diff --git a/src/edu/macalester/comp124/stringtransformer/L33t.java b/src/edu/macalester/comp124/stringtransformer/L33t.java
new file mode 100644
index 0000000..3f33f3b
--- /dev/null
+++ b/src/edu/macalester/comp124/stringtransformer/L33t.java
@@ -0,0 +1,31 @@
+package edu.macalester.comp124.stringtransformer;
+
+
+/**
+ * Created by iangoodbar on 2/27/14.
+ */
+public class L33t extends StringTransformer {
+
+    @Override
+    public String transform(String s) {
+        s = s.replace('o', '0');
+        s = s.replace('l', '1');
+        s = s.replace('e', '3');
+        s = s.replace('a', '4');
+        s = s.replace('s', '5');
+        s = s.replace('t', '7');
+        s = s.replace('b', '8');
+        s = s.replace('O', '0');
+        s = s.replace('L', '1');
+        s = s.replace('E', '3');
+        s = s.replace('A', '4');
+        s = s.replace('S', '5');
+        s = s.replace('T', '7');
+        s = s.replace('B', '8');
+        return s;
+    }
+    @Override
+    public String toString() {
+        return "Haxxd";
+    }
+}
\ No newline at end of file
diff --git a/test/edu/macalester/comp124/stringtransformer/L33tTest.java b/test/edu/macalester/comp124/stringtransformer/L33tTest.java
new file mode 100644
index 0000000..b43ed8b
--- /dev/null
+++ b/test/edu/macalester/comp124/stringtransformer/L33tTest.java
@@ -0,0 +1,26 @@
+package edu.macalester.comp124.stringtransformer;
+
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+
+/**
+ * Created by iangoodbar on 2/27/14.
+ */
+public class L33tTest {
+    private final StringTransformer l33t = new L33t();
+
+    @Test
+    public void handlesEmptyString() {
+        assertEquals("", l33t.transform(""));
+
+    }
+    @Test
+    public void convertToL33t() {
+        assertEquals("4", l33t.transform("A"));
+        assertEquals("4", l33t.transform("a"));
+        assertEquals("1337", l33t.transform("leet"));
+        assertEquals("4pp13", l33t.transform("apple"));
+        assertEquals("411y0ur84554r38310ng70u5", l33t.transform("allyourbassarebelongtous"));
+    }
+}