About this utility
How to use Punycode & IDNA Hostname Converter
Convert internationalized hostnames to ASCII or decode xn-- labels locally.
What to provide
Enter only a hostname, without a URL scheme, path, query, or fragment.
- Paste, type, or drag and drop a supported text file into the input area.
- Choose the options that match your intended result.
- Select “Run tool” or press Ctrl/Command + Enter, then copy, download, or move the result back into the first input for another pass.
What the result means
Produces a bounded, inspectable punycode & idna hostname converter result locally.
Privacy and safety
This utility is loaded as browser code and processes your input only in this tab. OmniCastConverter has no upload endpoint and never stores your content, filenames, tokens, or secrets. Generated markup and code are shown as inert text and are never executed.
Limitations
- Browser IDNA behavior follows the platform implementation and does not establish domain ownership or safety.
Try the included example
Select “Load example” at any time to restore this tested sample.
münich.example