diff --git a/contrib/craftscripts/clearblocks.js b/contrib/craftscripts/clearblocks.js
new file mode 100644
index 0000000000..4953a853d3
--- /dev/null
+++ b/contrib/craftscripts/clearblocks.js
@@ -0,0 +1,60 @@
+// Marks all blocks that have at least 3 exposed sides (adjacent to an air block)
+// and then deletes those blocks.
+// Based on jsa's MCEdit Filter clearBlocks.py
+
+importClass(Packages.com.sk89q.worldedit.world.block.BlockTypes)
+
+context.checkArgs(0, -1, "")
+
+var editSession = context.remember()
+var region = context.getSession().getRegionSelector(player.getWorld()).getRegion()
+
+var min = region.getMinimumPoint()
+var width = region.getWidth()
+var height = region.getHeight()
+var length = region.getLength()
+
+function sidesExposed(block) {
+  if (editSession.getBlock(block).getBlockType().equals(BlockTypes.AIR)) {
+    return 0
+  }
+  var sides = 0
+  if (editSession.getBlock(block.add(0, 0, 1)).getBlockType().equals(BlockTypes.AIR)) {
+    sides += 1
+  }
+  if (editSession.getBlock(block.add(0, 1, 0)).getBlockType().equals(BlockTypes.AIR)) {
+    sides += 1
+  }
+  if (editSession.getBlock(block.add(1, 0, 0)).getBlockType().equals(BlockTypes.AIR)) {
+    sides += 1
+  }
+  if (editSession.getBlock(block.add(0, 0, -1)).getBlockType().equals(BlockTypes.AIR)) {
+    sides += 1
+  }
+  if (editSession.getBlock(block.add(0, -1, 0)).getBlockType().equals(BlockTypes.AIR)) {
+    sides += 1
+  }
+  if (editSession.getBlock(block.add(-1, 0, 0)).getBlockType().equals(BlockTypes.AIR)) {
+    sides += 1
+  }
+  return sides
+}
+
+var destroyThese = []
+
+for (var i = 0; i < width; i += 1) {
+  for (var j = 0; j < length; j += 1) {
+    for (var k = 0; k < height; k += 1) {
+      var block = min.add(i, k, j)
+      if (sidesExposed(block) >= 3) {
+        destroyThese.push(block)
+      }
+    }
+  }
+}
+
+for (var i = 0; i < destroyThese.length; i += 1) {
+  editSession.setBlock(destroyThese[i], BlockTypes.AIR.getDefaultState())
+}
+
+context.print("[Clear Blocks] " + destroyThese.length + " blocks cleared.")