Extract underlined text from a book

Free online extraction of hand-underlined text from photo

What can I do with it?

Upload a photo of a page where some text-lines are underlined and the tool will extract those lines in a text format, which you can then copy-paste and digitise.

Get Started

Upload file (.png or .jpg)

Detected underlined text:


Based on a custom made image processing algorithm for detecting and separating out the underlined parts, in combination with Google Cloud Vision API for performing OCR. Multiple languages supported. The measured correctness for English is around 99.4% (according to my measures on simulated scenarios).

Online storage

Save your notes with your sign-in account, organize and categorize them by your preference, and access them from anywhere at any time.

Whole-scale converter

Get your document converted into a mark-down format, with the underlined text displayed with a proper style so you can easily recognize it differs from the rest.