diff --git a/tools/rw-heatmaps/.gitignore b/tools/rw-heatmaps/.gitignore
new file mode 100644
index 000000000..e92d21d11
--- /dev/null
+++ b/tools/rw-heatmaps/.gitignore
@@ -0,0 +1,6 @@
+results-*.csv
+rw-heatmaps
+*.jpg
+*.jpeg
+*.png
+*.tiff