diff --git a/free-programming-interactive-tutorials-en.md b/free-programming-interactive-tutorials-en.md
index a816f44f6..f88bb4a55 100644
--- a/free-programming-interactive-tutorials-en.md
+++ b/free-programming-interactive-tutorials-en.md
@@ -209,6 +209,7 @@
 
 * [CodeCombat](http://codecombat.com) - Python, JavaScript, CoffeeScript, Clojure, Lua, Io
 * [Codility](https://codility.com/programmers/)
+* [Introduction to the Coding Interview Prep Algorithms](https://www.freecodecamp.org/learn/coding-interview-prep/algorithms) (freeCodeCamp)
 * [Python Tutor](http://pythontutor.com) - Python, Java, JavaScript, TypeScript, Ruby, C, C++
 * [The Fullstack Tutorial for GraphQL](https://www.howtographql.com)