Privacy Policy

Chess Analytics & Replay ("we", "our", or "the Service") is a free, client-side tool that lets you view and analyze public chess game data from the Chess.com public API. This page explains what information the Service processes and how it is handled. We do not operate accounts, store personal data on our servers, or share anything with third parties beyond what the tools you use technically require.

When you enter a Chess.com username, the Service requests that player's publicly available profile, statistics, archives and game results directly from the Chess.com public API. All of this data is public chess data that is already visible on Chess.com. We fetch it only to display analytics and do not republish it anywhere or sell it to anyone.

Game parsing, rating calculations, win-rate statistics and move classification run entirely in your browser. We do not have a user account system and we do not store your search history, IP address, or any personal identifier on our servers.

The Service makes use of the Chess.com public API to retrieve chess data and the Stockfish evaluation service to score positions. Google AdSense (see below) may be used to display advertisements. These third parties have their own privacy policies, and we encourage you to review them.

The Service may display advertisements served by Google AdSense. Google uses cookies (or similar technologies) to serve ads based on your prior visits to this and other websites. Cookie Ad Settings allow Google to serve personalized ads. To learn more about Google's privacy practices and how to opt out of personalized advertising, please review Google's Privacy Policy and Google's Advertising Policies.

We do not set functional cookies ourselves. Advertising partners, such as Google, may set cookies to deliver and measure their advertisements. You can manage or disable cookies in your browser settings at any time.

We may update this Privacy Policy from time to time. Any changes will be posted on this page with a revised "last updated" date. Continued use of the Service after changes are posted constitutes acceptance of the revised policy.

If you have any questions about this Privacy Policy, please reach out to us through the Contact page.