Showing 147 open source projects for "html css code tester"

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  • Stop Storing Third-Party Tokens in Your Database Icon
    Stop Storing Third-Party Tokens in Your Database

    Auth0 Token Vault handles secure token storage, exchange, and refresh for external providers so you don't have to build it yourself.

    Rolling your own OAuth token storage can be a security liability. Token Vault securely stores access and refresh tokens from federated providers and handles exchange and renewal automatically. Connected accounts, refresh exchange, and privileged worker flows included.
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  • AI-powered service management for IT and enterprise teams Icon
    AI-powered service management for IT and enterprise teams

    Enterprise-grade ITSM, for every business

    Give your IT, operations, and business teams the ability to deliver exceptional services—without the complexity. Maximize operational efficiency with refreshingly simple, AI-powered Freshservice.
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  • 1
    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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  • 2
    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: 8 This Week
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  • 3
    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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  • 4
    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: 6 This Week
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  • Build Agents and Models on One Platform Icon
    Build Agents and Models on One Platform

    Everything you need to build production-ready agents and models. Access 200+ Google and third-party AI models and tools.

    Gemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
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  • 5
    ASP.NET Core

    ASP.NET Core

    A framework for building web apps and services with .NET and C#

    ASP.NET Core is an open-source and cross-platform framework for building modern cloud based internet connected applications, such as web apps, IoT apps and mobile backends.
    Downloads: 17 This Week
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  • 6
    stylelint

    stylelint

    A linter that helps you avoid errors and enforce conventions

    stylelint understands the latest CSS syntax including custom properties and level 4 selectors. Extracts embedded styles from HTML, markdown and CSS-in-JS object & template literals. Parses CSS-like syntaxes like SCSS, Sass, Less and SugarSS. Has over 170 built-in rules to catch errors, apply limits and enforce stylistic conventions. Supports plugins so you can create your own rules or make use of plugins written by the community. Automatically fixes the majority of stylistic violations. Itis...
    Downloads: 5 This Week
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  • 7
    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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  • 8
    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: 9 This Week
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  • 9
    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: 2 This Week
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  • $300 Free Credits to Build on Google Cloud Icon
    $300 Free Credits to Build on Google Cloud

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    Start your next project with $300 in free Google Cloud credit. Spin up VMs, run containers, query petabytes in BigQuery, or build agents with Gemini Enterprise Agent Platform. Once your credits are used, keep building with 20+ always-free tier products including Compute Engine, Cloud Storage, GKE, and Cloud Run functions. No commitment required—just sign up and start building.
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  • 10
    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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  • 11
    Docco

    Docco

    Literate Programming can be Quick and Dirty

    Docco is a documentation generator by Jeremy Ashkenas that embraces the literate-programming style: it takes your source code and produces annotated HTML documentation that shows your comments side-by-side with your code. The idea is to read code like a book — commentary on one side, code on the other — which helps reviewers and learners understand intent and implementation simultaneously. It supports many languages (via configuration) and is intentionally quick and dirty, prioritizing...
    Downloads: 0 This Week
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  • 12
    Bootstrap 5 UI KIT

    Bootstrap 5 UI KIT

    Bootstrap 5 & Material Design 2.0 UI KIT

    Trusted by 2 000 000+ developers & designers. Used by companies & institutions. Super simple, 1 minute installation. Detailed docs & practical examples. Lots of tutorials. Plain JavaScript (but works also with jQuery). Huge and active community. MIT license, free for personal & commercial use. Simplicity and ease of use are key features of MDB 5 UI Kit. You need only one minute to install and run it. A slideshow component for cycling through elements, images or slides of text, like a...
    Downloads: 4 This Week
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  • 13
    GrapesJS

    GrapesJS

    Free and Open source Web Builder Framework

    GrapesJS is an open-source, multi-purpose, Web Builder Framework that combines different tools and features with the goal to help you (or users of your application) to build HTML templates without any knowledge of coding. It's a perfect solution to replace the common WYSIWYG editors, which are good for content editing but inappropriate for creating HTML structures. You can see it in action with the official demos, but using its API you're able to build your own editors. If you're here just...
    Downloads: 13 This Week
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  • 14
    ToolJet

    ToolJet

    Extensible low-code framework for building business applications

    ...Build complicated frontends without any experience in React, CSS or event HTML. Drag and drop 35+ in-built UI components to build even complicated frontends. Adding new components, resizing them, adjusting position, changing colors etc can be done using the visual app editor. Customize the component with in-built properties and styles without using a single line of code. Viewer for verifying current properties of components, queries and global states of applications. ...
    Downloads: 10 This Week
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  • 15
    Neiki's Code Editor

    Neiki's Code Editor

    Lightweight embeddable code editor Web Component with syntax highlighting, themes, line numbers, search, minimap and fullscreen mode.

    ...Designed for flexibility and performance, it uses Shadow DOM for style isolation and supports multiple languages including JavaScript, HTML, CSS, JSON, and Markdown. It is fully customizable through attributes, CSS variables, and a simple JavaScript API, making it suitable for documentation, demos, and embedded development tools.
    Downloads: 4 This Week
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  • 16
    Wasp

    Wasp

    A programming language that understands what a web app is

    ...Wasp is in alpha and is therefore likely to change a lot, have bugs and miss important features. Due to its expressiveness, you can create and deploy a production-ready web app from scratch with very few lines of concise, consistent, declarative code. When you need more control than Wasp offers, you can write code in existing technologies such as js/html/css/... and combine it with Wasp code!
    Downloads: 10 This Week
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  • 17
    Orchid

    Orchid

    Rapid application development of back-office applications

    Orchid is a free Laravel package that abstracts standard business logic and allows code-driven rapid application development of back-office applications, admin/user panels, and dashboards. Focus on PHP development and don't lose time with HTML, CSS, or JavaScript. Build application logic, not admin panels. Try our quick start guide and kick-start your application's development. Prevent reinventing the wheel or forms.
    Downloads: 5 This Week
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  • 18
    Streamlit

    Streamlit

    The fastest way to build data apps in Python

    A faster way to build and share data apps. Streamlit turns data scripts into shareable web apps in minutes. All in pure Python. No front‑end experience is required. Build an app in a few lines of code with our magically simple API. Then see it automatically update as you iteratively save the source file. Adding a widget is the same as declaring a variable. No need to write a backend, define routes, handle HTTP requests, connect a frontend, write HTML, CSS, JavaScript, etc. Effortlessly share, manage and deploy your apps, directly from Streamlit. ...
    Downloads: 48 This Week
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  • 19
    Parcel

    Parcel

    The zero configuration build tool for the web

    ...No more fiddling with configuration, or spending hours to keep up with best practices – it just works! Parcel supports many languages and file types out of the box, from web technologies like HTML, CSS, and JavaScript, to assets like images, fonts, videos, and more. And when you use a file type that isn't included by default, Parcel will automatically install all of the necessary plugins and dev dependencies for you! Parcel includes a development server out of the box. Just run parcel index.html to get started. When you make a change, Parcel automatically updates your code in the browser, no page reload necessary!
    Downloads: 8 This Week
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  • 20
    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: 5 This Week
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  • 21
    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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  • 22
    Nordcraft

    Nordcraft

    Packages that are used internally by the Nordcraft engine

    Nordcraft is an open source Web Development Engine that combines visual design tools, a reactive front-end framework, server-side rendering, and full programming capabilities in a unified platform aimed at streamlining modern web app creation. It offers a visual editor that lets designers and developers collaborate closely, making it possible to build, preview, and modify interfaces without constantly switching between code and browser views. The engine supports versioning, reactive signals,...
    Downloads: 3 This Week
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  • 23
    Surface

    Surface

    A server-side rendering component library for Phoenix

    Surface is a component-based UI library for Phoenix LiveView that brings a declarative, template-driven approach to building interactive interfaces. Inspired by frameworks like React, it introduces components with typed properties, slots, and macros to simplify complex UIs. Developers can create reusable, encapsulated components that integrate seamlessly with LiveView’s server-rendered real-time model. Surface emphasizes readability, making templates feel closer to HTML while retaining...
    Downloads: 0 This Week
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  • 24
    Polyglot Formatter

    Polyglot Formatter

    Multi-language code formatter with automatic language detection

    Polyglot Formatter is a lightweight browser-based code beautifier that automatically detects and formats HTML, CSS, JavaScript, PHP, and JSON. Designed for developers, it provides instant code cleanup and readability improvements without requiring a server, build process, or account. Everything runs locally in the browser for maximum privacy and convenience. The formatter supports mixed-language files, nested code blocks, configurable indentation, line wrapping, syntax highlighting, and post-format validation. ...
    Downloads: 3 This Week
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  • 25
    Code Crusader

    Code Crusader

    Integrated Development Environment (IDE)

    Code Crusader is a graphical Integrated Development Environment (IDE) designed to smoothly integrate the tasks of working with source files, compiling, and debugging, in short everything involved in developing code. FAQ: https://github.com/jafl/jx_application_framework/tree/master/programs/code_crusader#readme ChangeLog: http://codecrusader.sourceforge.net/ChangeLog.html
    Downloads: 2 This Week
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