Live HTML Viewer
Code → UI
Write, paste, and test raw HTML code with a real-time instant preview pane.
About this tool
About Live HTML Viewer
Live HTML Viewer is a free, browser-based tool that lets you write, paste, and test raw HTML code with a real-time instant preview pane. It supports Code → UI. Everything runs locally on your device, so your files are never uploaded to a server. There's no sign-up, no watermark, and no limit — just open Live HTML Viewer, add your input, and get results instantly.
How to use Live HTML Viewer
1
Write Code
Type or paste your raw HTML, CSS, and JS into the editor pane.
2
Live Preview
The iframe instantly renders your code in a secure sandboxed environment.
3
Test UI
Interact with your code exactly as it would appear on a live webpage.
Key features
Real-Time Rendering
See your UI changes update instantly as you type without ever needing to hit refresh, making it the perfect real-time HTML editor.
Live Console Debugging
Test JavaScript logic easily with our integrated console overlay that catches logs, warnings, and errors directly in the browser.
Sandboxed Security
Test raw HTML and third-party JavaScript snippets safely within an isolated, sandboxed environment to prevent XSS attacks.
Zero Server Lag
Because everything runs client-side, your code is never uploaded to a server, ensuring maximum privacy, zero latency, and instant previews.
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