diff --git a/README.md b/README.md
index 6a8f6ca..1f606ee 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,8 @@ Standalone offline HTML/JS tool for building APDU commands for SIM, USIM, and Gl
 
 Open `index.html` in any modern browser. No server required.
 
+**Demo:** [otaman.atroshin.ru](https://otaman.atroshin.ru)
+
 ## Build
 
 Tailwind CSS is used for styling. After cloning, rebuild the CSS:
@@ -348,4 +350,4 @@ Dark theme is supported. The app follows the OS preference on first visit, and a
 
 ## Localisation
 
-The UI is in Russian. English translations are in progress. Language is detected from the browser's `navigator.language` preference.
\ No newline at end of file
+The UI is in Russian. English translations are in progress. Language is detected from the browser's `navigator.language` preference.