diff --git a/readme.md b/readme.md
index 4e0e0c9..ba6102d 100644
--- a/readme.md
+++ b/readme.md
@@ -396,6 +396,7 @@ See [plaintextaccounting.org](https://plaintextaccounting.org) for a great overv
 - [mdv](https://github.com/axiros/terminal_markdown_viewer) - Styled terminal markdown viewer.
 - [glow](https://github.com/charmbracelet/glow) - Styled markdown rendering.
 - [gtree](https://github.com/ddddddO/gtree) - Use markdown to generate directory trees and the directories itself.
+- [mdformat](https://github.com/executablebooks/mdformat) - An opinionated markdown formatter.
 
 ### Security