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.

100 +0

2,208 +0

385 +0

phantomas by macbre

Headless Chromium-based web performance metrics collector and monitoring tool

created at July 7, 2012, 4:28 p.m.

66 +0

2,252 +0

141 +0

tracing-framework by google

Web Tracing Framework libraries and extensions.

created at Nov. 8, 2012, 7:32 p.m.

129 +0

2,650 +0

226 +0

psi by GoogleChromeLabs

PageSpeed Insights Reporting for Node

created at May 26, 2014, 10:05 p.m.

53 +0

3,102 +0

129 +0

csso by css

CSS minifier with structural optimizations

created at Feb. 15, 2011, 3:31 p.m.

96 +0

3,729 +1

188 +0

perfmap by zeman

Front-end performance heatmap bookmarklet.

created at Sept. 17, 2014, 9 p.m.

101 +0

3,792 +0

128 +0

clean-css by clean-css

Fast and efficient CSS optimizer for node.js and the Web

created at Feb. 27, 2011, 9:05 p.m.

76 +0

4,142 +2

322 +0

headjs by headjs

The only script in your HEAD.

created at Nov. 29, 2010, 11:15 a.m.

107 +0

4,165 +0

350 +0

bundlesize by siddharthkp

Keep your bundle size in check

created at June 27, 2017, 8:01 a.m.

33 +0

4,445 +0

176 +1

html-minifier by kangax

Javascript-based HTML compressor/minifier (with Node.js support)

created at Feb. 5, 2010, 5:54 p.m.

101 +1

4,908 +5

569 -1

jsdelivr by jsdelivr

A free, fast, and reliable Open Source CDN for npm, GitHub, Javascript, and ESM

created at July 13, 2012, 5:25 p.m.

129 +0

5,423 +9

2,035 +2

imagemin by imagemin

[Unmaintained] Minify images seamlessly

created at Nov. 4, 2013, 9:26 a.m.

61 +1

5,502 +0

259 +1

instantclick by dieulot

InstantClick makes following links in your website instant.

created at Nov. 23, 2013, 10:08 a.m.

102 +0

5,513 +1

246 -1

gm by aheckmann

GraphicsMagick for node

created at June 11, 2010, 12:11 p.m.

114 +0

6,928 +4

612 +0

lozad.js by ApoorvSaxena

🔥 Highly performant, light ~1kb and configurable lazy loader in pure JS with no dependencies for responsive images, iframes and more

created at Aug. 28, 2017, 8:28 p.m.

115 +0

7,412 +4

449 +0

stats.js by mrdoob

JavaScript Performance Monitor

created at April 8, 2010, 11:54 a.m.

180 +0

8,601 +4

1,202 -1

critical by addyosmani

Extract & Inline Critical-path CSS in HTML pages

created at June 28, 2014, 9:31 a.m.

143 +0

9,962 +5

374 +0

webpack-bundle-analyzer by webpack-contrib

Webpack plugin and CLI utility that represents bundle content as convenient interactive zoomable treemap

created at Oct. 26, 2016, 4:24 a.m.

99 +0

12,503 +3

476 +0

UglifyJS by mishoo

JavaScript parser / mangler / compressor / beautifier toolkit

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

275 +0

12,948 +6

1,239 +1

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.

284 +0

17,310 +10

1,727 +0