Sometimes you need to see a fragment of HTML without a project around it: an email template, a snippet from a ticket, a generated page. A live viewer renders it as you type. The important detail is isolation: the preview runs in a sandboxed frame with no access to the site, so pasting unknown markup is safe.
What you'll learn
- Render HTML live with styles, fonts and scripts
- Understand what the sandbox allows and blocks
- Download or copy the finished page
Step by step
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Paste HTML on the left
Open the HTML Viewer. A full page or a fragment both work; Sample loads a small styled page with a working button.
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Watch it render
Auto-preview re-renders 250 ms after you stop typing. Turn it off and press Refresh preview or Ctrl+Enter for manual control.
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Use full screen for real work
Full screen gives the editor and preview the whole window, useful for templates that need width.
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Export
Copy HTML or Download .html when the page looks right.
Common problems
A link does nothing
The sandbox blocks pop-ups and navigating the parent tab. Links that stay inside the preview work.
An external script did not load
The preview allows external resources, but the resource host must serve them over HTTPS and allow embedding.
FAQ
Can the previewed page read my LogShare data?
No. It runs with an opaque origin inside a sandboxed frame: no cookies, no storage, no access to this site.
Is the HTML uploaded?
No. Source is handed to the preview frame locally; reloading clears it.