Privacy Notice

Last updated: 20 August 2026

This page explains, in plain terms, what this tool does with data. It is not a substitute for legal advice, if you plan to run this beyond a personal or internal tool, have it reviewed properly before relying on it.

What this tool does

You enter one or more Letterboxd usernames. The server fetches those accounts' public watchlist pages from letterboxd.com, compares them, and shows films they have in common (or, with one username, a random shuffle of that person's own watchlist). It also fetches public film pages to show a poster, genre, rating and runtime.

What we collect

• The usernames you type in. These are sent to our server to look up public Letterboxd data. They are not logged to a file or database.
• Nothing else. We don't ask for your name, email, or account credentials. We don't use analytics or ad trackers.

What we don't do

• We don't create accounts, and there's no login.
• We don't persist any data to disk or a database. Results and any cached lookups (e.g. avatar previews) live only in server memory and are cleared whenever the server restarts.
• We don't set any cookies of our own.
• We don't share, sell, or transmit anything to a third party for marketing or advertising purposes.

About the Letterboxd data itself

A Letterboxd username, and the films on that person's watchlist, can be personal data about an identifiable individual, even though it's published publicly by that person on their own Letterboxd profile. This tool only reads data a user has chosen to make public on Letterboxd, and only for the purpose the person using this tool intends (comparing watchlists to decide what to watch). It does not aggregate, retain, or resell that data. If you are the subject of a Letterboxd profile and have concerns about it being looked up here, note that this tool has no stored record of any lookup once the server restarts, there is nothing to request deletion of.

Third parties

This tool calls letterboxd.com on your behalf to fetch public pages. It is not affiliated with, endorsed by, or officially connected to Letterboxd in any way. No other third-party service currently runs on this site. If that changes (for example, adding translation, analytics, or embedded widgets), this notice will be updated first, and a cookie consent banner will be added if any such service sets cookies.

Your rights

Since no personal data is stored beyond the lifetime of a single request/server session, there is generally nothing on file to access, correct, or delete. If you have questions about how this tool works, reach out to whoever operates the instance you're using.

Changes

This notice may be updated as the tool changes. Check back here for the latest version.