OCR tool handwritten image to text

Hello my mother gets much handwritten documents and she wants to put that into text. Is there a way to get this workin? Preferably free, but if it’s not much of a cost, she can ask her IT apartment to get something like a plugin OCR for ChatGPT. Can you recommend something? The handwritten documents are horrible to read I tried whisper to record it while reading it out loud but there must be better methods.

Thanks a lot.