MJML helps you quickly create responsive emails with easy-to-read markup, so your messages look great on any device and in most email clients.
Build responsive emails with simple markup
MJML is a framework designed to make building responsive emails much easier. Instead of wrestling with complicated HTML, you can use MJML’s clean, semantic markup to create emails that automatically look good on any device—even in tricky clients like Outlook.
You’ll find helpful resources like templates, live demos, and detailed documentation to get you started whether you’re a beginner or experienced developer. MJML saves you time by letting you write less code and focus on your message, not email client quirks.
If you want a smoother workflow for email design and need your campaigns to look sharp everywhere, MJML offers a friendly community and all the tools you need to streamline your email development process.
Discover websites similar to Mjml.io based on shared categories, topics, and features.
Babel is a JavaScript compiler that helps you use the latest JavaScript features by converting code for compatibility with older browsers and environments.
Emmet is a toolkit plugin for web developers that speeds up HTML and CSS coding in popular text editors, making web development faster and easier.
Explore interactive front-end web development demos, code generators, and helpful tools for developers, all open source and easy to try online.
Automatically add vendor prefixes to your CSS online for better browser compatibility. Paste your code and get prefixed CSS instantly.
esbuild is a super-fast JavaScript and CSS bundler for web projects, helping developers build and bundle code efficiently for modern web development.
Yeoman helps you kickstart modern web apps with hundreds of generators for popular frameworks like Angular, React, and more. Build projects faster and easier.
Explore a collection of free, MIT-licensed development projects and tools created by Ken Wheeler for developers to use, learn from, or contribute to.
SweetAlert2 offers customizable, accessible popup boxes for JavaScript, making it easy to create beautiful alerts and dialogs for your web projects.
Explore open-source React UI components and tools to speed up your web development, complete with live demos and clear documentation.
Explore a curated collection of resources, examples, and tools to help you create and manage front-end style guides and pattern libraries.
Explore open source web design tools, stylesheets, and templates to speed up front-end development and prototyping for your projects.
Quickly create CSS shadows and gradients for neumorphic designs. Generate and preview code to style your UI with modern, soft-looking effects.
Fastly Polyfill delivers only the browser polyfills your site needs, helping web pages run smoothly and efficiently for all visitors.
Select2 offers a customizable dropdown UI library for web forms, making it easy to enhance select boxes with search, tagging, and more features.
Brackets is a free, open source code editor built for web designers and front-end developers, offering live preview, visual tools, and extension support.
webpack is a module bundler for JavaScript that helps you organize, bundle, and load code efficiently for web development projects.
Hammer.js lets you easily add touch gestures like swipe, pinch, and tap to your website or web app for a smooth mobile-friendly experience.
Karma is an open-source tool that lets you run JavaScript tests automatically in real browsers, helping developers check code quality quickly and easily.
CodeSandbox lets you code, collaborate, and prototype projects instantly in the cloud—all from your browser, on any device.
Ace is a fast, web-based code editor you can embed in your own site or app, offering syntax highlighting and rich features for developers.
Create complex queries and filters easily with this jQuery plugin, offering a user-friendly interface for building custom search or filter rules.
Stylus is a dynamic CSS preprocessor for Node.js that helps you write expressive, robust stylesheets with advanced features and flexible syntax.
Shiny lets you easily create interactive web apps using R or Python, with tools and guides to help you build, customize, and share your projects online.
Turn your Figma and design files into working code with AI. Anima helps designers and developers quickly build, refine, and launch web projects.
WebSharper is a functional, reactive web framework for .NET that helps you build modern web apps in F# or C# with powerful UI and type-safe templates.
PostCSS lets you transform and enhance your CSS using JavaScript plugins for auto-prefixing, next-gen syntax, linting, and custom workflows.
Quickly minify your JavaScript and CSS code online or use the tool in your project to reduce file size and improve website performance.
Angular CLI lets you quickly create, develop, test, and deploy Angular web apps from the command line, making modern app development easier and faster.
PaintCode lets you draw vector graphics and instantly turn them into Objective-C or Swift code, making it easy to bridge design and development.
Partytown is a JavaScript library that moves third-party scripts to web workers, helping your website run faster by freeing up the main thread.
react-spring helps you add smooth, natural animations to your web apps, making user interfaces more lively and interactive with easy-to-use tools.
Explore and compare easing functions to make your animations smoother and more realistic. Easily pick the right curve for your web or UI projects.
instant.page helps you speed up your website by making pages load instantly, boosting user experience and conversion rates with an easy-to-use tool.
Explore creative CSS designs by switching between stylesheets and see how pure CSS can transform the same HTML content. Great for design inspiration.
Masonry is a JavaScript library for creating responsive, cascading grid layouts that automatically arrange elements for a visually appealing design.
Animate.css offers a collection of easy-to-use CSS animations you can add to websites and apps for extra flair, emphasis, or attention-grabbing effects.
mailgo replaces standard mailto and tel links with a modern modal, making it easy to customize email and phone link interactions on your website.
Splide offers a lightweight, flexible slider and carousel tool for websites, focusing on accessibility and zero dependencies. Written in TypeScript.
GMAP3 is a jQuery plugin that lets you easily create, customize, and manage Google Maps on your website using the Google Maps JavaScript API.
A simple jQuery plugin for creating and displaying slideshows on your website, making it easy to add interactive image galleries and presentations.
Discover web tools, scripts, and JavaScript libraries for creative web development projects. Explore demos and resources by Christian Effenberger.
Check if your browser supports WebGL and get troubleshooting help for enabling 3D graphics right in your browser.
Speed up your website with tools like instant.page and InstantClick, making pages load instantly for a smoother browsing experience.
See how to replace common jQuery features with plain JavaScript. Find clear examples for events, elements, AJAX, and utilities—no extra libraries needed.
RequireJS is a JavaScript module loader that helps you manage dependencies and optimize code loading for faster, more organized web development.
Easily add a responsive image or content slider to your website with bxSlider, a jQuery plugin that makes building sliders quick and simple.
Brython lets you write and run Python code directly in your web browser, making it easy to use Python for creating interactive web pages.
Browserify lets you use Node.js-style require statements in browser JavaScript, making it easier to build modular web applications with familiar tools.
xScope offers a set of tools for Mac to measure, align, and inspect on-screen graphics, making it easier to perfect UI and layout designs.
Raphaël is a JavaScript library that helps you create interactive vector graphics and animations for the web with easy-to-use tools.
CSS Stats analyzes your stylesheets, offering clear visualizations and insights to help you improve design consistency and track your app’s performance.
Nuxt PWA adds reliable Progressive Web App features to Nuxt projects, making your sites faster, offline-ready, and more engaging for users.
Next.js is a full-stack web framework for building fast, scalable React applications, offering features like server-side rendering and easy routing.
MathJax lets you display beautiful math formulas on any browser using JavaScript—no special setup needed. Make math accessible and easy to read online.
Chart.js is a free JavaScript library that lets you add simple, flexible charts to your website with easy setup and customization options.
Create beautiful, responsive image and video galleries for web and mobile using this lightweight JavaScript plugin, compatible with major frameworks.
Simple.css is a lightweight CSS framework that helps you make semantic HTML look great with minimal setup—perfect for clean, quick website styling.
Create stunning WordPress sliders and interactive visuals with Slider Revolution, a user-friendly tool for building eye-catching websites and designs.
vis.js is a browser-based visualization library for creating interactive timelines, graphs, and networks with large, dynamic datasets.
Access free, ready-to-use web design tools and resources for personal or commercial projects—no attribution needed.