HTML Viewer

Paste HTML or Markdown and instantly preview it.

HTML Viewer is a lightweight Chrome extension that lets you instantly preview HTML code without setting up a local environment. Simply paste your HTML snippet and get a live rendered preview in seconds. Whether you're debugging layouts, testing components, or learning HTML, this tool helps you iterate faster with zero setup. Now with comprehensive Markdown support! Open `.md` files directly in Chrome with a premium preview mode, use the interactive tab switcher to toggle between formats, and write faster with automatic scroll synchronization. Key features: • Live HTML, CSS, and JS preview with instant rendering • Complete Markdown (.md) viewer & editor with gorgeous typography • Real-time Scroll Synchronization (sync scroll) between the editor and preview panels • Native Chrome file previewer: Renders any `.md` file opened in Chrome with a clean formatted layout • Seamless drag-and-drop support: Drop `.html` or `.md` files to load them instantly • Built-in tab switching for separate HTML and Markdown workspaces • Save state automatically: Preserves your inputs and mode selection across sessions • Clean, distraction-free, and lightweight interface • No external tools or complex setups required