diff --git a/atlas-standalone/src/main/scala/com/netflix/atlas/standalone/ImageDiff.scala b/atlas-standalone/src/main/scala/com/netflix/atlas/standalone/ImageDiff.scala
deleted file mode 100644
index 186c7dac0..000000000
--- a/atlas-standalone/src/main/scala/com/netflix/atlas/standalone/ImageDiff.scala
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Copyright 2014-2016 Netflix, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.netflix.atlas.standalone
-
-import java.awt.image.RenderedImage
-
-import com.netflix.atlas.core.util.PngImage
-import com.netflix.atlas.core.util.Streams._
-
-/**
-  * Command line tool for finding differences between two png images. The exit code will be 0
-  * if there is no difference and 1 if there is a difference. An output image will be created
-  * showing which pixels are different, black pixesls are the same for both, red pixels are
-  * different.
-  */
-object ImageDiff {
-
-  private def load(fname: String): RenderedImage = {
-    PngImage(scope(fileIn(fname))(byteArray)).data
-  }
-
-  private def store(fname: String, image: PngImage): Unit = {
-    scope(fileOut(fname))(image.write)
-  }
-
-  def main(args: Array[String]): Unit = {
-    if (args.length != 3) {
-      System.err.println(s"Usage: ImageDiff <image1> <image2> <diff-image>")
-      sys.exit(2)
-    }
-
-    val image1 = load(args(0))
-    val image2 = load(args(1))
-
-    val diff = PngImage.diff(image1, image2)
-    store(args(2), diff)
-    sys.exit(if (diff.metadata("identical") == "true") 0 else 1)
-  }
-}