How to Use This HTML Viewer

This tool is a simple HTML editor and live preview viewer. You can write HTML code on the left side and immediately see the result on the right side. It is useful for testing small HTML blocks, landing page sections, website widgets, email templates, simple layouts, and quick code experiments.

  1. Editor area: The left side of the screen is the code editor. You can type, paste, edit, delete, or replace HTML code directly inside this area.
  2. Preview area: The right side of the screen shows the live result of your HTML code. Every time you change the code, the preview updates automatically.
  3. Preview button: Click the Preview button to open your current HTML code in a new browser window. This is useful when you want to see the result in a larger view.
  4. Format button: Click the Format button to automatically clean and organize your HTML code. This makes the code easier to read by fixing indentation and spacing.
  5. Sample button: Click the Sample button to insert a simple example code into the editor. This is useful if you want to quickly test that the editor and preview are working.
  6. Clear button: Click the Clear button to remove all code from the editor. After clearing, the preview area will also become empty.
  7. Import button: Click the Import button to upload an HTML, HTM, or TXT file from your computer. The file content will be loaded into the editor automatically.
  8. Export button: Click the Export button to download your current code as an HTML file. The downloaded file will be named code.html.
  9. Dark Theme button: Click the Dark Theme button to switch the editor between dark and light themes. This only changes the editor appearance, not your actual HTML code.
  10. Resize divider: Drag the vertical gray divider between the editor and preview panels to make the editor wider or smaller. This helps you control how much space each side uses.
  11. Live editing: You do not need to press any button to update the preview. The preview refreshes automatically whenever you type or change something in the editor.
  12. Working with full HTML pages: You can paste a complete HTML document including <!DOCTYPE html>, <html>, <head>, <style>, and <body>. The preview will render it inside the preview frame.
  13. Working with small HTML blocks: You can also paste only a small HTML fragment, such as a card, button, form, banner, or section. The tool will still show the result in the preview area.
  14. Saving your work: Before closing the page, use the Export button if you want to keep your code. If you close or refresh the page without exporting, unsaved changes may be lost.
  15. Best practice: Use the editor to test and improve your HTML code, use the preview to check how it looks, use Format to clean the code, and use Export when the final version is ready.