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Privacy Policy

What information we collect, why we collect it, who we share it with, and the rights you have over it.

Effective July 25, 2025Last updated October 21, 2026
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Section 01

Who we are

S3 Viewer is an open-source viewer for S3-compatible object storage. The hosted service is operated by May Inc., which is responsible for the personal information described in this policy. This policy covers that hosted service only; see self-hosting below. Questions about this policy can be sent to info@may.inc with “S3 Viewer” in the subject line.

Section 02

Information we collect

We collect only what is needed to provide the service. In general, that falls into these categories:

  • Account information you provide, such as your email address.
  • Information needed to operate the service, such as the settings and access you configure for yourself and anyone you invite.
  • Credentials you choose to connect, which are encrypted.
  • Technical information necessary to keep the service secure and available.

Object contents may pass through our servers and be processed temporarily for actions you request, such as uploads, editing, archive downloads, and transfers between servers. We do not keep persistent copies of your objects outside your connected storage or inspect their contents independently of those operations.

Section 03

How we use information

We use personal information to provide, maintain and secure the service, to sign you in, to carry out the actions you request, and to send you service-related messages. We do not use your information for advertising, and we do not build profiles about you.

Section 05

How we share information

We share information only with service providers that help us operate the service, when required by law, or with your consent. We do not sell personal information.

Section 06

Your storage provider

The storage you connect remains yours and stays with your storage provider. What that provider collects, logs and retains is governed by its own terms and privacy policy, not by this one.

Section 07

Retention

We retain personal information only as long as necessary to provide the service and as required by applicable law.

Section 08

Cookies

We use strictly necessary cookies to keep you signed in. We do not use advertising or tracking cookies.

Section 09

Your rights

Depending on where you live, you may have rights under applicable law to access, correct, delete, or port your personal information, to object to or restrict certain processing, and to withdraw consent. To exercise them, contact info@may.inc with “S3 Viewer” in the subject line. You can delete your account at any time from the app.

Section 10

Self-hosting

S3 Viewer is open source. A self-hosted instance is operated by whoever runs it, and that operator, not May Inc., is responsible for any personal information it holds and for its own privacy notice. May Inc. receives nothing from a self-hosted instance.

Section 11

Children

The service is not directed to children under 16, and we do not knowingly collect their personal information.

Section 12

Changes to this policy

We may update this policy from time to time. If we do, we will post the updated version on this page and revise the date above.

Section 13

Contact

May Inc. is responsible for the personal information described in this policy. You can reach us at info@may.inc with “S3 Viewer” in the subject line.