19 projects for "html css code tester" with 2 filters applied:

  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

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    AppSignal links every error to the trace, the trace to the log, the log to the deploy that shipped it.
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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
    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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  • 3
    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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  • 4
    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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  • Atera - an All-in-one platform for IT management Icon
    Atera - an All-in-one platform for IT management

    Ideal for IT departments and MSPs (managed service providers)

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  • 5
    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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  • 6
    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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  • 7
    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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  • 8
    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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  • 9
    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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    Ship Agents Faster

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    Gemini Enterprise Agent Platform lets you rapidly build, scale, govern and optimize production-ready agents grounded in your organization's data. The platform enables developers to build custom or pre-built agents for virtually any use case. New customers get $300 in free credits.
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  • 10
    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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  • 11
    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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  • 12
    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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  • 13
    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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  • 14
    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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  • 15
    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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  • 16
    viewport.jquery

    viewport.jquery

    Simple but handy jQuery plugin adding methods and CSS selectors

    viewport is a simple but handy jQuery plugin that adds methods and CSS selectors to check if the element is in a certain viewport. Furthermore - you will be able to check the position relation of two separate elements even if the are not kin. The plugin uses getBoundingClientRect() to determine element positions so be sure it meets your browser support requirements. ] version 1. x.x uses different detection principles, which will work in almost any browser but work 10-30 times slower.
    Downloads: 1 This Week
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  • 17
    CSSPIN

    CSSPIN

    CSS Spinners and Loaders, Modular, Customizable and HTML Elements

    CSS Spinners and Loaders - Modular, Customizable, and Single HTML Element Code for Pure CSS Loader and Spinner. CSSPIN Library has a different set of interactive Pure CSS Loaders and Spinners which are built on the top of LESS Preprocessor. Individual Pure CSS Loader or Spinner can be easily customized and can be embedded with a Single HTML Element in your next Dev Project.
    Downloads: 0 This Week
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  • 18
    jQuery-Tabledit

    jQuery-Tabledit

    Inline editor for HTML tables compatible with Bootstrap

    ...It uses some Bootstrap components, glyphicons, and CSS classes. Possibility of changing the CSS classes and contents of buttons and other things. On this site you can see some examples with the corresponding source code and its documentation.
    Downloads: 0 This Week
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  • 19
    Normalize.css

    Normalize.css

    A modern alternative to CSS resets

    normalize.css is a small CSS file that provides a consistent baseline of default styles across browsers without erasing useful browser opinions. Rather than a “hard reset” that zeroes everything, it preserves sensible defaults for elements while fixing inconsistencies and edge cases that vary between engines. The project documents why each rule exists, targeting real-world quirks such as form control alignment, typographic defaults, and HTML5 element rendering. It is deliberately minimal and...
    Downloads: 39 This Week
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