Showing 33 open source projects for "html css code tester"

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  • 1
    AngleSharp

    AngleSharp

    The ultimate angle brackets parser library parsing HTML5, MathML, SVG

    AngleSharp follows the W3C specifications and gives you the same results as state of the art browsers. Besides the official API AngleSharp adds some useful extension methods on top. This makes working with the DOM convenient. AngleSharp integrates everything you need to explore and mutate the DOM tree. Node retrieval is straight forward by using powerful CSS query selectors. The CSS queries in AngleSharp are super fast and very simple to use. AngleSharp respects the relationship of HTML with...
    Downloads: 4 This Week
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  • 2
    LaTeX.CSS

    LaTeX.CSS

    LaTeX.css is a library that makes your website look like a LaTeX doc

    This almost class-less CSS library turns your HTML document into a website that looks like a LATEX document. Write semantic HTML, and you are good to go. The source code can be found on GitHub. LaTeX.css is a minimal, almost class-less CSS library that makes any website look like a LaTeX document. Add any optional classes to elements with special styles (author subtitle, abstract, lemmas, theorems, etc.).
    Downloads: 2 This Week
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  • 3
    tabler icons

    tabler icons

    1950 free MIT-licensed high-quality SVG icons

    ...Free and open-source icons designed to make your website or app attractive, visually consistent, and simply beautiful. Each icon is designed on a 24x24 grid and a 2px stroke. All icons are built with SVG, so you can place them as <img>, background-image and inline in HTML code. If you load an icon as an image, you can modify its size using CSS. You can paste the content of the icon file into your HTML code to display it on the page. Import the icon and render it in your component. You can adjust SVG properties through React props. Angular components are available through the angular-tabler-icons package. ...
    Downloads: 4 This Week
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  • 4
    Lexbor

    Lexbor

    Lexbor is development of an open source HTML Renderer library

    Lexbor is the development of a web browser engine available as a software library; it ships with a free license and has no extra dependencies. For us, speed is an absolute must-have. In our development process, we focus on fastest parsing techniques for HTML, CSS, and fonts, fastest data processing methods, and fastest ways to serve content to end users. Whether you are building a backend that handles millions of HTML documents or a UI-heavy user app, your software’s response rate always matters to users and developers alike. Lexbor’s code is optimized for ease of access in end-user applications and across programming languages. ...
    Downloads: 8 This Week
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  • 5
    Bootstrap Table

    Bootstrap Table

    Extended table to integration with some of the most widely used CSS

    Include Bootstrap Table source CSS and JavaScript files via npm or yarn. When you only need to include Bootstrap Table’s compiled CSS or JS, use UNPKG. Download Bootstrap Table to get the compiled CSS and JavaScript, source code, or include it with your favorite package managers like npm, bowser, and more. Install and manage Bootstrap table’s CSS, JavaScript, locales, and extensions using npm. Install and manage Bootstrap table’s CSS, JavaScript, locales, and extensions using bower. Be sure...
    Downloads: 0 This Week
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  • 6
    Front-End Performance Checklist

    Front-End Performance Checklist

    The only Front-End Performance Checklist that runs faster

    ...It frames performance as a front-end responsibility and turns broad principles into concrete, verifiable checks you can apply before shipping. The checklist is organized by areas such as HTML, CSS, JavaScript, fonts, images, and network delivery, so teams can tackle bottlenecks systematically. Each section emphasizes practical outcomes like cutting render-blocking resources, optimizing critical path CSS, and leveraging modern compression and caching. The project is designed to be used in code reviews and pre-launch audits, making it easy to institutionalize performance culture across teams. ...
    Downloads: 1 This Week
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  • 7
    Markdown to PDF

    Markdown to PDF

    Hackable CLI tool for converting Markdown files to PDF using Node.js

    A simple and hackable CLI tool for converting markdown to pdf. It uses Marked to convert markdown to HTML and Puppeteer (headless Chromium) to further convert the HTML to PDF. It also uses highlight.js for code highlighting. The whole source code of this tool is only ~250 lines of JS ~500 lines of Typescript and ~100 lines of CSS, so it is easy to clone and customize.
    Downloads: 2 This Week
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  • 8
    Metro 4

    Metro 4

    Impressive component library for expressive web development

    Create your site quickly and effectively with Metro 4. Metro 4 is a free open-source impressive components library built on html, css, javascript. Using Metro 4 is very easy, you don't even need to know javascript to make fully functional websites that interact with the user. Metro 4 is an open source project. You can access to full source code on the GitHub and get Metro 4 with free license. Metro 4 is accessible in various ways. You can get Metro 4 from NPM, Nuget, GitHub, and GitLab. ...
    Downloads: 6 This Week
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  • 9
    100 proyectos de JavaScript

    100 proyectos de JavaScript

    100 JavaScript projects with code and videos for free

    ...The projects cover a variety of small apps and UI experiments, such as swipe interactions, classic games, typing tests, and more, focusing on vanilla JavaScript with HTML and CSS to reinforce core skills. The contribution section invites the community to fork the repo, implement or improve projects, and open pull requests, turning the collection into a collaborative learning space.
    Downloads: 0 This Week
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  • 10
    MudBlazor

    MudBlazor

    Do more with Blazor, utilizing CSS and keeping Javascript to a minimum

    ...With MudBlazor you can create exceptional apps without the burden of mastering HTML, CSS and JS and focus your skillset on C#.
    Downloads: 8 This Week
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  • 11
    HyperUI

    HyperUI

    Free Tailwind CSS v4 components for your next project

    HyperUI is a large, copy-and-paste library of Tailwind CSS components aimed at speeding up interface building without adding heavy JavaScript. It groups components by common product needs—navigation, hero sections, pricing, forms, cards, tables, and full e-commerce flows—so teams can assemble pages quickly from consistent building blocks. Each snippet is written as semantic HTML with Tailwind utility classes, making it easy to customize spacing, color, and typography through a project’s Tailwind config. ...
    Downloads: 1 This Week
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  • 12
    Vexip UI

    Vexip UI

    Vue 3 UI library, highly customizability, full TypeScript, performance

    Highly customizability, full TypeScript, performance pretty good. This library is using base on vue 3.0 with using composition api, and design and code components in the traditional way by Vue possible, fully TypeScript. Almost all the default value of props for each component can be quickly modified by configuration, for easy customization. And, the writing of component codes pays great attention to lowering the threshold of source code reading, and the style of code is as close to the...
    Downloads: 1 This Week
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  • 13
    Google Style Guides

    Google Style Guides

    Style guides for Google-originated open source projects

    Google Styleguide is a comprehensive collection of coding style guides created and maintained by Google to ensure consistency, readability, and maintainability across its vast array of software projects. These guides define best practices and conventions for writing code in multiple programming languages, from C++ and Python to JavaScript, Go, and Swift. By adhering to these standards, developers can more easily collaborate, review code, and maintain high-quality software across teams and...
    Downloads: 2 This Week
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  • 14
    Layui UI

    Layui UI

    An open source Web UI component library

    layui is a set of open-source Web UI component library, which adopts its own classic modularization specifications and follows the development method of native HTML/CSS/JS. It is very easy to use and ready to use. Its style is simple and light, while its components are elegant and rich. Every detail from source code to usage method has been carefully crafted, which is very suitable for the rapid development of web interface. Layui is different from those front-end frameworks based on the bottom layer of MVVM, but it does not go against the road, but believes in returning to the basics. ...
    Downloads: 3 This Week
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  • 15
    Vanilla Web Projects

    Vanilla Web Projects

    Mini projects built with HTML5, CSS & JavaScript

    vanillawebprojects is a collection of small, hands-on web apps built with only HTML, CSS, and plain JavaScript to teach core front-end skills without frameworks. Each project targets a concrete concept—DOM manipulation, events, localStorage, fetch, form validation, audio/video APIs, and more—so learners see ideas applied in working code. The codebases are intentionally compact and readable, making them easy to clone, tweak, and extend.
    Downloads: 0 This Week
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  • 16
    DocWire SDK

    DocWire SDK

    Award-winning modern data processing SDK in C++20

    DocWire SDK, a standout C++20AI driven data processing tool, has received award from SourceForge and strong backing from Microsoft. It handles nearly 100 file types, empowering efficient text extraction, web data extraction, and document analysis. For businesses, the shift to DocWire SDK signifies a leap forward. It promises comprehensive document format support and the ability to extract valuable insights from email boxes, databases, and websites using cutting-edge AI. DocWire SDK aims to...
    Downloads: 5 This Week
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  • 17
    React Demos

    React Demos

    A collection of simple demos of React.js

    This repository is a curated collection of small, focused React examples intended to illustrate core concepts through runnable code. Each demo isolates a single idea—such as component composition, state and props, lifecycle hooks, or event handling—so learners can see cause and effect without framework noise. The code favors clarity over abstraction, making it easy to copy, tweak, and compare different approaches to the same problem. Many examples are deliberately minimal, showing just enough HTML, CSS, and JavaScript to highlight the React pattern being taught. ...
    Downloads: 0 This Week
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  • 18
    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...
    Downloads: 0 This Week
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  • 19
    Advanced CSS Course

    Advanced CSS Course

    Starter files, final projects and FAQ for my Advanced CSS course

    ...It also includes downloadable course slides, making it easier to follow the theory portions alongside the hands-on projects. The code is meant for learning rather than production reuse, but it provides clear examples of how advanced CSS concepts are applied in real interfaces. It is best suited for students who already know basic HTML and CSS and want to move into polished, professional frontend styling.
    Downloads: 0 This Week
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  • 20
    HTML CSS Course

    HTML CSS Course

    Starter files, final projects, and FAQ for my HTML + CSS course

    HTML CSS Course is the official repository for Jonas Schmedtmann’s Build Responsive Real-World Websites with HTML and CSS course. It contains starter files and final code for the sections and projects included in the course. The repository helps beginners practice semantic HTML, modern CSS, layout systems, responsive design, and real-world website construction.
    Downloads: 0 This Week
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  • 21
    Pretty-Error

    Pretty-Error

    See node.js errors with less clutter

    pretty-error is a Node.js library that renders JavaScript error messages in a cleaner, more readable, and visually styled format to make debugging easier. PrettyError turns error objects into something similar to an html document, and then uses RenderKid to render the document using simple html/css-like commands. This allows PrettyError to be themed using simple css-like declarations. There are a few methods to help you customize the contents of your error logs. You can customize which trace...
    Downloads: 0 This Week
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  • 22
    Solved by Flexbox

    Solved by Flexbox

    A showcase of problems once hard or impossible to solve with CSS

    Solved by Flexbox is a collection of layout patterns that demonstrates how CSS Flexbox elegantly resolves classic web design problems. It tackles everyday challenges—vertical centering, equal-height columns, sticky footers, fluid media, and responsive grids—showing concise, production-ready CSS instead of elaborate hacks. Each pattern is presented with plain HTML, clear commentary, and minimal styling, making the underlying technique easy to adapt and extend. The project emphasizes...
    Downloads: 0 This Week
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  • 23
    Browser diet

    Browser diet

    The definitive front-end performance guide

    Browser diet is a community-driven front-end performance guide presented as a fun, colorful website that explains how to make web pages faster and “lighter.” It collects advice from experienced front-end developers and organizes it into practical sections covering HTML, CSS, JavaScript, images, server configuration, and general best practices. The project was built as a static site powered by DocPad, with content written in Markdown and translated into multiple languages, making it...
    Downloads: 0 This Week
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  • 24
    HTML5 Demos and Examples

    HTML5 Demos and Examples

    Collection of hacks and demos showing capability of HTML5 apps

    HTML5 Demos and Examples is a classic collection of HTML5 experiments and demonstration files created to show the capabilities of modern web APIs and browser technologies during the rise of HTML5. The repository is an archive of interactive examples—ranging from canvas tricks to video, audio, drag-and-drop, WebSockets, and more—that illustrate how HTML, CSS, and JavaScript can combine to build rich, browser-centric experiences without plugins. Each demo is a self-contained piece of code you can open, explore, and learn from, and the collection was curated to help developers grasp emerging standards at a time when HTML5 was gaining traction and not yet ubiquitous. Though no longer actively maintained, the archive still contains hundreds of creative examples that can teach fundamentals and spur experimentation with web features. ...
    Downloads: 0 This Week
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  • 25
    epic-spinners

    epic-spinners

    Easy to use CSS spinners collection with Vue.js integration

    ...View demo to see vue.js components usage examples and HTML/CSS source code. To use pure HTML/CSS version, visit our gallery and click any spinner to see its HTML/CSS source code. You can easily configure spinners' size, color, and animation speed.
    Downloads: 0 This Week
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