Screenotate

Screenotate is an app that might help you with your screenshots. Every time you take a screenshot, Screenotate steps in to recognize and save the text inside (using Optical Character Recognition), along with the URL and the title of the place where you took the screenshot (where possible)

And because Screenotate does all this automatically, you don't need to learn anything new to use it! Once you install Screenotate, you can keep taking screenshots the same way you always have - one keyboard shortcut and drag - only now, they'll be tagged with all this extra information, so you can search them later, and know where they're from, and paste their text into other places

Highlights:

"Wait, where did I see that?"

Screenotate records useful metadata, not just text. It saves the title of the window, originating URL, time the screenshot was taken, and more.
Each screenshot is a self-contained HTML file on your computer, which you can open up in your Web browser or share with friends

Never lose a screenshot again

Using Screenotate's menu pane, look at recent screenshots and quickly search your past screenshots. You can even drag images directly from here into a chat with someone!
Click a screenshot to open it up in your browser, or right-click to reveal the screenshot file in Finder.
And because all your screenshots live on your computer, searching and browsing your screenshots with Screenotate is much, much faster than it would ever be in an online service

Recognize text in 100+ languages

Screenotate uses the powerful Tesseract open-source Optical Character Recognition engine, developed by HP Labs and Google. It can recognize text in your screenshots in any of the 100+ languages supported by Tesseract. Just click a button in Screenotate's Preferences window to download support for any language you want

Your computer, not the cloud

Unlike many notetaking, screenshot, and OCR services, Screenotate is a desktop app, not a cloud service. The OCR engine runs on your computer, not in the cloud. Your screenshot data never leaves your computer, unless you put your screenshot files on a service like Dropbox or iCloud yourself.
Plus, as long as you keep the HTML files around, you'll always be able to search and view your screenshots, even without Screenotate

Choose the shortcuts you want

On macOS, Screenotate can automatically replace the Apple screenshot function and use the same shortcuts, Shift-Command-4 and Control-Shift-Command-4, so you don't need to retrain your muscle memory. Or you can customize its shortcuts yourself. You can also set where Screenotate should save screenshots