diff --git a/cbz/cbr2cbz b/cbz/cbr2cbz
new file mode 100644
index 0000000..08fcd98
--- /dev/null
+++ b/cbz/cbr2cbz
@@ -0,0 +1,27 @@
+#!/bin/sh
+
+set -e
+
+usage(){
+	printf 'Usage: %s [files...]\n' "$0"
+	exit 64 # sysexits.h(3) EX_USAGE
+}
+
+command -v zip \
+		>/dev/null \
+	&& command -v unrar \
+		>/dev/null
+
+test -n "$1" \
+	|| usage
+
+d="$(mktemp -d || printf '%s/.cbr2cbz\n' "$HOME/")"
+if test -n "$DEBUG"
+then set -x; d=x
+else trap 'rm -rf "$d"; trap - EXIT; exit' EXIT INT HUP
+fi
+
+while test -n "$1"; do
+	unrar x -op"$d" "$1"
+	zip -Z deflate "$1".cbz "$d"/*
+done