GGfor Tools

HTML Viewer

Format, minify, and adjust indentation for HTML, then preview it safely inside a sandboxed iframe.

Sandboxed preview

Tips

  • The preview iframe is sandboxed with scripts allowed but isolated from the parent page (no same-origin).
  • Formatting re-indents tags with your chosen indent size; minify removes comments and extra spaces.
  • If whitespace-sensitive content looks off, disable whitespace collapsing before formatting.

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