lighthouse by GoogleChrome

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

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

594 +0

28,401 +9

9,387 +8

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.

286 +0

17,542 +12

1,732 +1

UglifyJS by mishoo

JavaScript parser / mangler / compressor / beautifier toolkit

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

274 -1

13,164 +2

1,247 -1

svgo by svg

⚙️ Node.js tool for optimizing SVG files

created at Aug. 22, 2012, 10:41 a.m.

243 +0

21,027 +26

1,392 +2

sharp by lovell

High performance Node.js image processing, the fastest module to resize JPEG, PNG, WebP, AVIF and TIFF images. Uses the libvips library.

created at Aug. 19, 2013, 8:24 p.m.

228 +0

29,275 +58

1,295 +2

stats.js by mrdoob

JavaScript Performance Monitor

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

181 +0

8,732 +7

1,198 +0

critical by addyosmani

Extract & Inline Critical-path CSS in HTML pages

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

142 -1

10,037 +1

371 +0

tracing-framework by google

Web Tracing Framework libraries and extensions.

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

126 +0

2,646 +0

200 +0

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.

125 +0

5,661 +15

2,057 +5

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

7,455 -1

446 -1

gm by aheckmann

GraphicsMagick for node

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

114 +0

6,957 +2

614 +0

headjs by headjs

The only script in your HEAD.

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

107 +0

4,157 +0

349 +0

perfmap by zeman

Front-end performance heatmap bookmarklet.

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

102 +0

3,792 +0

127 +0

instantclick by dieulot

InstantClick makes following links in your website instant.

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

102 +0

5,513 +2

246 +0

html-minifier by kangax

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

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

100 +0

4,942 +4

571 +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

12,588 +3

488 +0

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.

99 -1

2,204 +0

383 +0

csso by css

CSS minifier with structural optimizations

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

95 +0

3,762 +0

187 +0

ucss by oyvindeh

Find unused and duplicate CSS

created at Aug. 3, 2012, 8:53 a.m.

76 +0

1,620 +1

64 +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.

74 +0

4,166 +1

323 +0