Useful little time-saver. This adds clipboard.js to Stack Overflow, GitHub, Gist, MDN, Medium, NPM and more.
Adds a colour picker tool. Great for matching CSS values to images etc.
Google Analytics Opt-out Add-on (by Google)
This is great for instantly blocking your own visits to sites from appearing in your sites traffic. Note though, there is a bug that means that some Angular Web apps will completely fail to load with this extension installed. Note: also available for all other major browsers at: https://tools.google.com/dlpage/gaoptout
Image Size Info
Right-click on an image to get the file size info. It also displays the original and displayed dimensions.
Google’s performance, best practises plugin is now built directly in to Chrome, but the extension on the store is a slightly newer version (2.6.0 at time of writing) with a few more audits. The team are continually working on improving this with SEO audits expected in a future release.
Scan the current page for broken links.
Pesticide for Chrome
I use this everyday. Super helpful for working out CSS issues.
Packed full of useful tools, many of which are unavailable in Chromes devtools.