Code & Markup.html · .htm · .xhtml
HTML viewer
About HTML
Web pages — render in sandboxed iframe.
HTML files render in an isolated sandboxed iframe with no network, no top access, no scripts — safe to open arbitrary HTML without worrying about cross-origin shenanigans.
FAQ
- What is a HTML file?
- HTML files render in an isolated sandboxed iframe with no network, no top access, no scripts — safe to open arbitrary HTML without worrying about cross-origin shenanigans.
- Is my file uploaded?
- No. Files are opened entirely in your browser using local JavaScript and WebAssembly. Nothing is sent to a server.
- Does it work on mobile?
- Yes. The viewer is mobile-first and works on phones, tablets, and desktops.
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- .rmdR MarkdownR Markdown with code chunks.Open
- .texLaTeXLaTeX source with math rendering.Open
- .bibBibTeXBibTeX bibliography database.Open
- .adocAsciiDocAsciiDoc structured text.Open