YSlow analyzes web pages and suggests ways to improve their performance based on a set of rules for high performance web pages.
created at Jan. 25, 2012, 7:55 p.m.
Javascript-based HTML compressor/minifier (with Node.js support)
created at Feb. 5, 2010, 5:54 p.m.
Webpack plugin and CLI utility that represents bundle content as convenient interactive zoomable treemap
created at Oct. 26, 2016, 4:24 a.m.
WebPageTest API wrapper for NodeJS
created at Sept. 26, 2012, 6:02 p.m.
Glue is a simple command line tool to generate CSS sprites
created at Jan. 1, 2012, 6:22 p.m.
Grunt task for converting a set of images into a spritesheet and corresponding CSS variables
created at Aug. 19, 2012, 5:08 a.m.
Make optimisation of images part of your automated build process
created at Feb. 15, 2013, 5:33 p.m.
minimal monitor for JS Heap Size via performance.memory
created at Jan. 21, 2015, 6:34 a.m.
Compresses linked and inline javascript or CSS into a single cached file.
created at Feb. 5, 2010, 3:48 p.m.
Performance-Bookmarklet helps to analyze the current page through the Resource Timing API, Navigation Timing API and User-Timing - requests by type, domain, load times, marks and more. Sort of a light live WebPageTest.
created at Oct. 6, 2014, 12:57 a.m.
[ARCHIVED] Uses PhantomJS to headlessly analyze web pages and generate manifests. You may be able to use the puppeteer-har package instead.
created at April 13, 2011, 9:56 p.m.