Terms of Use

Last updated: 13 September 2026

By using StackTools you agree to these terms; if you don't, don't use it. StackTools is a set of free developer utilities. Some run in your browser; a few run on our server and contact third parties (public certificate logs, or a URL you supply). Everything is provided "as is", may change or disappear at any time, and may be wrong — don't rely on the output for security, legal or safety-critical decisions without verifying it yourself.

Use the Site lawfully and follow our Acceptable Use Policy. We may rate-limit, block or refuse service to anyone at any time.

No warranty and limited liability. To the maximum extent the law allows, we give no warranty and accept no liability for any damages, lost data or profits, or claims arising from your use of the Site — including what you do with the output and how third parties react to requests you send through it. You agree to indemnify us against claims arising from your use or your breach of these terms.

Some tools query third-party services; we're not responsible for their availability, accuracy or terms. Donations are voluntary, non-refundable, and buy no service, support or uptime commitment.

We may update these terms; continued use means you accept the updated version.