Privacy Policy

Last updated: November 9, 2026.

This policy explains what Hermet (“we”, “us”) does with information when you use Hermet at https://hermet.dev. The short version: the tools run in your browser and send nothing, we do not use analytics, and the only server contact anywhere on this site is sign-in and Pro billing.

What stays on your device

• Everything you paste into a tool. It is processed in your browser. We do not upload it, store it, or see it. The tool pages make no network requests at all — each is served with a Content Security Policy of connect-src 'none', so the browser itself forbids them from sending data anywhere.
• Your workspaces and settings. Workspaces you save (Pro), and the choices you make on a tool page, are kept in your browser’s local storage so they are there next time. They never leave this device. You can clear them at any time by clearing site data for hermet.dev.
• Your Pro record. When the Account page confirms your plan, it saves that fact — your plan and the date it was checked — in this browser, so the tool pages can switch Pro features on without making any requests of their own. It stays on this device.

The only server contact

Two pages talk to a server. No tool page does.

• Sign-in and your plan (Supabase). If you create an account on the Account page, we collect your email address so you can sign in with an email link or code. There is no password. Our sign-in provider, Supabase, stores that email and a record of your plan (Free or Pro, its status and renewal date).
• Payments (Paddle). Paid plans are sold by Paddle, which acts as the seller (merchant of record). Paddle collects and processes your card and billing details and tells us your plan status; we never see or store your card number.

We keep your account record while your account exists, and billing records as long as tax law requires.

Information our hosting provider collects

Our site is hosted by Cloudflare. Like most web hosts, it may log technical data such as IP address, browser type and the pages requested, for security and reliability. We do not use analytics on this site.

Cookies

Hermet does not use advertising or tracking cookies, and we do not use analytics. The site keeps only the browser storage it needs to work — your sign-in session on the Account page, your settings, your workspaces and your Pro record — in your browser’s local storage, as described above. You can clear it at any time by clearing site data for hermet.dev.

Sharing

We do not sell your personal information. We share information only with service providers that help us run the site (hosting, sign-in and payments), or when the law requires it.

Your choices and rights

Depending on where you live, you may have rights to access, correct or delete personal information we hold about you. To make a request, contact us at [email protected].

Children

You must be 13 or older to use Hermet. We do not knowingly collect information from children under 13.

Changes

If we change this policy we will update the date above and, for significant changes, tell you on the site.

Contact

Hermet, P.O. Box 5023, Reno, NV 89503, USA. Email: [email protected].