Smart Scanner App for Underlined Images

All you need is a good book and a pencil. Keep your key takeaways from books always close to you.

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 save in your digital notes.

Get Started

Upload a file (png or jpg,
max 100 Mb)

Detected underlinings:

Converted page:


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.

Access from anywhere

You do not need to install a software. The online web app works perfectly on all devices and popular browsers.

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.

Languages supported

Currently 56 languages are supported. You can check if your language is supported here.

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.


We are very cautious about security. Everything goes through SSL encryption. Additionally, we destroy all files automatically from our servers.