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Web performance architect and Chrome DevTools contributor building auditing tools, tracing utilities, and developer experience infrastructure.

web performance metrics and auditingChrome DevTools and browser instrumentationAI agents for code and debuggingdeveloper tooling and CLI utilitiesweb standards and feature detectionlightweight web embeds and performance

inferred from the public footprint

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Paul Irish

Top 5%
@paulirish

Chrome DevTools contributor who ships practical utilities that solve real problems: lite-youtube-embed cuts bloat from video embeds, git-open and git-recent streamline git workflows, and speedline surfaces performance insights from raw trace data.

Lighthouse. I built a tool that audits websites and rates them on speed and quality.

31k

Paul's Dotfiles. I made a collection of shell shortcuts and settings you can borrow from.

4.4k

Chrome DevTools Catalog. I collected the best tools and guides for Chrome's developer inspector.

7.1k

Lite YouTube Embed. I made YouTube embeds that load way faster than the standard ones.

6.3k

Git Open. I made a tool that opens your git repository website from the terminal.

3.4k

lighthouse-ci. Automate running Lighthouse for every commit, viewing the changes, and preventing regressions

7k

iOS WebKit Debug Proxy. I built a tool that debugs Safari on iPhones like Chrome DevTools.

6.2k

Git Recent. I made a tool that shows your recent git branches formatted nicely.

1k

Third Party Web. I made software that visits thousands of websites and measures third-party slowdown.

1.1k

TraceKit. Attempts to create stack traces for unhandled JavaScript exceptions in all major browsers.

1.1k

chrome-launcher. Launch Google Chrome with ease from node.

1.4k

Speedline. I built a tool that measures how fast websites actually appear to users.

810

Trace Cafe. I made a tool for sharing website performance recordings.

141

Side Tabs. I recovered and restored a Chrome extension that moves tabs to a sidebar.

64

Statikk. I made a secure server for testing websites on your computer.

41

Bundle Buddy. I built a tool that shows you what's bloating your website's code.

2.9k

MarkPaste. I built a tool that converts copied website text into clean markdown.

13

Lighthouse Score Calculator. I built a calculator that explains how website performance scores work.

102

Trace Stuff. I made utilities for tracing and analyzing software performance.

13

Web Feature Availability. I made a tool that shows what web features your visitors can actually use.

91

NPM Publish DevTools Frontend. I made a tool that automates publishing developer tools to NPM.

9

HTML5Shiv. I wrote a script that makes old Internet Explorer understand modern HTML.

9.8k

CopyLink-extension. Copy link to current page into the clipboard

8

Caltrain Schedule. I built an offline train schedule app for the Bay Area.

51

Lite Google Maps Embed. I made a lightweight Google Maps embed that loads faster.

12

gf3hairday. ITS FUCKING GLAMOUROUS FEBRUARY 3rd!

7

Viewport Width Visualization. I made a tool that shows what websites look like on every device size.

22

Colorcat. I made cat command output show up in color.

17

Gmail Mailing List Permalink. I made a tool that gives you direct links to Gmail mailing list messages.

7

LikeBlock. I made a tool that hides Facebook Like buttons from websites.

12

Mojibar. I built a fast emoji search and copy tool for your browser.

63

Memory Stats. I built a memory monitor for websites that shows live usage.

2.1k

Email2Feed. I built a service that turns email into a feed format.

12

GitHub Email. I built a tool that finds GitHub users' email addresses from public traces.

1k

Font Face Detect. I wrote a tool that detects custom font support in browsers.

55

Box Shadow Gallery. I collected 39 ridiculous box shadow effects for designers.

51

MyDevice. I made a website that shows you your device specs.

8

Mothereffing Text Shadow. I made a tool that adds text shadows to web pages.

38

Lighthouse Build Tracker. I built a tool that tracks Lighthouse's build size history.

3

Netlogbytes. I made a tool that shows what data websites send and receive.

4

Third Party Decode. I built a tool that decodes URLs to show you which companies are involved.

53

Mothereffing HSL. I made a guide that explains how to use HSL color values.

16

Package Backbone. I made a tool that sets up JavaScript project structure automatically.

5

WebHID Explorer. I made a tool for viewing and testing hardware device communication.

8

gmail-popup-extension. opens gmail in a popup window. Nice if you open a lot of new tabs from it. chrome extension. it's dirty.

15

aoe-tech-tree-widget. JavaScript

1

CRI Request Interception. I fixed Chrome automation so request blocking works on first startup.

1

Chromedot. I wrote notes explaining how Chrome's internal systems work.

1

Fuse. I built a search tool that finds what you need in any list of text.

11

jQuery Mini Plugins. I collected useful code snippets that make websites work better.

50