Encode Text to Punycode

Convert Unicode text into safe ASCII-compatible Punycode using this browser-based tool. Use it for domain labels or full text, toggle encoding behavior, and view results live. Import files, copy output, or export it all instantly and securely in your browser.

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Supported file types: .txt, .csv, .log, .json, .xml, .md, .html, .htm, .yaml, .yml, .ini
Total characters: 0
Options
Encode each label separately (split by dot)

How to Use:

Start by entering text into the input box on the left. You can also upload a plain-text file using the “Choose File” button. This tool encodes non-ASCII characters using the Punycode algorithm, which is commonly used for internationalized domain names. In the “Options” section, enable the toggle to treat each segment separated by dots as an individual domain label. For example, this ensures that mañana.com becomes xn--maana-pta.com. Once your output appears on the right, click “Copy Output” or “Export to File” to save the result. Use “Clear All” to reset everything including file input and toggles.

What the Encode Text to Punycode Tool can do:

This tool takes any Unicode text and encodes it into Punycode, which uses only ASCII characters. It’s especially useful for internationalized domain names and systems that require ASCII-safe formats. You can choose whether to encode the input as a whole or split it by dots and process each segment independently. Everything works entirely in your browser, so your data stays private and updates appear in real time. It also accepts file input in formats like .txt, .csv, .md, and others.

Example:

Input:

codemañana.com

Output (with label-by-label encoding):

codexn--maana-pta.com

Input:

codetäst.de

Output:

codexn--tst-qla.de

Common Use Cases:

This tool is helpful when preparing domain names for DNS records, encoding non-ASCII labels for hosting or email configuration, or learning how Punycode works in international web applications. Developers can use it to validate domain name formatting. Meanwhile, teachers or students can explore how Unicode converts to ASCII using real examples. Thanks to live preview and instant export options, this tool supports both quick testing and detailed formatting work.

Useful Tools & Suggestions:

If you’re converting to Punycode, you might also need URL-encode Text since they often work together for international domain handling. And if your input includes accents or diacritics, Remove Diacritics from Text can help simplify things before you encode.

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