Privacy & licensing.
This page describes the current early-preview website and extension. It is not a promise about services that have not launched.
This website
This version has no ACStride sign-in, payment form, analytics SDK, or advertising tracker. Your language is reflected in the URL. The hosting provider may process requests and operational logs under its own policies.
The extension
The current local workflow does not require an ACStride account or upload your solutions to an ACStride service. Public requests are sent to Codeforces. The copy-and-open action puts code on your system clipboard; you choose whether to paste and submit it.
External services
Links to GitHub, Codeforces, and other services leave this website. Those services apply their own privacy practices and terms. Website hosting is separate from the local extension.
Licensing
The extension has not selected an open-source license; do not assume permission for commercial reuse. The CF Tool development fork retains its upstream MIT license. This website's original code and content are all rights reserved, except for third-party components under their own licenses.
Questions
For product or privacy questions, open an issue in the extension repository. Do not include passwords, cookies, source code you want to keep private, or other sensitive information in a public issue.