diff --git a/bostr_cli.js b/bostr_cli.js
index f0c16b1..5e6c1d8 100755
--- a/bostr_cli.js
+++ b/bostr_cli.js
@@ -1,5 +1,6 @@
 #!/usr/bin/env node
 const { version } = require("./package.json");
+const { nip19 } = require("nostr-tools")
 const fs = require("fs");
 const cluster = require("cluster");
 const argv = process.argv.slice(2);
@@ -10,10 +11,11 @@ function showHelp() {
   console.log(
     "Usage: bostr [command] (argv)\n" +
     "Available command:\n" +
-    "  makeconf [conffile] - Make config file\n" +
-    "  start [conffile]    - Run bostr with specified config\n" +
-    "  check [conffile]    - Check config file\n" +
-    "  help                - Show this help text\n\n" +
+    "  makeconf [conffile]  - Make config file\n" +
+    "  start [conffile]     - Run bostr with specified config\n" +
+    "  check [conffile]     - Check config file\n" +
+    "  hexconverter [nip19] - Convert NIP-19 string to hex\n" +
+    "  help                 - Show this help text\n\n" +
     "Software is licensed under BSD-3-Clause\n" +
     "https://github.com/Yonle/bostr"
   );
@@ -68,6 +70,12 @@ switch (argv[0]) {
     process.env.BOSTR_CONFIG_PATH = readPath(argv[1]);
     require("./index.js");
     break;
+  case "hexconverter":
+    if (!argv[1]) return console.log("Usage: bostr hexconverter [npub|nsec|....] ....");
+    for (const i of argv.slice(1)) {
+      console.log(nip19.decode(i).data);
+    }
+    break;
   default:
     if (argv[0] && (argv[0] !== "help")) {
       console.error("Unrecognized command:", argv[0]);
diff --git a/bouncer.js b/bouncer.js
index 15f4bd3..5c5e935 100644
--- a/bouncer.js
+++ b/bouncer.js
@@ -204,7 +204,7 @@ function newConn(addr, client, reconn_t = 0) {
   if (client.readyState !== 1) return;
   const relay = new WebSocket(addr, {
     headers: {
-      "User-Agent": `Bostr (v${version}); The nostr relay bouncer; https://github.com/Yonle/bostr`
+      "User-Agent": `Bostr ${version}; The nostr relay bouncer; https://github.com/Yonle/bostr`
     },
     noDelay: true,
     allowSynchronousEvents: true
diff --git a/config.js.example b/config.js.example
index cb0d128..55fc7ea 100644
--- a/config.js.example
+++ b/config.js.example
@@ -102,13 +102,16 @@ module.exports = {
   //
   // NOTE: - Require NIP-42 compatible nostr client
   private_keys: {
-    // "pubkey-in-hex": "privatekey",
+    // "pubkey-in-hex": "privatekey-in-hex",
     // "pubkey-in-hex": "nsec ...."
   },
   // Tip: If you want to convert your pubkey/privatekey to hex,
   //      You could run the following command:
   //        $ node hexconverter.js npub....
   //        $ node hexconverter.js nsec....
+  //      or
+  //        $ bostr hexconverter npub....
+  //        $ bostr hexconverter nsec....
 
   // Server information.
   // Only for when nostr client requesting server information.
diff --git a/package.json b/package.json
index 3b7f1a9..cbfe7e5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bostr",
-  "version": "2.0.5",
+  "version": "2.0.6",
   "description": "Nostr relay bouncer",
   "main": "index.js",
   "scripts": {