Developer Tools

SEO and Domain Analysis Tool by DNS Checker. Provides SEO Report, Meta Redirects and 404s, Client IP, Domain IP & Geo Location, etc

Proficy WebSpace browser plug-in.

Inspector is the tool which mimic display dimension between selected and hover element. It would be good for designers, QA

Check Open Graph on internet unreachable sites like localhost or under basic auth. Temporary host site head tags on hashed url.

Makes plain text files easier to read in Chrome

Inspect element for content, and margin.

QR Code Maker. Text, URL, phone numbers, SMS and contacts are supported. You can also decode QR code from image.

Simple CSS Reload utility

🐴 完全利用各个大厂的免费外链图片来做的免费图床，速度快！

This chrome extension enables screen sharing support for the duration of test.

Run custom Javascript, each time you visit a website

The Syntax Highlighter for Chrome