How to use HTML File Viewer
- Start by adding the HTML you want to process into HTML File Viewer.
- Tune the HTML file control before you process.
- The result is computed live in your browser as you edit the input.
- Finish by choosing Copy to take the output with you.
About this tool
There is no server behind HTML File Viewer. HTML File Viewer works on HTML in your browser, transforming or previewing the markup you paste locally.
Generated previews are escaped or sandboxed so pasted markup cannot affect the tool. Nothing you enter is uploaded, and it keeps working offline once the page has loaded.
Frequently asked questions
How do I use HTML File Viewer?
HTML File Viewer runs entirely on your device: add your input using the HTML file control, and it processes it locally in real time.
Is HTML File Viewer free to use?
Yes — HTML File Viewer is completely free, with no usage limits.
Where is my data processed by HTML File Viewer?
Entirely in your browser — HTML File Viewer keeps your data on your own machine and sends nothing anywhere.
Will HTML File Viewer change my HTML structure?
HTML File Viewer only reformats or analyzes what you paste; the underlying structure of your HTML is preserved.
Can I use HTML File Viewer without a connection?
Yes — after the first load HTML File Viewer runs entirely offline.