diff --git a/Tools-and-Environments.md b/Tools-and-Environments.md
index be6739f..ec02b4a 100644
--- a/Tools-and-Environments.md
+++ b/Tools-and-Environments.md
@@ -1,20 +1,23 @@
 ## SOURCE CODE EDITORS (very shortlist)
 
 * [Visual Code Studio](https://code.visualstudio.com/)
+* [Note Pad](https://notepad-plus-plus.org/)
 * [NeoVim](https://neovim.io/)
 * [Sublime Text](https://www.sublimetext.com/3)
 
 
+#### HTML CSS JS Code Playgrounds
+
+* [Stolon](http://stolon.raphaelbastide.com) and [code repo](https://gitlab.com/raphaelbastide/stolon);
+
+
+
 #### Remote Collaborative Code Environments
 
 * [Live Share - Visual Code Studio](https://code.visualstudio.com/learn/collaboration/live-share)
-
 * [Radicle is a peer-to-peer stack for building software together](https://radicle.xyz/)
-
 * [Shared Collaborative Online Tool](https://syncfiddle.net/)
-
 * [Glitch Teams](https://glitch.com/teams)
-
 * [Live Weave — Team Up](https://liveweave.com/)