Liveweave
Generative AI code editor and HTML, CSS, JS playground
About Liveweave
Liveweave is a free, browser-based code playground for HTML, CSS, and JavaScript with real-time live preview. It bundles 40+ popular front-end libraries, built-in tools like a CSS Explorer and Color Explorer, AI code assistance, and live collaboration, letting developers prototype, test, and share web snippets without any local setup.
Pros & Cons
Pros
- Completely free with no paywalled features
- No account needed to start coding
- Large built-in library selection saves manual CDN setup
- Handy extras like CSS Explorer and Color Explorer for designers
- Clean, beginner-friendly interface ideal for learning
Cons
- Limited to HTML, CSS, and JavaScript (separate Python editor aside)
- Requires a stable internet connection; no offline mode
- Less suited to large, multi-file production projects
- Fewer integrations than full IDEs
Key Features
Live Preview
See HTML, CSS, and JavaScript changes render instantly in a split-pane preview as you type.
40+ Built-in Libraries
One-click inclusion of popular libraries and frameworks like Bootstrap, Tailwind CSS, React, jQuery, D3.js, and Three.js.
Generative AI Code Editor
Generate and assist with code directly in the editor using built-in AI.
CSS Explorer
Interactively experiment with CSS properties such as gradients, shadows, and transforms and copy the generated code.
Color Explorer
Find colors, complementary palettes, and shades to use in your designs.
Real-time Linting
Live JavaScript and CSS validation flags errors and issues as you code.
Live Collaboration
Share a session and edit code together with teammates in real time.
Code Formatting & Export
Auto-format HTML, CSS, and JS, then download your work as an HTML file or ZIP archive.
No Account Required
Start coding immediately without signing up; create an account only to save and manage weaves.
Pricing
- Full HTML, CSS, JS editor with live preview
- 40+ built-in libraries and frameworks
- CSS Explorer, Color Explorer, and Graphics tools
- Generative AI code assistance
- Real-time JS and CSS linting
- Live collaboration
- Download as HTML file or ZIP
- Save weaves with a free account
Best For
Prototyping & Front-end Testing
Quickly mock up and test HTML/CSS/JS snippets without setting up a local dev environment.
Learning Web Development
Beginners and students practice coding with instant live feedback and built-in references.
Teaching & Demos
Educators demonstrate concepts and share runnable examples via a link.
Sharing Code Snippets
Save and share reproducible front-end snippets with teammates or the community.
Similar Tools
Visual Studio Code
Free, open-source code editor from Microsoft
Replicate
Run AI with an API
Qodo
AI-powered code integrity platform for automated testing and code review
Blackbox AI
AI coding assistant with 300+ models and autonomous agents
Carrd
Simple, free, fully responsive one-page sites
Pythagora
AI development platform that builds production-ready full-stack apps with multi-agent collaboration