diff --git a/tools/from-atascii.sh b/tools/from-atascii.sh
new file mode 100755
index 0000000..3c05f2e
--- /dev/null
+++ b/tools/from-atascii.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+# converts from ATASCII (Atari 400/800/XL/XE) to ASCII
+
+tr '\233\177' '\12\11' < ${1} > ${2}
diff --git a/tools/to-atascii.sh b/tools/to-atascii.sh
new file mode 100755
index 0000000..344c1c9
--- /dev/null
+++ b/tools/to-atascii.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+# converts from ASCII to ATASCII (Atari 400/800/XL/XE)
+
+tr '\12\11' '\233\177' < ${1} > ${2}