OpenSlabGrader measures a trading card from an ordinary flatbed scan instead of eyeballing it. Every number is written down with how it was measured, so a grade can be rerun and verified by anyone.
A grade with its measurements attached, not an opinion a customer has to take on trust.
Check a card at home before buying, selling or sending it away.
Open source under Apache 2.0. Read it, run it, improve it.
The first release is being prepared. The code is not yet published. This site and the repository hold the name, the license and this note until it is. English-language cards first; others as the project grows.