Question 1

Is HTML Viewer Pro free to use?

Accepted Answer

Yes. HTML Viewer Pro is completely free with no registration. All core features including viewing, formatting, minifying, validating, and diffing HTML are available at no cost.

Question 2

Is my HTML code stored on your servers?

Accepted Answer

No. Your HTML is processed entirely in your browser. Content may be saved locally in your browser storage for convenience and is never uploaded to our servers.

Question 3

Does the live preview support CSS and JavaScript?

Accepted Answer

Yes. The live preview renders HTML with embedded CSS and JavaScript inside a sandboxed iframe for safer previewing of markup.

Question 4

Can I use HTML Viewer Pro for commercial projects?

Accepted Answer

Yes. You may use HTML Viewer Pro for personal, educational, and commercial workflows including client work and production HTML editing, subject to our Terms of Service.

Question 5

What file types can I import?

Accepted Answer

You can import .html and .htm files directly into the editor using the Import button or your browser file picker.

Free Online HTML Viewer and Editor with Live Preview