tracing-framework by google
Web Tracing Framework libraries and extensions.
created at Nov. 8, 2012, 7:32 p.m.
yslow by marcelduran
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.
memory-stats.js by paulirish
minimal monitor for JS Heap Size via performance.memory
created at Jan. 21, 2015, 6:34 a.m.
gulp-imagemin by sindresorhus
Minify PNG, JPEG, GIF and SVG images
created at Dec. 30, 2013, 5:53 p.m.
speedracer by speedracer
Collect performance metrics for your library/application.
created at May 1, 2017, 10:19 a.m.
WebPageTest.api-nodejs by catchpoint
WebPageTest API wrapper for NodeJS
created at Sept. 26, 2012, 6:02 p.m.
tmi by addyosmani
TMI (Too Many Images) - discover your image weight on the web
created at Oct. 31, 2014, 12:01 p.m.
timing.js by addyosmani
Navigation Timing API measurement helpers
created at Sept. 21, 2014, 12:02 p.m.
compression-webpack-plugin by webpack-contrib
Prepare compressed versions of assets to serve them with Content-Encoding
created at Aug. 5, 2013, 10:07 a.m.
grunt-contrib-imagemin by gruntjs
Minify PNG, JPG, GIF and SVG images.
created at Oct. 29, 2012, 2:28 p.m.
performance-bookmarklet by micmro
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.
grunt-spritesmith by twolfson
Grunt task for converting a set of images into a spritesheet and corresponding CSS variables
created at Aug. 19, 2012, 5:08 a.m.
Lazyload images, iframes, widgets with a standalone JavaScript lazyloaderconfess by jamesgpearce
[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.