Open Source JavaScript Formats and Protocols for ChromeOS
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JavaScript Formats and Protocols for ChromeOS
Browse free open source JavaScript Formats and Protocols for ChromeOS and projects below. Use the toggles on the left to filter open source JavaScript Formats and Protocols for ChromeOS by OS, license, language, programming language, and project status.
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PDFCraft
PDFCraft is a free, privacy-focused PDF toolkit
PDFCraft is an extensible toolkit for creating, editing, and transforming PDF documents with both a graphical interface and a scripting API, making it useful for users ranging from casual editors to automated document processors. At its core, the project provides a clean, modern UI where you can rearrange pages, annotate text, insert images, fill forms, and export to multiple formats, all without needing a heavyweight commercial PDF suite. But beyond manual editing, it also offers a programmable layer so developers can write scripts to batch process documents, generate templated reports, or extract structured data from PDFs for integration in workflows. The design emphasizes quality and compatibility: output PDFs render accurately across readers, preserve metadata, and support interactive elements like hyperlinks and form fields. -
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JSON Editor
A web-based tool to view, edit, format, and validate JSON
JSON Editor is a web-based JSON editing and visualization tool designed for viewing, editing, formatting, validating, and transforming JSON documents in multiple interactive modes. The project provides several editing interfaces including tree view, code editor, form-based editing, and plain text modes, allowing users to work with structured data in the format most suitable for their workflow. It can be embedded directly into web applications as a reusable component and supports large JSON documents with schema validation and formatting capabilities. JSONEditor emphasizes usability by combining developer-focused functionality with accessible visual editing tools for non-technical users. The library supports modern browser environments and integrates with JavaScript module systems for flexible deployment. Its versatility has made it a popular solution for API debugging, configuration management, data inspection, and administrative interfaces. -
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HTML Inspector
HTML Inspector is a code quality tool
HTML Inspector is a browser-based JavaScript code quality tool for checking markup against customizable rules. It was designed to sit between strict W3C validation and having no markup standards at all. The tool can detect questionable HTML patterns, enforce team conventions, and help developers catch structural problems before they become harder to maintain. Its rules are opinionated by default but can be customized or extended to match a team’s own standards. HTML Inspector runs directly in the browser, which makes it useful for inspecting live pages during development. Although the project is archived, it remains a clear example of configurable client-side markup auditing. -
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hyper(HTML)
A Fast & Light Virtual DOM Alternative
hyperHTML is a lightweight JavaScript rendering library built as a fast alternative to virtual DOM frameworks. It updates the native DOM directly and uses tagged template literals to combine markup with dynamic values. Developers can bind a renderer to an existing element and refresh only the interpolated parts when data changes. The library works with standard DOM nodes, plain JavaScript data structures, custom elements, and object-based style values. It is available for ESM, CommonJS, bundlers, and CDN use, while retaining broad legacy browser support. The project is now in maintenance mode, making it best suited to established applications that value its compact, battle-tested approach. -
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CoreUI
Open Source UI Kit built on top of Bootstrap 5 and plain JavaScript
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Vanilla Framework
From community websites to web applications, this CSS framework
Backed by open-source code and written in Sass by the Canonical Web Team. Vanilla contains a responsive CSS grid, basic style for HTML elements and a selection of key useful patterns and utility classes that you can extend. Designed to be composable, you can include the whole framework to avail of all styles or you can use only what you need for your project. Anyone can contribute to Vanilla, improve it and extend it. All the code is available on GitHub and is licensed under LGPLv3 by Canonical. -
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Marx
The classless CSS reset (perfect for Communists)
Marx is a CSS stylesheet to be used in any project (namely small ones). If you don't need the weight of heavy frameworks or you would just like to make an edible website quickly, Marx is perfect for you. It can be used out of the minified box but it can also be customized and styled through the use of HTML classes. Built atop of Sanitize.css, meaning all browsers render consistently. Responsive and mobile-friendly. Clean, beautiful typography. Forms, tables, buttons and navigation. Zero classes, so it already works with your HTML. Drop-dead gorgeous. -
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window.fetch polyfill
A window.fetch JavaScript polyfill
window.fetch polyfill is a JavaScript polyfill that provides the standard window.fetch API and related interfaces in older web browsers. Importing the package patches the browser environment only when native support is missing or incomplete. It supports common workflows for retrieving HTML or JSON, inspecting response metadata, posting forms or JSON, and uploading files through FormData. Requests return Promises and follow the behavior defined by the Fetch specification, including its handling of HTTP error statuses. Abortable requests are supported when compatible AbortController and AbortSignal implementations are available. The package is designed for browsers rather than Node.js and has little effect in modern browsers with native fetch support. -
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Developed by the Web Technology Group at Appalachian State University, phpWebSite provides a complete web site content management system ( CMS ). All client output is XHTML 1.0 and meets the W3C's Web Accessibility Initiative requirements.
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JSONVue
Fork of JSONView for Chromium-based browsers
JSONVue is a Chromium browser extension derived from JSONView for displaying JSON responses in a more readable format. It improves the experience of opening raw JSON in the browser by formatting the data instead of showing unstructured text. The extension is useful for developers, API testers, and anyone who frequently inspects JSON returned by web services. It makes nested objects and arrays easier to scan by applying structured presentation in the browser tab. Because it targets Chromium-based browsers, it fits naturally into Chrome-style web development workflows. JSONVue is best understood as a focused browser utility for making JSON inspection faster and more comfortable. -
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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. -
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CF-Workers-SUB
Aggregates any of your nodes with multiple subscriptions
CF-Workers-SUB is a project that uses Cloudflare Workers to aggregate or convert multiple subscription sources (for proxy nodes/configs) into a personalized subscription link for the user. Essentially, it lets you input your own node(s) and then generate a unified subscription endpoint that others can use with tools like Clash, Sing-box, or V2Ray. The repository emphasizes being user-friendly for scenarios where one has many proxy/node links but wants to streamline into a single subscription feed. It also supports variable configuration (token, built-in nodes, custom add/CSV/API sources) to produce automated “preferred line” generation. The project is aimed at “subscription” style services (i.e., providing proxies as subscriptions) rather than pure application logic, and is tailored toward self-hosters. It’s designed for ease of deployment on Workers or Pages, enabling people to maintain their own subscription link infrastructure cheaply. -
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DigitalPlat FreeDomain
DigitalPlat FreeDomain: Free Domain For Everyone
FreeDomain is a DigitalPlat project that provides free domain names for individuals, developers, open-source projects, nonprofits, and small organizations. It is built around the idea that everyone should be able to create a public web identity without paying for a domain upfront. Users can register a domain and connect it to a DNS provider such as Cloudflare, FreeDNS, Hostry, or their own DNS infrastructure. The repository includes documentation for account setup, DNS configuration, and domain activation. It is intended to be approachable even for users with little prior DNS experience. FreeDomain is best suited for personal websites, small projects, testing environments, and public-interest web initiatives. -
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Screenshot as a Service
Website screenshot service powered by node.js and phantomjs
Screenshot as a Service is an archived Node.js project that provides a simple website screenshot service powered by Express and PhantomJS. It exposes an HTTP server that can receive a URL, render the page through PhantomJS, and return or save a screenshot image. The project was designed as a lightweight service for automating visual captures of websites without manually opening a browser. It includes asynchronous usage examples for taking screenshots of multiple sites at regular intervals and saving them to disk. Because it relies on PhantomJS, it reflects an older generation of headless browser tooling and should not be treated as a modern screenshot stack. It remains useful as a reference for the basic architecture of screenshot APIs and automated web capture services. -
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WorkerVless2sub
Automate batch replacement to generate subscription generators
WorkerVless2sub is a dedicated subscription generator focused on providing “preferred line” subscriptions by processing VMess, VLESS, Trojan nodes, filtering and replacing automatically via a Cloudflare Worker script. The idea is you supply node lists (or use existing APIs/CSV sources) and the worker filters them by criteria like speed or reliability and then emits a subscription link for end-users. It supports deployment on Cloudflare Pages or Workers, offers configuration via variables like HOST, UUID, PATH, ADD, ADDAPI etc., and has an Apache-2.0 license. The tool supports both IPv4 and IPv6 node sources, speed test CSV inputs, and logic to drop nodes that don’t meet the threshold (DLS variable). It has a sizeable star count and forks indicating broader adoption in self-hosted proxy subscription communities. The README also explicitly warns about hosting personal private nodes in the script if intending public use. -
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OpenBEXI is a WYSIWYG HTML builder using the magic of HTML5 and CSS3 . By resizing, dragging and dropping various HTML widgets it is easy to build a web page. All texts using the DOJO editor, pictures, charts, chart-flows, Dygraphs, timelines, lists and DOJO widgets edited on your browser look like the HTML page you are going to publish to your web site. OpenBEXI provides a powerful CSS and JavaScript editor to change on the fly the presentation and the behavior of your web pages. Tools allow you to create, manage and publish web projects and HTML pages for Internet.
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toendaCMS - Your ideas ahead is a publishing system and open-source content management framework, based on a modular structure. It has a user-friendly interface, is simple and intuitive to use. Making it easy to build and maintain a website or weblog wit
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Site Kit for WordPress
Site Kit is a one-stop solution for WordPress users
Site Kit is a first-party WordPress plugin that brings key Google services into a single dashboard so site owners can see how their content performs and fix issues without leaving wp-admin. After a guided setup and verification flow, it connects properties to Search Console, Analytics, AdSense, PageSpeed Insights, and other services, surfacing the most relevant metrics per page and per site. The plugin focuses on clarity: traffic sources, search queries, top pages, and monetization signals appear alongside actionable performance recommendations. It also handles authentication and permission scopes securely, so multiple collaborators can access insights without sharing credentials. Widgets and contextual panels put data where it’s needed—for example, on the post list or edit screen—reducing tab-switching. For developers and agencies, Site Kit simplifies client onboarding and standardizes reporting across many sites. -
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htmlarea
Small, powerful, full featured WYSIWYG editor
HTMLArea 4 is a browser based WYSIWYG editor that easily replaces the TEXTAREA in your web pages. It is written in JavaScript, and suitable for use in any modern web browser, and any page on your web site. Current version is 4.0-2016-08-29 -
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VisualMathEditor
LaTeX, AscciMath and MathML editor developed in Javascript and HTML
Visual Math Editor New Version “ It now offers more than 730 LaTeX symbols and 210 AsciiMath symbols. It now works in all modern browsers without plugin. It now works with LaTeX, AsciiMath, MathML and HTML syntaxes. It improves the ergonomics of the user interface.” VisualMathEditor is a LaTeX, AsciiMath and MathML editor developed in Javascript and HTML. It operates independently on the web or locally. It has many features and menus that help the equation-entry and allow their posting and backup. Formulas : - math physics symbols - operation symbols - logical symbols - arrows symbols - relation symbols - bracket symbols - differential symbols - functions symbols - integral symbols - matrix symbols - sqrt & frac symbols - sub & sup symbols - sum & prod symbols - greek characters -
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adx - addressbook.xml
Minimalistic address book in web browser. No server or plugin needed.
Minimalistic but full-featured addressbook in your web browser. adx is a standalone and portable web app (online and offline). FEATURES Contact Management, portable, small (~350KB), lightweight, contact tagging, geo mapping, web accounts, trigger phone/Skype calls, etc. EXPORT FUNCTIONALITY vCard (as file or QR code via offline generator) HOW IT WORKS Your address-book (XML file) is transformed in your web browser (via XSLT) to a full-featured web application (HTML). REQUIREMENTS Web browser for viewing adx; online hosting or local storage is possible (for local storage most modern browsers need to be configured to allow access to local files); NO server, plugin or anything else needed. Any text editor can be used for contact editing (addressbook.xml). -
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All-in-one program for creating 2D scrolling games. Compile your games into stand-alone .NET executables or customizable C# source code. The IDE and framework are build on OpenTK, which wraps OpenGL, so generated games can be cross-platform.
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EpiDoc: Epigraphic Documents in TEI XML
XML text markup for ancient documents
The EpiDoc Collaborative is developing specifications and tools for standards-based, digital publication and interchange of scholarly and educational editions of documentary and literary texts like inscriptions and papyri. The link below will take you to the EpiDoc home page on this site. -
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phpMyBitTorrent: BitTorrent Tracker written in PHP. Features include: hosting torrents from remote trackers, DHT, Compact Announce, alternate links (eD2K, Magnet), HTTP-Basic Authentication, Passkey Authentication, embedded HTML Editor, Mass-upload of to
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CPAINT (Cross-Platform Asynchronous INterface Toolkit) is a multi-language toolkit that helps web developers design and implement AJAX web applications with ease and flexibility.
