Product School might be a bit more popular than PixelStick. We know about 2 links to it since March 2021 and only 2 links to PixelStick. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Pixelstick (https://plumamazing.com/product/pixelstick) - measure pixels on screen and identify colour codes. Source: over 2 years ago
Pixelstick does exactly this. I used it for years as a designer, but had to leave it after one of the MacOS updates caused issues when using retina and non-retina screens together. I assume it's overcome these issues by now, though, and there is a demo download on the developer's Web site if you want to give it a whirl before shelling out the big bucks ($6.99 and well worth it) for it. Source: about 3 years ago
With that being said, there are also great platforms, blogs, people and sources to learn about PM online. I’d also recommend Mind The Product (https://www.mindtheproduct.com) and Product School (https://productschool.com). Source: about 1 year ago
Also, the product school does them https://productschool.com/. Source: about 1 year ago
Meazure - What are the dimensions of that image? How big is this window?
The Product Management guide - A book on how to create and ship products that people love
Bluegrams Screen Ruler - A lightweight and configurable ruler tool for Windows Desktop.
Intercom - Intercom is a customer relationship management and messaging tool for web businesses. Build relationships with users to create loyal customers.
On-Screen Ruler - lightweight, free, semi-transparent ruler
MentorCruise - Personalized mentorship experiences