diff --git a/readme.md b/readme.md
index 4ec54427971f..5341e57753d1 100644
--- a/readme.md
+++ b/readme.md
@@ -93,4 +93,6 @@ There are two options:
 * [simshaun/recurr](https://github.com/simshaun/recurr) - PHP library for working with recurrence rules
 * [quilljs/quill](https://github.com/quilljs/quill/) - A cross browser rich text editor with an API
 * [Maatwebsite/Laravel-Excel](https://github.com/Maatwebsite/Laravel-Excel) - An eloquent way of importing and exporting Excel and CSV files for Laravel
-* [thephpleague/fractal](https://github.com/thephpleague/fractal) - Output complex, flexible, AJAX/RESTful data structures
\ No newline at end of file
+* [thephpleague/fractal](https://github.com/thephpleague/fractal) - Output complex, flexible, AJAX/RESTful data structures
+* [ezyang/htmlpurifier](https://github.com/ezyang/htmlpurifier) - Standards compliant HTML filter written in PHP
+* [cerdic/css-tidy](https://github.com/Cerdic/CSSTidy) - CSSTidy is a CSS minifier