About
Last updated: July 14, 2026
Scope
Chess Tools is a static set of local utilities. Games and repertoires remain in the browser. Stockfish loads only on request.
Local processing
The browser performs parsing, engine analysis, exports and local storage operations. Clearing browser data may remove saved items.
Third-party services
Public pages include Google AdSense. The chess engine and libraries are served from this domain.
Data removal
Use the local library controls or browser site-data settings.