diff --git a/docs/index.md b/docs/index.md
index 1811c2926a4..cb7235cd0be 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -1,6 +1,9 @@
 Arduino CLI is an all-in-one solution that provides Boards/Library Managers, sketch builder, board detection, uploader,
 and many other tools needed to use any Arduino compatible board and platform.
 
+In addition to being a standalone tool, Arduino CLI is the heart of all official Arduino development software (Arduino
+IDE, Arduino Web Editor). Parts of this documentation apply to those tools as well.
+
 ## Installation
 
 You have several options to install the latest version of the Arduino CLI on your system, see the [installation] page.