Convert Punycode to Unicode
Decode Punycode encoding to Unicode. Runs entirely in your browser, so your data never leaves your device.
0 chars · 0 lines
Output
The result appears here as you type.
How to use Convert Punycode to Unicode
- 1. Paste your Punycode string. Enter the Punycode-encoded label, such as 'mnchen-3ya', exactly as it appears in a domain name or DNS record, without the 'xn--' prefix if your source omits it.
- 2. Let the tool decode it. The decoder applies the RFC 3492 Punycode algorithm to reconstruct the original Unicode characters that were compressed into ASCII-safe form for domain name encoding.
- 3. Review the decoded label. Check the output pane for the readable Unicode string, such as an accented or non-Latin word, that the Punycode label represents.
- 4. Copy the Unicode result. Copy the decoded label into a document, browser address bar reference or security note explaining what domain name the Punycode actually spells out.
When to use Convert Punycode to Unicode
Convert Punycode to Unicode reverses the RFC 3492 encoding used by internationalized domain names, turning an ASCII-safe label back into the original Unicode word. Reach for it whenever a browser or email client shows you a raw 'xn--' domain and you want to know what it actually says.
- Investigating a suspicious xn-- domain. A link in an email shows an 'xn--' prefixed domain instead of a normal address. Decoding the Punycode reveals the actual non-Latin or accented word behind it before you decide whether to trust it.
- Reading an internationalized domain in logs. Server access logs record visited domains in their ASCII-compatible Punycode form. Decoding an entry shows the real, human-readable domain name a visitor actually typed.
- Debugging IDN registration issues. A domain registrar's admin panel displays a customer's domain as Punycode. Decoding it confirms the domain matches the Unicode name the customer intended to register.
- Verifying a Punycode encoder round-trip. You are implementing IDN support and want to confirm that encoding a Unicode domain to Punycode and decoding it back here returns exactly the original string.
Examples
Unicode
Input
mnchen-3ya
Output
münchen
About the Convert Punycode to Unicode tool
Convert Punycode to Unicode is a free online tool that works entirely inside your web browser. Decode Punycode encoding to Unicode. Because the processing happens on your own device, nothing you enter is uploaded, logged or stored anywhere.
This page is one of 98 Unicode utilities on EditSafely. Each one does a single job well, and all of them follow the same rule: your input stays on your machine.
There is nothing to configure. Provide the input and the result appears on its own. A worked example further down the page shows exactly what the tool produces for a real input.
Because nothing leaves your device, the tool is suitable for sensitive content such as internal documents, credentials or customer data. It also responds instantly, since every keystroke is handled on your own machine rather than by a remote API.
Frequently asked questions
Does Convert Punycode to Unicode cost anything?
Yes, it is completely free. All 2,658 tools on EditSafely work without an account, a subscription or usage limits.
Is it safe to paste sensitive or confidential data?
No data leaves your device. The whole tool is JavaScript that runs inside your browser tab, so there is no upload, no server-side processing and no log of what you did. If you disconnect from the internet after the page loads, it keeps working.
How much text can I process at once?
There is no fixed limit. Because the work happens on your own device rather than on a shared server, the practical ceiling is your machine's memory, which comfortably handles inputs far larger than typical online tools allow.
Do I need to sign up or install anything?
Nothing to install and no account needed. Open the page in any up-to-date browser, including on a phone or tablet, and the tool is ready.
How do I use the result?
The output panel has a one-click copy button, and you can keep refining the input while you work; the result updates in place as you type.