Question 1

How does Rack Sabbath scan a Scrabble board?

Accepted Answer

Rack Sabbath uses computer vision (OpenCV) to detect the board in your photo, straighten it with perspective correction, and then uses AI-powered OCR to read each tile letter. The entire process runs in your browser — no images are uploaded to a server.

Question 2

Is Rack Sabbath free to use?

Accepted Answer

Yes, Rack Sabbath is completely free. No account, download, or subscription required. Just open the website and scan your board.

Question 3

What Scrabble dictionary does Rack Sabbath use?

Accepted Answer

Rack Sabbath uses the TWL06 (Tournament Word List) dictionary, which is the official dictionary for North American Scrabble tournaments. It contains over 178,000 valid words.

Question 4

Does Rack Sabbath work with Scrabble Go?

Accepted Answer

Yes! You can screenshot your Scrabble Go board and upload the image to Rack Sabbath. The scanner will detect the board and read the tiles, then find the highest-scoring move you can play.