For folks looking for something like this in an app store, I think I found TextSniper here on HN last August, and it's also in the great alt app store "SetApp"

For folks looking for something like this in an app store, I think I found TextSniper here on HN last August, and it's also in the great alt app store "SetApp" collection: “TextSniper is an easy-to-use desktop Mac OCR app that can extract and recognize any non-searchable and non-editable text on your Mac's screen. As an extra feature, it can turn OCR text into speech. It is a super convenient alternative to complicated optical character recognition tools.” https://apps.apple.com/us/app/textsniper-ocr-simplified/id1528890965?mt=12 https://apps.apple.com/us/app/textsniper-ocr-simplified/id15... “Meet lightning-fast text recognition on Mac. TextSniper is an app that can extract text from a selected portion of your screen. Forget taking notes — get TextSniper to capture and save what’s important.” https://setapp.com/apps/textsniper https://setapp.com/apps/textsniper Consolidating into this note, OwlOCR is mentioned elsewhere in this post: “Capture any text on your Mac's screen. Digitize images and PDFs to searchable PDFs using OCR right on your Mac.” https://owlocr.com https://owlocr.com “OwlOCR allows grabbing a part of the screen and having any text in that area be instantaneously recognized and copied to clipboard. Additionally, the application supports recognizing text from PDF files, images and converting the contents to plain text. All conversion is done securely on-device - none of your images or files are sent to third-party services in the cloud.” https://apps.apple.com/us/app/id1499181666 https://apps.apple.com/us/app/id1499181666 // Both process on device, OwlOCR mentions Apple's algo. Users of both in this thread are happy.