diff --git a/convert.py b/convert.py
new file mode 100755
index 0000000..78c6553
--- /dev/null
+++ b/convert.py
@@ -0,0 +1,12 @@
+#!/usr/bin/env python3
+
+import argparse
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser()
+    parser.add_argument('-o', '--output', metavar='OUTPUT', help='Output file')
+    parser.add_argument('-s', '--size', metavar='WIDTHxHEIGHT', required=True, help='Stage size in pixels')
+    parser.add_argument('-r', '--reduce', action='store_true', help='Reduce the amount of danmakus if stage is full')
+    parser.add_argument('file', metavar='FILE', nargs='+', help='Comment file to be processed')
+    args = parser.parse_args()
+    print(repr(args))