diff --git a/2d barcodes.md b/2d barcodes.md
new file mode 100644
index 000000000..bfdd117e5
--- /dev/null
+++ b/2d barcodes.md	
@@ -0,0 +1,5 @@
+- a [[list]].
+  - [[qr code]]
+  - [[aztec code]]
+  - [[maxicode]]
+  - [[data matrix]] up to 2.3k chars