Terms of use

These terms cover the site https://zerostress.space and the ZeroStress browser extension. By using them you agree to these terms.

Last updated: 8 November 2026.

What the service is

ZeroStress opens a link or a file in a disposable sandbox, collects evidence about the page, and gives a verdict with an explanation. It is a free, open-source project, run on a best-effort basis. It may change, slow down or stop at any time.

A verdict is advice, not a guarantee

A page can show one thing to our sandbox and another to you, change after the check, or hide its intent well. "Safe" means only that this check found no sign of a threat. Decide for yourself before you open a link, sign in, pay or download anything, and if you think you were attacked, contact your bank, your provider or your IT team.

Use it fairly

• Check only links and files you received or found, to protect yourself or others. Do not upload a file that holds other people's personal data or anything you are not allowed to share; a file is read only in the sandbox and not kept, but its name and what was found in it appear in the report.
• Do not use ZeroStress to attack, overload or probe any website or service, to get around its limits, or to reach illegal content.
• Do not try to break out of the sandbox or attack the service; if you find a weakness, report it privately to [email protected].

We may refuse a link or a file, limit the number of checks, or block access to protect the service and others.

Reports

A report contains what our sandbox saw on a public web page. Anyone with its link can open it, and it is deleted after 24 hours. What we collect and how is described in the privacy policy.

No warranty, limited liability

The service is provided "as is", without any warranty. As far as the law allows, the people behind ZeroStress are not liable for any loss or damage that comes from using it or relying on its verdicts.

The code

The source code is published under the MIT license: https://github.com/xhero-xandr/zerostress. These terms cover the service at zerostress.space, not your own copy of the code.

Changes and contact

If these terms change, the new version is published here with a new date. Questions: [email protected] or https://github.com/xhero-xandr/zerostress/issues.