diff --git a/conda-forge-keeplist.sh b/conda-forge-keeplist.sh
new file mode 100755
index 0000000000000000000000000000000000000000..0d8cfad31e1b4ce749f2ec1c441069893c5f890c
--- /dev/null
+++ b/conda-forge-keeplist.sh
@@ -0,0 +1,3 @@
+#!/usr/bin/env sh
+
+grep -h conda-forge linux/*.txt macosx/*.txt | sort | uniq