diff --git a/README.md b/README.md
index 3accc16..49eb99a 100644
--- a/README.md
+++ b/README.md
@@ -94,6 +94,7 @@ A curated list of awesome command-line frameworks, toolkits, guides and gizmos.
 
 *OS-related tools, including system administration, system debugging, and file and process management.*
 
+* [atop](http://www.atoptool.nl) - ASCII full-screen performance monitor that is capable of reporting the activity of all processes
 * [cv](https://github.com/Xfennec/cv) - Linux tool to show progress for cp, rm, dd, ...
 * [glances](https://github.com/nicolargo/glances) - Glances an Eye on your system
 * [htop](https://github.com/hishamhm/htop) - A ncurses based interactive process viewer which aims to be a better `top`