--- /dev/null
+#utf8 detector
+
+Detect if a Buffer is utf8 encoded.
+It need The minimum amount of bytes is 4.
+
+
+```javascript
+ var fs = require('fs');
+ var isUtf8 = require('is-utf8');
+ var ansi = fs.readFileSync('ansi.txt');
+ var utf8 = fs.readFileSync('utf8.txt');
+
+ console.log('ansi.txt is utf8: '+isUtf8(ansi)); //false
+ console.log('utf8.txt is utf8: '+isUtf8(utf8)); //true
+```
+