diff --git a/src/main/java/com/loafle/overflow/commons/utils/StringConvertor.java b/src/main/java/com/loafle/overflow/commons/utils/StringConvertor.java
new file mode 100644
index 0000000..42197f1
--- /dev/null
+++ b/src/main/java/com/loafle/overflow/commons/utils/StringConvertor.java
@@ -0,0 +1,15 @@
+package com.loafle.overflow.commons.utils;
+
+/**
+ * Created by snoop on 17. 8. 23.
+ */
+public class StringConvertor {
+
+    public static String intToIp(long i) {
+        return ((i >> 24 ) & 0xFF) + "." +
+                ((i >> 16 ) & 0xFF) + "." +
+                ((i >>  8 ) & 0xFF) + "." +
+                ( i        & 0xFF);
+    }
+
+}
diff --git a/src/test/java/com/loafle/overflow/commons/utils/StringConvertorTest.java b/src/test/java/com/loafle/overflow/commons/utils/StringConvertorTest.java
new file mode 100644
index 0000000..a159503
--- /dev/null
+++ b/src/test/java/com/loafle/overflow/commons/utils/StringConvertorTest.java
@@ -0,0 +1,17 @@
+package com.loafle.overflow.commons.utils;
+
+import org.junit.Test;
+
+/**
+ * Created by snoop on 17. 8. 23.
+ */
+public class StringConvertorTest {
+    @Test
+    public void intToIp() throws Exception {
+
+        String ipStr = StringConvertor.intToIp(3232235797L);
+
+        System.out.println(ipStr);
+    }
+
+}
\ No newline at end of file