Privacy

Last updated 3 November 2026

Without signing in

Everything you do is saved only in your own browser: the cards you tick, what you paid, your binders and lists, the daily value of your collection, and your settings. Nothing about you is sent to BinderCheck.

If you sign in with Google

• BinderCheck uses Google only to confirm it's you. It asks for no Google permissions: no Gmail, Drive, contacts or calendar.
• Google tells BinderCheck your account number, email address and name. BinderCheck does not store your email address or name. It stores your account number only as a scrambled code (a keyed hash) that cannot be turned back into your account without a secret held on the server.
• That code is linked to a random key for your collection. Your collection is encrypted with that key in your browser before it is uploaded, so the database holds only encrypted data.
• The key is kept on the server, locked with a separate server secret, so that signing in on a new device can bring your collection back. A copy of the database alone cannot open any collection. BinderCheck does not open, read or analyse collections.
• Google's sign-in button is loaded from Google and is covered by Google's privacy policy.

What is stored on the server

• If you sign in: your encrypted collection (ticks, purchases, binders, lists, value history and settings), its version number and when it last changed; the scrambled account code and your collection's key, itself encrypted with a server secret.
• If you share a binder or list: a copy of it (see below).

Data is stored on Cloudflare (Cloudflare D1). BinderCheck never sells or shares data.

Affiliate links (Impact)

BinderCheck is a TCGplayer affiliate. To credit BinderCheck when someone buys on TCGplayer after following a link here, the site loads a script from Impact (impact.com), the company that runs TCGplayer's affiliate programme. It turns TCGplayer links into affiliate links and counts how often they are shown and clicked. Impact and TCGplayer may set cookies to recognise a purchase that came from BinderCheck. They don't receive your collection or anything you saved here. See Impact's privacy policy.

Visitor counts

BinderCheck uses Cloudflare Web Analytics to count page visits. It uses no cookies, doesn't follow you across websites and doesn't identify you: it shows only totals such as how many people opened a page and which countries they came from.

Community profile

If you make a community profile, these are public and stored as they are (not encrypted), because their purpose is to be seen: the username and display name you choose, your picture (a colour or a card picture), your "about you" text, the country and town or area you enter (never an address, unless you make a shop profile and add your shop's), and, if you leave it on, your collection stats (cards and sets per game, sets completed). Want lists and trade lists you show are compared with other people's in your country to suggest trades. So are the binders you choose to show (only to your followers, or to everyone), who you follow and who follows you, your likes and your comments. Follow requests need your approval. Your email address, your Google account and the rest of your collection are never shown.

To delete it all, open My profile and choose Delete my community profile; deleting your saved collection removes it too. Reports you send about a profile, binder or comment are kept so the BinderCheck team can review them. Notifications (follow requests, likes, comments) are kept for 60 days. "Price drop" alerts are worked out in your browser from your own want lists.

When you make a binder video, it is made in your browser and saved to your device; BinderCheck doesn't keep it. The card pictures for it pass through bindercheck.com so the video can be recorded.

Shared binders and lists

When you choose Share on a binder or list, BinderCheck saves a public copy that anyone with the link can see: its name, cover, page size and its cards (name, set, number, version, picture and price). The copy contains nothing about you and isn't linked to your account. Changes you make to the binder update the copy. Stop sharing deletes it straight away. Shared pages are not listed for search engines.

Price history

Every day, BinderCheck saves the market value of every set. This is public market data and has nothing to do with you. The value of your own cards over time is worked out and saved in your browser, and synced with the rest of your collection if you sign in.

Deleting your data

• To delete your saved collection and the link to your Google account, open My profile and choose Delete my saved collection. Both are removed at once.
• To delete a shared copy, open the binder or list, choose Shared, then Stop sharing.
• The copy in your browser stays until you clear your browser's site data for bindercheck.com.

Other services the site uses

Card data, pictures and prices come from Scryfall (Magic) and from TCGplayer through TCGCSV (Pokémon, Yu-Gi-Oh!, Lorcana, One Piece, Digimon, Gundam, Riftbound); Cardmarket prices come through Scryfall. Pictures are loaded straight from Scryfall's and TCGplayer's servers, which, like any website, see your IP address. Exchange rates come from ExchangeRate-API. Pages are delivered by Cloudflare, which processes your IP address to serve the site. Links to Amazon, TCGplayer and Ko-fi are ordinary links, and some are affiliate links; those sites have their own privacy policies.

Your rights

You can see, export (Excel export is built in) and delete everything BinderCheck holds about you yourself, using the tools above. Because BinderCheck doesn't know your name or email address, it can't look you up. For any question or request, write to feedback@bindercheck.com. If you are in the UK or the EU, you can also complain to your data protection authority.

Changes

If this page changes, the date at the top changes too.

Contact

BinderCheck is an independent fan project. Questions or requests: feedback@bindercheck.com