confusedrari ~/projects %open centeringlab
centeringlab.com
LIVEKnow your centering before grading.
- Front and back centering ratios, like 55/45 left/right and top/bottom, plus the grade ceiling for PSA, BGS, CGC and SGC.
- Confirm the proposed card outline and printed borders in two steps before seeing grades
- Guided phone capture with a crosshair and level
- Photos analyzed in a browser Web Worker, never uploaded to the server
- Centering guides for Pokémon, Magic, One Piece and Yu-Gi-Oh! · EN, IT, ES, DE, FR
- REST API and public MCP server for developers and AI agents