Last updated: 8 July 2026
The short version: Looking up terms is anonymous. If you sign in, we store your email and the terms you save so your saved terms follow you across devices — nothing more. We don't sell your data, show ads, or track you, and the browser extension reads pages only on your own device.
Just browsing. You can search and read terms without an account. Nothing about you is stored on our servers when you do this.
If you sign in with Google. To let you save terms that sync across your devices, we receive and store two things: your email address, and the identifiers of the terms you choose to save (for example rag). This information is stored on our behalf by Supabase, our database and authentication provider. We never see or receive your Google password.
We do not sell or rent your data, we run no advertising, and we use no third-party analytics or tracking.
Deleting your data. You can remove any saved term at any time, or sign out to stop syncing. To delete your account and all associated data, email us at the address below and we'll remove it.
Access is opt-in. The extension has no access to any page until you turn it on (a one-time permission you grant from its popup). You can turn it off again at any time.
Page text is read locally, never collected. Once enabled, to underline known terms the extension looks at the visible text of the page you're on, entirely within your browser. Page content is not stored, logged, sent to us, or shared with anyone.
Saving is optional, and uses the same account as this website. If you sign in with Google inside the extension, the terms you save are stored in your account (through Supabase) so they appear in the web app and sync across your devices — exactly as saving on the website does. We store your email address and the identifiers of the terms you save, and nothing more. If you don't sign in, you simply can't save from the extension, and nothing is sent anywhere.
No analytics, no ads, no tracking, no remote code.
No one — other than the infrastructure providers that store it for us (Supabase, for the website's sign-in and saved terms). We do not share data with advertisers or data brokers.
Decoder is a general-audience tool and is not directed at children under 13.
If this policy changes, we'll update the date at the top of this page.
Questions about this policy or your data: sumitd0704@gmail.com