diff --git a/docs/modules/u8g2.md b/docs/modules/u8g2.md
index ad7a90e5..fad39995 100644
--- a/docs/modules/u8g2.md
+++ b/docs/modules/u8g2.md
@@ -155,7 +155,10 @@ Add the desired fonts to the font selection sub-entry via `make menuconfig`.
 ### Bitmaps
 XBM bitmaps are supplied as strings to `drawXBM()` in contrast to the source code based inclusion of XBMs in upstream u8g2 library. This off-loads all data handling from the u8g2 module to generic methods for binary files. See [graphics_test.lua](../../lua_examples/u8g2/graphics_test.lua).
 
-Conversion of XBM bitmaps can be performed online with [Online-Utility's Image Converter](http://www.online-utility.org/image_converter.jsp): Convert from XBM to MONO format and upload the binary result.
+Conversion of XBM bitmaps can be performed online with
+
+- [Online-Utility's Image Converter](http://www.online-utility.org/image_converter.jsp): Convert from XBM to MONO format and upload the binary result.
+- [XBM 格式生成器](https://tech.biko.pub/#/tool/xbm): Free online tool. Convert any image to XBM format (as Lua module or C headers).
 
 ## I²C Display Drivers
 Initialize a display via I²C.