diff --git a/README.md b/README.md
index 86990c67..0ca91ad5 100644
--- a/README.md
+++ b/README.md
@@ -381,7 +381,8 @@ Table of Contents
    * http://www.stackhive.com/ - Cloud based IDE in browser that supports HTML5/CSS3/jQuery/Bootstrap
    * http://www.tadpoledb.com/ - IDE in browser Database tool. Support Amazon RDS, Apache Hive, Apache Tajo, CUBRID, MariaDB, MySQL, Oracle, SQLite, MSSQL, PostgreSQL and MongoDB databases.
    * https://www.sourcelair.com/ - In-browser IDE for Django, JavaScript, HTML5, Python, and more. Integrates with Git, Mercurial, GitHub, Heroku and more. Free forever for 1 private project.
-
+   * https://codepen.io/ - CodePen is a playground for the front end side of the web.
+   * https://jsfiddle.net/ - In-browser editor for JavaScript, HTML, and CSS
 ## Analytics, Events and  Statistics
 
  * https://www.librato.com/ - Event/Data collection service with analysis and graphs. Limited plan for free.