Showing 143 open source projects for "html css code tester"

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  • 1
    CSS Inspiration

    CSS Inspiration

    Curated collection of interesting, creative, or inspiring CSS effects

    CSS-Inspiration is a living gallery of modern CSS effects and components that highlights what’s possible with pure CSS and minimal markup. The collection ranges from micro-interactions and loaders to 3D transforms, complex backgrounds, hover states, and text effects, each presented as a small, self-contained demo. Source code is front and center, encouraging developers to study, copy, and tweak snippets for their own projects. Many examples lean on contemporary features—custom properties,...
    Downloads: 0 This Week
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  • 2
    CSS Grid Generator

    CSS Grid Generator

    Generate basic CSS Grid code to make dynamic layouts

    ...Once the layout is arranged, the tool generates the corresponding HTML and CSS you can copy into your project—thus bridging the gap between design and code. The interface supports drag-and-drop of “divs” into grid cells, and you can experiment with grid gaps, spans and layout refinements in real time. Because it removes the barrier of hand-writing complex grid-template or grid-area definitions, it’s particularly useful for designers who are less comfortable with CSS or want rapid prototyping of grid layouts.
    Downloads: 1 This Week
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  • 3
    CSS Exercises
    This repository provides a set of hands-on CSS exercises that accompany the HTML and CSS modules in The Odin Project curriculum. The tasks are designed to be completed at specific points in the course, reinforcing each concept right after it is introduced. Learners are encouraged to use documentation and external resources freely, reflecting real-world workflows rather than rote memorization. Each exercise focuses on practical styling problems, from selectors and specificity to layout...
    Downloads: 0 This Week
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  • 4
    Phoenix Code Editor

    Phoenix Code Editor

    Phoenix is a modern open-source Code Editor for the web

    Phoenix is a modern open-source and free software code editor for the web, built for the browser.
    Downloads: 3 This Week
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  • 5
    Vanilla Framework

    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.
    Downloads: 3 This Week
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  • 6
    htmx

    htmx

    Hgh power tools for HTML

    htmx gives you access to AJAX, CSS Transitions, WebSockets and Server-Sent Events directly in HTML, using attributes, so you can build modern user interfaces with the simplicity and power of hypertext. htmx is small (~14k min.gz’d), dependency-free, extendable & has reduced code base sizes by 67% when compared with react.
    Downloads: 7 This Week
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  • 7
    Answer me with HTML

    Answer me with HTML

    An agent skill that answers hard questions with a one-page HTML

    Answer me with HTML is an Agent Skill that converts complex AI answers into polished single-page visual explainers. Instead of asking the model to manually write complete HTML, CSS, and SVG, it has the model produce a concise Markdown draft. A bundled CLI then handles layout, styling, diagrams, dark mode, and page generation automatically. The output is a standalone HTML file that can be read offline and shared without a hosting service.
    Downloads: 0 This Week
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  • 8
    Tacit

    Tacit

    CSS framework for dummies, without a single CSS class

    ...Tacit's goal is to be super simple and always with the same look-and-feel. If you want something more custom, like a different theme, feel free to make it on top of Tacit. You should not use any CSS classes to make your HTML code look nice. Just make sure it is HTML5 compliant and you'll be fine.
    Downloads: 0 This Week
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  • 9
    JS-Beautify

    JS-Beautify

    Beautifier for javascript

    js-beautify is a command-line and Python-based tool that beautifies and formats JavaScript, HTML, and CSS code. It helps improve code readability by enforcing consistent indentation and style rules. Widely used in development workflows and CI pipelines, it supports customization through config files and can process both single files and entire projects.
    Downloads: 4 This Week
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  • 10
    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: 6 This Week
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  • 11
    Electron

    Electron

    Build cross-platform desktop apps with JavaScript, HTML, and CSS

    Electron is an open-source framework that uses Node.js runtime and the Chromium web browser thereby allowing you to build apps with JavaScript, HTML, and CSS. It is compatible with Mac, Windows and Linux and comes with convenient features such as automatic updates, app crash reporting, debugging and profiling and more. It takes care of the hard parts so you can focus on the core of your app. Initially developed for the Atom editor, Electron is now the framework of choice for dozens of popular desktop apps including Microsoft's Visual Studio Code.
    Downloads: 52 This Week
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  • 12
    interactive-examples

    interactive-examples

    Home of the MDN live code editor interactive examples

    Home of the MDN interactive code examples. The dynamically generated pages, their dependencies, and assets are generated to the prod branch.
    Downloads: 2 This Week
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  • 13
    UIkit

    UIkit

    Lightweight modular front-end framework for developing web interfaces

    A lightweight and modular front-end framework for developing fast and powerful web interfaces. UIkit will work on pretty much any modern browser. Using UIkit works best if you have a solid code editor, for example Sublime Text or Atom. To be even more efficient, we recommend that you install one of the autocomplete plugins for your favorite IDE or code editor. This saves a lot of time, as you won't have to look up and type all UIkit classes and markup. To use UIkit's CSS and JavaScript, include the files in your own HTML and then create the markup of any of the components. ...
    Downloads: 4 This Week
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  • 14
    TACHYONS

    TACHYONS

    Functional CSS for humans

    ...Documentation helps promote reusability and shared knowledge. CSS shouldn't impede accessibility or the default functionality of HTML. You should send the smallest possible amount of code to the user. Usable across projects. Growing open source component library. Works well with plain HTML, React, Ember, Angular, Rails and more. Infinitely nestable responsive grid system. Built with PostCSS. Optimized for maximum gzip compression.
    Downloads: 1 This Week
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  • 15
    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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  • 16
    Acode

    Acode

    A powerful text/code editor for Android

    Welcome to Acode Editor, a powerful and versatile code editing tool designed specifically for Android devices. Whether you're working on HTML, CSS, JavaScript, or other programming languages, Acode empowers you to code on-the-go with confidence. Step into the future of coding with our innovative plugin system. This all-new feature is compatible with a wide range of plugins, increasing Acode's functionality to meet all your development needs.
    Downloads: 56 This Week
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  • 17
    marko

    marko

    A declarative, HTML-based language that makes building web apps fun

    A declarative, HTML-based language that makes building web apps fun. If you know HTML, CSS, and Javascript, you know Marko. Streaming, partial hydration, an optimizing compiler, & a small runtime. Start with simple HTML templates and add powerful components as needed. Marko is powering high-traffic websites like ebay.com. Marko is HTML re-imagined as a language for building dynamic and reactive user interfaces.
    Downloads: 5 This Week
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  • 18
    Sigma's Web Development Course

    Sigma's Web Development Course

    Source Code for Sigma Web Development Course

    Sigma Web Development Course is the source-code repository for a Hindi-language web development training series. It is structured around individual video lessons so learners can follow the code demonstrated throughout the accompanying course. The material is intended for beginners as well as intermediate developers who want to strengthen their web development skills. Core subjects include HTML, CSS, JavaScript, front-end development, back-end development, and database integration. ...
    Downloads: 0 This Week
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  • 19
    Lightning Web Components

    Lightning Web Components

    A Blazing Fast, Enterprise-Grade Web Components Foundation

    Lean, lightweight runtime optimized for performance, with minimal boilerplate code. Lightning Web Components uses standard HTML, modern JavaScript (ES6+), and the best of native Web Components. Leave abstractions behind and build custom elements with HTML, JavaScript, and CSS. Lightning web components are custom elements built using HTML and modern JavaScript. Ready to learn more? Check out the Developer Guide and write code in the Playground. ...
    Downloads: 28 This Week
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  • 20
    Prettier

    Prettier

    Opinionated Code Formatter

    ...Simply press save and your code is formatted. Prettier supports several languages including JavaScript, TypeScript, JSON, CSS, HTML and more. It also integrates with most editors (Atom, Visual Studio, Vim, Espresso and more).
    Downloads: 19 This Week
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  • 21
    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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  • 22
    MDN Learning Area

    MDN Learning Area

    GitHub repo for the MDN Learning Area

    learning-area is the official GitHub repository for the MDN Web Docs Learning Area, a collection of educational resources designed to teach core web development technologies. It contains the code examples referenced throughout MDN’s tutorials and articles, covering topics such as HTML, CSS, JavaScript, and web APIs. Each directory in the repository mirrors the module structure of the MDN Learning Area, allowing learners to follow along easily as they read through corresponding lessons. The examples are written to be simple, instructive, and directly aligned with MDN’s documentation, making it an ideal hands-on companion for web development education. ...
    Downloads: 1 This Week
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  • 23
    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. ...
    Downloads: 3 This Week
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  • 24
    a11y.css

    a11y.css

    This CSS file intends to warn developers about possible risks

    This CSS file intends to warn developers about possible risks and mistakes that exist in HTML code. It can also be used to roughly evaluate a site's quality by simply including it as an external stylesheet. When activating the stylesheet, a tip should appear beside each incriminated elements, displaying what’s going on. This file is not a replacement to a complete tool such as aXe, Tanaguru or Tenon.
    Downloads: 2 This Week
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  • 25
    Complete Intro to Web Dev v3

    Complete Intro to Web Dev v3

    The Complete Intro to Web Dev v3, as taught on Frontend Masters

    Complete Intro to Web Dev v3 is the course repository for Brian Holt’s beginner web development class on Frontend Masters. It is designed for learners with little or no coding experience. The lessons introduce HTML for page structure, CSS for visual design, and JavaScript for interactive behavior. Students practice browser tools, editors, debugging, responsive layouts, and common development workflows. The material builds toward creating a complete web application rather than isolated syntax exercises. The repository also contains the Next.js-based course website, reusable lesson content, code examples, and supporting assets. ...
    Downloads: 0 This Week
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