UglifyJS by mishoo

JavaScript parser / mangler / compressor / beautifier toolkit

created at Aug. 15, 2010, 11:51 a.m.

JavaScript

275 +0

12,948 +6

1,239 +1

GitHub
lazysizes by aFarkas

High performance and SEO friendly lazy loader for images (responsive and normal), iframes and more, that detects any visibility changes triggered through user interaction, CSS or JavaScript without configuration.

created at Oct. 11, 2014, 9:03 p.m.

JavaScript

284 +0

17,310 +10

1,727 +0

GitHub
lighthouse by GoogleChrome

Automated auditing, performance metrics, and best practices for the web.

created at March 8, 2016, 1:03 a.m.

JavaScript

594 +2

27,879 +12

9,291 +2

GitHub