diff --git a/tools/mkencodingtable b/tools/mkencodingtable
new file mode 100755
index 00000000..9e0a0584
--- /dev/null
+++ b/tools/mkencodingtable
@@ -0,0 +1,39 @@
+#!/usr/bin/python3
+
+# Copyright (C) 2017 Reece H. Dunn
+#
+# This file is part of ucd-tools.
+#
+# ucd-tools is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# ucd-tools is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with ucd-tools.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+import sys
+
+def readtable(filename):
+	with open(filename) as f:
+		for line in f:
+			if line == '\n' or line.startswith('#'):
+				continue
+			yield line.split()[0:2]
+
+table = {}
+for code, mapped in readtable(sys.argv[1]):
+	table[int(code, 0)] = mapped.lower()
+
+for code in range(0x80, 0x100):
+	if (code % 8 == 0):
+		print('\t', end='')
+	print('%s, ' % table.get(code, '0xfffd'), end='')
+	if (code % 8 == 7):
+		print('// %02x\n' % (code - 7), end='')