diff --git a/README.md b/README.md
index 6d8ea1f0..5c63a223 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,8 @@
     <source media="(prefers-color-scheme: light)" srcset="https://github.com/user-attachments/assets/68dfb3bf-9466-44f3-b220-7067322c4887">
     <img alt="Quarkdown banner" src="https://github.com/user-attachments/assets/68dfb3bf-9466-44f3-b220-7067322c4887">
   </picture>
+
+  [![CodeFactor](https://www.codefactor.io/repository/github/iamgio/quarkdown/badge/main)](https://www.codefactor.io/repository/github/iamgio/quarkdown/overview/main)
 </p>
 
 Quarkdown is a Markdown parser and renderer that extends the capabilities of CommonMark and GFM with its own *Quarkdown