# HTML preview

> Free online HTML viewer: paste ChatGPT, Claude, or Gemini HTML (or open a local .html file) and render it in your browser. Code never uploads during preview.

Canonical: https://www.geminilaunch.com/tools/html-preview
Last updated: 2026-10-06

## What it does

- Paste HTML or open a local file.
- Preview at desktop, tablet, and phone widths.
- No account; preview stays private on your device.
- Publishing a shareable HTTPS URL is a separate step on GeminiLaunch.

## Related

- [Tools hub](https://www.geminilaunch.com/tools)
- [ZIP checker](https://www.geminilaunch.com/tools/zip-checker)
- [Preview guide](https://www.geminilaunch.com/blogs/preview-ai-html-online-before-publish)