diff --git a/free-programming-interactive-tutorials-en.md b/free-programming-interactive-tutorials-en.md
index 0861e51601d6a3dfec40b3f7c93e58a82e6f2015..5ef6eb9ee7ecb8ab5e744503cf0c74060363c0c5 100644
--- a/free-programming-interactive-tutorials-en.md
+++ b/free-programming-interactive-tutorials-en.md
@@ -148,6 +148,7 @@
 * [Codecademy jquery track](https://www.codecademy.com/learn/jquery)
 * [ES6 Interactive Guide](http://stack.formidable.com/es6-interactive-guide/#/)
 * [Functional Programming in Javascript](https://github.com/ReactiveX/learnrx)
+* [Javascript Algorithms and Data Structures Certification](https://www.freecodecamp.org/learn/javascript-algorithms-and-data-structures/basic-javascript) - freeCodeCamp
 * [Javascript interactive tutorial on CodeCademy](https://www.codecademy.com/learn/javascript)
 * [JavaScript interactive tutorial on CoderMania](http://www.codermania.com/javascript/lesson/1a/hello-world)
 * [Javascripting](https://github.com/sethvincent/javascripting)