diff --git a/secure_token.js b/secure_token.js
new file mode 100644
index 0000000..32abccd
--- /dev/null
+++ b/secure_token.js
@@ -0,0 +1,16 @@
+const crypto = require('crypto');
+
+const secret = 'mysecret';
+const uri = '/my/uri';
+const expire = '1470055000';
+
+const md5 = crypto.createHash('md5');
+md5.update((secret + uri + expire), 'utf-8');
+const token = Buffer.from(md5.digest()).toString('base64').replace(/=|\+|\//g, (match) => ({
+  '=': '',
+  '+': '-',
+  '/': '_',
+}[match]));
+
+console.log(`http://www.example.org${uri}?st=${token}&e=${expire}`);
+
diff --git a/secure_token.php b/secure_token.php
index 8a3418e..de8db7a 100755
--- a/secure_token.php
+++ b/secure_token.php
@@ -4,10 +4,8 @@
 $uri = "/my/uri";
 $expire = "1470055000";
 
-$token = base64_encode(md5($secret . $uri . $expire, true));
-$token = str_replace("=", "", $token);
-$token = strtr($token, "+/", "-_");
+$token = str_replace(["=", '+', '/'], ['', '-', '_'], base64_encode(md5($secret . $uri . $expire, true)));
 
-print "http://www.example.org" . $uri . "?st=" . $token . "&e=" . $expire . "\n";
+echo "http://www.example.org" . $uri . "?st=" . $token . "&e=" . $expire . "\n";
 
 ?>
diff --git a/secure_token.py b/secure_token.py
index 0c8bd87..70fc6e3 100755
--- a/secure_token.py
+++ b/secure_token.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import base64
 import hashlib
@@ -8,7 +8,8 @@
 expire = '1470055000'
 
 md5 = hashlib.md5()
-md5.update(secret + uri + expire)
-token = base64.b64encode(md5.digest()).replace('=','').replace('+','-').replace('/','_')
+md5.update((secret + uri + expire).encode('utf-8'))
+token = base64.b64encode(md5.digest()).decode('utf-8').replace('=','').replace('+','-').replace('/','_')
+
+print('http://www.example.org%s?st=%s&e=%s' % (uri, token, expire))
 
-print 'http://www.example.org%s?st=%s&e=%s' % (uri, token, expire)