Paste any HTML code below and instantly see it rendered in your browser — no file needed, no server involved. Supports full HTML documents and bare snippets. Use the responsive preview buttons to simulate mobile, tablet and desktop layouts.
An HTML viewer is an online tool that renders your HTML code and shows you exactly how it looks in a browser, without needing to create a file or open a separate browser tab.
Paste your HTML into the input panel — the preview updates automatically. You can also press Cmd+Enter / Ctrl+Enter or click the Preview button.
Yes. Paste any HTML fragment — with or without a DOCTYPE declaration — and the viewer renders it immediately.
Yes. All rendering happens entirely in your browser inside a sandboxed iframe. No data is ever sent to any server.
Yes. Use the Mobile (375 px), Tablet (768 px) and Desktop buttons to simulate different screen widths inside the preview panel.
Yes. Click the Open button to open your rendered HTML in a full browser tab.