Open Source JavaScript Design Software
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JavaScript Design Software
View 77 business solutionsBrowse free open source JavaScript Design Software and projects below. Use the toggles on the left to filter open source JavaScript Design Software by OS, license, language, programming language, and project status.
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Catch Bugs Before Your Customers DoMove from alert to fix before users notice. AppSignal monitors errors, performance bottlenecks, host health, and uptime—all from one dashboard. Instant notifications on deployments, anomaly triggers for memory spikes or error surges, and seamless log management. Works out of the box with Rails, Django, Express, Phoenix, Next.js, and dozens more. Starts at $23/month with no hidden fees.
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Go from Code to Production URL in SecondsSkip the Kubernetes configs. Cloud Run handles HTTPS, scaling, and infrastructure automatically. Two million requests free per month.
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iFrame Resizer
Keep same and cross domain iFrames sized to their content
Size cross domain iFrames to content with support for window/content resizing, and multiple iFrames. This library enables the automatic resizing of the height and width of both same and cross domain iFrames to fit their contained content. It provides a range of features to address the most common issues with using iFrames. Provides a range of page size calculation methods to support complex CSS layouts. Detects changes to the DOM that can cause the page to resize using MutationObserver. Detects events that can cause the page to resize (window resize, CSS animation and transition, orientation change and mouse events). Fixes in page links in iFrame and supports links between the iFrame and parent page. Works with ViewerJS to support PDF and ODF documents. The package contains two minified JavaScript files in the js folder. The first (iframeResizer.min.js) is for the page hosting the iFrames. -
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HTML5 Boilerplate
The web’s most popular front-end template
HTML5 Boilerplate is a popular and professional front-end template that lets you build fast, robust and adaptable web sites or applications. It’s built with the combined knowledge and effort of hundreds of developers over a span of years, creating a powerful tool in one small package. HTML5 Boilerplate comes loaded with great features, such as HTML5 support, optimized Google Analytics snippet, jQuery and Modernizr, and so much more. It supports the latest and most popular browsers and does not impose a specific development philosophy or framework, so you can code any way you want. -
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Image-Map
Responsive, dynamic image maps
A native JavaScript solution for creating responsive image-maps that rerender on image or viewport changes. -
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LLM React App Javascript Template
The Javascript template for an LLM react node app
This template is an example project for a simple Large Language Model (LLM) application built on top of React and Node. This template was built on top of the React template app from nano-react-app and updated with a Node server that uses HuggingFace.js and LangChain.js to connect to supported large language models. Use this template to easily build and run an LLM app. -
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Berry Free React Material UI
Berry free react material admin template for faster web development
Berry is a free Material UI admin dashboard template built with React. It is meant to provide the best possible User Experience with highly customizable feature-rich pages. It is a complete Dashboard Template that has easy and intuitive responsive design whether it is viewed on retina screens or laptops. -
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Boring Avatars
JavaScript React library that generates custom, SVG-based avatars
Boring avatars is a tiny JavaScript React library that generates custom, SVG-based avatars from any username and color palette. You can embed your boring avatars using the boring avatars source. Choose a random avatar from a specific user and a color palette. -
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GitHub Dark
Dark GitHub style
GitHub-Dark is a userstyle that transforms GitHub’s interface into a coherent dark theme, covering repositories, issues, pull requests, gists, and profile pages. Distributed as a CSS stylesheet intended for the Stylus browser extension, it applies a comprehensive palette, rebalances contrast, and refines syntax colors for code views to ensure readability in low-light settings. The project goes beyond simple inversion by thoughtfully adjusting backgrounds, borders, badges, and diff highlights so the UI feels native rather than “flipped.” It includes targeted fixes for edge cases across GitHub’s many subpages, aiming for consistency while preserving the information hierarchy of the original design. Users can apply the theme selectively, override variables, or combine it with other userstyles to fit personal preference. Even with GitHub’s own theme options, GitHub-Dark remains a carefully tuned alternative for people who want a specific aesthetic or more granular control. -
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Vieb
Vim bindings for the web by design
Free, open source, fast and secure. Local first adblocking, auto-complete, AMP protection, custom redirects and more, all without web requests. Privacy with strict permission system, navigator overrides, custom useragent, custom WebRTC policy and more. Accessible with custom themes, full interface & fontsize scaling, page zooming, spellcheck and mouse support. Security settings with permissions, cache usage, cookie management, (auto-)download settings and more. Window splitting with buffer, split, Vexplore and Ctrl-w bindings, for multi-window browsing. Map commands for completely custom keyboard sequences, keystrokes, commands and actions. Viebrc config file for all custom/Vim/Vieb commands to configure settings permanently. Set command for runtime setting configuration exactly like Vim. Vim-compatible options: showcmd, timeout, colorscheme, maxmapdepth, spelllang, splitright, smartcase etc. Container tabs with colored grouping, auto-clearing. -
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Basically Basic Jekyll Theme
Your new Jekyll default theme
Basically Basic is a Jekyll theme meant as a substitute for the default Minima, with a few enhancements thrown in for good measure. If you're running Jekyll v3.5+ and self-hosting you can quickly install the theme as a Ruby gem. If you're hosting with GitHub Pages you can install as a remote theme or directly copy all of the theme files (see structure below) into your project. Layouts, includes, Sass partials, and data files are all placed in their default locations. Stylesheets and scripts in assets, and a few development related files in the project's root directory. -
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Carbon Design System
A design system built by IBM
Carbon is IBM’s open source design system for products and digital experiences. With the IBM Design Language as its foundation, the system consists of working code, design tools and resources, human interface guidelines, and a vibrant community of contributors. The component libraries give developers a collection of reusable components for building websites and user interfaces. -
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Material Dashboard 2
Open Source Bootstrap 5 Material Design Admin
The most complex and innovative Dashboard Made by Creative Tim. Check our latest Freebie Bootstrap 5 Dashboard with a fresh, new design inspired by Google's Material Design 2. Designed for those who like bold elements and beautiful websites, Material Dashboard 2 is ready to help you create stunning websites and web apps. We created many examples for pages like Sign In, Notifications, Profile, and so on. Just choose between a Basic Design, an illustration, or a cover and you are good to go. Material Dashboard 2 is built with over 60 frontend individual elements, like buttons, inputs, navbars, nav tabs, cards, or alerts, giving you the freedom of choosing and combining. All components can take variations in color, which you can easily modify using SASS files and classes. -
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SingleSkin
Software for design single skin kites, speedgliders and paragliders
All-in-one software for desing single skin paragliders like Ozone XXLite. Allow to modify wing shape, profile, settings. Allow to print sew templates with scale 1:1 in A4 or other small printer's formats. Export sew templates to DXF. Main code writen in Javascript, GUI writen in Visual C# 2010 Express. -
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Chalk
Terminal string styling done right
Chalk 5 is ESM. If you want to use Chalk with TypeScript or a build tool, you will probably want to use Chalk 4 for now. Chalk comes with an easy to use composable API where you just chain and nest the styles you want. Chain styles and call the last one as a method with a string argument. Order doesn't matter, and later styles take precedent in case of a conflict. This simply means that chalk.red.yellow.green is equivalent to chalk.green. Color support is automatically detected, but you can override it by setting the level property. You should however only do this in your own code as it applies globally to all Chalk consumers. Detect whether the terminal supports color. Used internally and handled for you, but exposed for convenience. chalkStderr contains a separate instance configured with color support detected for stderr stream instead of stdout. Override rules from supportsColor apply to this too. supportsColorStderr is exposed for convenience. -
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Chirpy Jekyll Theme
A minimal, responsive and feature-rich Jekyll theme
A minimal, responsive and feature-rich Jekyll theme for technical writing. -
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Gloria
Gloria is a static website generator, based on NodeJS
V2 is deprecating lots of old functions, make sure to read the migrating docs. We're also slowly moving into typescript, and while I think it should work very well for your projects, legally I need to remind you that this is a satire of other projects. It currently supports having a content management system using MD files and tailwind CSS, with some bugs, but the main functionality and philosophy have been accomplished. This project aims to be a substitute for Jekyll, to help you create static websites without depending on Ruby. Because of its ease of use, extensibility, and support for md files, is also great for creating websites out of documentation that lives in a source code. -
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Hexo Theme Fluid
An elegant Material-Design theme for Hexo
An elegant Material-Design theme for Hexo. -
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Markdown
WeChat Markdown Editor
WeChat Markdown Editor | A highly concise WeChat Markdown editor, that supports Markdown syntax, color palette selection, multi-image upload, one-click document download, custom CSS style, one-click reset, and other features. Markdown documents are automatically rendered into WeChat graphics and text in real-time, so you no longer have to worry about the typesetting of WeChat articles! As long as you know the basic Markdown syntax, you can make a simple and beautiful WeChat graphic. Chrome browser is recommended for best results. In addition, for domestic (China) friends, accessing Gitee Pages will be relatively faster. The existing open-source WeChat Markdown editor has complicated styles and does not meet my personal aesthetic needs. When I use them for article typesetting, I often have to make some changes myself, which is time-consuming and labor-intensive, so I did secondary development. -
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Pendulum Editor
A simple markdown editor for static files (Hugo, Nexo, Jekyll
A simple editor for markdown/txt files. Supports saving changes into git repositories hosted anywhere (git add, git commit). Docker images and built binaries are provided. Written by @TitPetric and licensed under the permissive WTFPL. As you write or scroll either the text area or the preview pane, the scroll positions are synchronized based on percentage. In the case of images in the text, accuracy can be quite off, but it's possible to improve this behavior in the future. Most of the development is basically related to the preview of whatever it is you're editing. The editor itself doesn't care about anything other than the contents of the text file you're opening and trying to save. -
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nightTab
A neutral new tab page accented with a chosen colour
A neutral new tab page accented with a chosen color. Customize the layout, style, background and bookmarks with nightTab. Make the browser start page dark (or light, or anything in between). Do not access user information. This means nightTab will not request browser permissions. Aim to make everything on the user interface, within reason, customizable. Aim to make the user experience easy while supporting the above. Keep nightTab open source. Sharing the look and feel of one Bookmark to another can be achieved when editing a single Bookmark. The Bookmark edit modal has three options to copy settings to other Bookmarks. These checkboxes can be found at the bottom of the Visual & Name, Layout and Theme tab. Development and testing is only conducted on Chrome and Firefox. The performance and reliability of nightTab on other browsers is out of the scope of this project. -
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slick
The last carousel you'll ever need
slick is an open source, responsive carousel plugin that offers a great number of breakpoints, CSS3 transitions, touch events and so much more. It creates fully responsive, customizable and mobile-friendly carousels that can work with any html element. Everything you’ll ever need for your carousel, slick can achieve quickly and easily. It features a comprehensive range of settings, events, methods and more so you can build a carousel in exactly the way you want. It supports IE8+ as well as most modern browsers (Chrome, Firefox, Safari). See it in action in demos on http://kenwheeler.github.io/slick/ -
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Bootstrap Simple Admin Template
The most reliable HTML, CSS, and JavaScript simple admin template
Bootstrap Simple Admin Template is a simple admin template packed with more UI components than any other admin themes, its exceptional user interface is perfectly crafted and advanced layout features are optimized to suit every modern web application project and highly responsive to serve from a Mobile-first to a Desktop screen. -
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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, filters, blend modes, gradients, and keyframes—serving as both inspiration and a practical cookbook. Because each demo focuses on a single idea, it’s an effective way to learn new techniques without wading through a full framework. The project thrives on experimentation and community interest, making it a frequent reference for designers, front-end engineers, and educators who want visually striking yet lightweight solutions. -
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Google Material Design Lite
Material Design Components in HTML/CSS/JS
Material Design Lite lets you add a Material Design look and feel to your websites. It doesn’t rely on any JavaScript frameworks and aims to optimize for cross-device use, gracefully degrade in older browsers, and offer an experience that is immediately accessible. The MDL components are created with CSS, JavaScript, and HTML. You can use the components to construct web pages and web apps that are attractive, consistent, and functional. Pages developed with MDL will adhere to modern web design principles like browser portability, device independence, and graceful degradation. Material Design Lite (MDL) is a library of components for web developers based on Google's Material Design Philosophy: "A visual language for our users that synthesizes the classic principles of good design with the innovation and possibility of technology and science." Understanding the goals and principles of Material Design is critical to the proper use of the Material Design Lite components. -
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Hydejack
A boutique Jekyll theme for hackers, nerds, and academics
Hydejack's cover page on a variety of screens. Hydejack is a boutique Jekyll theme for hackers, nerds, and academics, with a focus on personal sites that are meant to impress. It includes a blog that is suitable for both prose and technical documentation, a portfolio to showcase your projects, and a resume template that looks amazing on the web and in print. Ever since the introduction of Dark Mode, link styles have been a bit of an issue. Specifically, finding an accent color that worked on both light and dark backgrounds was the problem. With Hydejack 9, the link style has been revamped so that legibility is no longer tied to the choice of accent color, giving you much more freedom in creating a unique design flavor for your site. -
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Materialette
A material design color palette
A material design color palette. Materialette Easily access every color in [Google's material design palette]. Download the latest build from the releases section. Make sure to choose your operating system appropriately. If you're using nvm, run the command $ nvm use to use the version of Node specified in the .nvmrc. There are some known issues with using electron + Tray with Linux.
