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Paste HTML code, upload an HTML file, or enter a URL to preview it instantly. Free, fast, and works in your browser. HTML URL Load URL HTML Code Upload HTML ▶ Run Example Clear Download Ready Live Preview Fullscreen About HTML Viewer HTML Viewer is a simple and easy-to-use online tool that lets you preview HTML code directly in your browser. You can paste HTML code, upload an HTML file, or enter an HTML URL to view the page instantly. How to Use HTML Viewer Paste your HTML code into the HTML Code editor. Click Run to preview your HTML. Or upload an .html or .htm file. You can also enter an HTML URL and click Load URL . Use Fullscreen to view the preview in a larger window. Click Download to save your HTML code as an HTML file. Features Live HTML preview Paste and edit HTML code Upload HTML files Preview HTML from a URL Example HTML code Fullscreen preview Download HTML files Mobile-friendly and responsive No software installation requir...