SDK. Built in React, WebViewer UI provides a slick out-of-the-box responsive UI that interacts with the core library to view, annotate and manipulate PDFs that can be embedded into any web project. This repo is specifically designed for any users interested in advanced customizations. With the source code access, it gives developers full control to customize & style the UI, build custom controls & logic, integrate into workflows, or build a UI from scratch. Any approved pull requests made to this repository are merged into WebViewer's internal builds, and can be accessed through the nightly builds. Any approved pull requests to the master branch will go to WebViewer's nightly experimental builds and pull requests to version number branches will go to that version's nightly stable.
    Downloads: 9 This Week
    Last Update:
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  • 12
    jsdom

    jsdom

    JavaScript implementation of various web standards, for use with Node

    jsdom is a pure-JavaScript implementation of many web standards, notably the WHATWG DOM and HTML Standards, for use with Node.js. In general, the goal of the project is to emulate enough of a subset of a web browser to be useful for testing and scraping real-world web applications. The latest versions of jsdom require Node.js v10 or newer. To use jsdom, you will primarily use the JSDOM constructor, which is a named export of the jsdom main module. Pass the constructor a string. The resulting object is an instance of the JSDOM class, which contains a number of useful properties and methods besides window. In general, it can be used to act on the jsdom from the "outside," doing things that are not possible with the normal DOM APIs. For simple cases, where you don't need any of this functionality, we recommend a coding pattern.
    Downloads: 9 This Week
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    See Project
  • 13
    ZK - Simply Ajax and Mobile
    ZK is an open-source Java framework for building modern web and mobile applications. It enables developers to create rich, interactive UIs using only Java — no JavaScript required. With 200+ Ajax-powered components, event-driven architecture, and support for popular technologies like Spring, Java EE, and JSP/JSF, ZK makes it simple to deliver powerful and user-friendly web applications.
    Downloads: 39 This Week
    Last Update:
    See Project
  • 14
    CoreUI

    CoreUI

    Open Source UI Kit built on top of Bootstrap 5 and plain JavaScript

    CoreUI Admin Panel is not another blend of 3rd parties free components and libraries. It's the only Open Source Bootstrap Admin Dashboard Template built on the enterprise-grade hand-crafted UI Components Library created and backed by professionals. CoreUI and CoreUI PRO are delivered with fully-featured, and ready-to-use admin panel templates for your application. Save thousands of development hours by using ready-made, reusable, and commonly used widgets and UI components. Moreover, CoreUI Bootstrap Admin Template is delivered with a ready-to-use environment, so you don't have to waste time configuring the project. All build scripts and tools are ready to use out of the box. With CoreUI Template you can start a new project in a minute!
    Downloads: 8 This Week
    Last Update:
    See Project
  • 15
    SingleFile

    SingleFile

    Web Extension for Firefox/Chrome/MS Edge and CLI tool

    Web Extension for Firefox/Chrome/MS Edge and CLI tool to save a faithful copy of an entire web page in a single HTML file. SingleFile is a Web Extension (and a CLI tool) compatible with Chrome, Firefox (Desktop and Mobile), Microsoft Edge, Vivaldi, Brave, Waterfox, Yandex Browser, and Opera. It helps you to save a complete web page into a single HTML file. Wait until the page is fully loaded. Click on the SingleFile button in the extension toolbar to save the page. You can click again on the button to cancel the action when processing a page. Open the context menu by right-clicking the SingleFile button in the extension toolbar or on the webpage. It allows you to save the current tab, the selected content, the selected frame. With auto-save active, pages are automatically saved every time after being loaded (or before being unloaded if not). Right-click on the SingleFile button and select "Manage extension" (Firefox) / "Options" (Chrome) to open the options page.
    Downloads: 8 This Week
    Last Update:
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  • 16
    pdfmake

    pdfmake

    Client/server side PDF printing in pure JavaScript

    Print PDFs directly in the browser or delegate it to your NodeJS backend. Use the same document definition in both cases. Forget about manual x, y calculations. Declare document structure and let pdfmake do the rest. Use paragraphs, columns, lists, tables, canvas, etc. Declare your own styles, use custom fonts, build a DSL and extend the framework. Provides a set of options to disable font layout cache and to control when pages are flushed to the output file. Pdfmake is runnable in browser (client-side) and in Node.js (server-side). PDF name can be defined only by using metadata title property. Add-ons used in browsers can affect the functionality of pdfmake (especially for open() and print()). If pdfmake is not working try disable add-ons in browser. The supported browsers are Internet Explorer 10+, Edge 12+, Firefox, Chrome, Opera and Safari.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 17
    AdminKit

    AdminKit

    AdminKit is a free & open-source HTML dashboard & admin template

    A professional Admin & Dashboard template based on Bootstrap 5 that comes with hundreds of UI components, forms, tables, charts, pages and icons. AdminKit does not require jQuery and neither does one of the 3rd party libraries AdminKit is using. Customizable: You don't need to be an expert to customize AdminKit. Our code is very readable and well documented. With mobile, tablet & desktop support it doesn't matter what device you're using. AdminKit is responsive in all browsers. Our themes are working perfectly with Chrome, Firefox, Safari, Opera, and Edge. We're working hard to support them. We strictly follow Bootstrap's guidelines to make your integration as easy as possible. All code is handwritten. AdminKit, and all third-party libraries used in the admin template, do not require jQuery as a dependency. From time to time you'll receive an update containing new components, improvements, and bugfixes.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 18
    DOMPurify

    DOMPurify

    XSS sanitizer for HTML, MathML and SVG

    A DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, SVG and MathML. It's also very simple to use and get started with. DOMPurify was started in February 2014 and, meanwhile, has reached version 2.3.0. DOMPurify is written in JavaScript and works in all modern browsers (Safari (10+), Opera (15+), Internet Explorer (10+), Edge, Firefox and Chrome - as well as almost anything else using Blink or WebKit). It doesn't break on MSIE6 or other legacy browsers. It either uses a fall-back or simply does nothing. Our automated tests cover 17 different browsers right now, more to come. We also cover Node.js v14.15.1, v15.4.0, running DOMPurify on jsdom. Older Node.js versions are known to work as well. DOMPurify is written by security people who have vast background in web attacks and XSS.
    Downloads: 5 This Week
    Last Update:
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  • 19
    Discord Bot Client

    Discord Bot Client

    A patched version of discord, with bot login support

    Discord Bot Client allows you to use your bot, just like any other user account, except Friends and Groups. View Guilds (Lazy load them) Manage Guilds (Name, Image, Audit log, Emoji, Webhooks, Invites, Bans, Widget, Moderation, Roles) Manage Channels (Add, Delete, Name, Permissions, Invites, Webhooks, Slowmode, NSFW, Topic) Messages (Send, View History, Embeds, View Reactions, Add/Remove Reactions, Delete, Edit, Pin) Create a Guild (if the bot has fewer than 10 Servers) See Guild members in the side bar (you can see them in the server dropdown menu under members) Use Emojis from other servers (Nitro).
    Downloads: 5 This Week
    Last Update:
    See Project
  • 20
    Lightbox2

    Lightbox2

    The original Lightbox script (v2)

    Lightbox is small javascript library used to overlay images on top of the current page. It's a snap to setup and works on all modern browsers. Lightbox2 has been tested successfully in the following browsers, Internet Explorer, Chrome, Safari, Firefox, iOS Safari, iOS Chrome, Android Browser, and Android Chrome. The lightbox-plus-jquery.js file includes jQuery v2.x and supports IE 9+. If you want to support IE 6, 7, and 8, use your own copy of jQuery v1.x with lightbox.js. Lightbox is free to use in both commercial and non-commercial work. Make sure jQuery, which is required by Lightbox, is also loaded.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 21
    Lighthouse

    Lighthouse

    Automated auditing, performance metrics, & best practices for the web

    Lighthouse is an open-source, automated tool that analyzes and audits web apps and web pages in order to improve their quality. Lighthouse collects modern performance metrics and insights on developer best practices; auditing for performance, accessibility, SEO and more. After auditing it produces a report either in JSON or HTML. Included in the report is a reference doc that explains the importance of the audit and how to fix the problem areas, which you can use to improve the web app or web page. Lighthouse can be integrated directly into the Chrome DevTools with its own panel. To run it, you would simply have to select the Lighthouse panel and click on "Generate report". It can also be run from the command line, or as a Node module.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 22
    layui

    layui

    Classic modular front-end UI framework

    Created by professional front-end, for full-level front-end and back-end developers, a low-threshold, out-of-the-box front-end UI solution. Layui (homonym: UI-like) is a front-end UI framework written with its own module specifications, following the writing and organization of native HTML/CSS/JS, with a very low threshold and ready to use. Its exterior is minimalist, but it does not lose its fullness. The volume is light and the components are abundant. Every detail from the core code to the API has been carefully crafted, which is very suitable for the rapid development of the interface. The first version of layui was released in the golden autumn of 2016. It is different from those UI frameworks based on the underlying MVVM.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 23
    IIPImage

    IIPImage

    IIPImage is an advanced high-performance image server and client

    IIPImage is a high performance image server and client for viewing, navigating and zooming within high resolution images on the internet. Images in TIFF or JPEG2000 format are efficiently streamed by the server to a choice of clients that can be embedded within a web page.
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    Downloads: 23 This Week
    Last Update:
    See Project
  • 24
    Sizzle

    Sizzle

    A sizzlin' hot selector engine

    A pure-JavaScript CSS selector engine designed to be easily dropped in to a host library. Browser support may differ between standalone Sizzle and libraries that include Sizzle. Please report issues on Sizzle's issue tracker, rather than the trackers for disparate libraries. In order to build Sizzle, you should have Node.js/npm latest and git 1.7 or later (earlier versions might work OK, but are not tested). For Windows you have to download and install git and Node.js. Mac OS users should install Homebrew. Once Homebrew is installed, run brew install git to install git, and brew install node to install Node.js. Linux/BSD users should use their appropriate package managers to install git and Node.js, or build from source if you swing that way. Workarounds for Internet Explorer 6 are still in the code but the browser is no longer actively tested. Sizzle supports virtually all CSS 3 Selectors, including escaped selectors (.foo\+bar), Unicode selectors, and more.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 25
    Turndown

    Turndown

    An HTML to Markdown converter written in JavaScript

    Convert HTML into Markdown with JavaScript. to-markdown has been renamed to Turndown. See the migration guide for details. For usage with RequireJS, UMD versions are located in lib/turndown.umd.js (for Node.js) and lib/turndown.browser.umd.js for browser usage. These files are generated when the npm package is published. To generate them manually, clone this repo and run npm run build. Turndown also accepts DOM nodes as input (either element nodes, document nodes, or document fragment nodes). Options can be passed in to the constructor on instantiation. The key parameter is a unique name for the rule for easy reference. By default, Turndown does not keep any elements. The filter parameter works like a rule filter. To keep elements that are normally handled by rules, add a rule with the desired behaviour.
    Downloads: 4 This Week
    Last Update:
    See Project
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