Privacy Policy
Last updated 6 August 2026
This page explains what happens to your data. It is written to be read, not to be survived.
Images you upload
Your thumbnail is sent to Anthropic's API which analyzes it and produce the rating. We do not store your images. They are held in memory only long enough to make that request, and are not written to any database or file storage of ours. Anthropic's own handling of data sent to their API is covered by their privacy policy at anthropic.com/legal/privacy.
The title and description you type are sent along with the image for the same purpose, and are likewise not stored.
Your IP address
To count free ratings without making you create an account, we need to recognise returning visitors. We do this by combining your IP address with a secret value and running it through a one-way hash. The result is a string of characters that cannot be turned back into your IP address — not by us, not by anyone. Only that hash is stored, alongside a number, and it is deleted automatically after 30 days.
We never store raw IP addresses.
Purchases
Payments are processed by Lemon Squeezy as merchant of record. They collect your email address, payment details and billing country. We never see your card details. We receive your email address as the buyer, and we store your license key together with the number of credits remaining on it.
Stored in your browser
Two things are saved in your browser's local storage: your light or dark mode preference, and your license key if you have one. These stay on your device and are not tracking cookies. Clearing your browser data removes them — keep the key email if you might need it again.
Who processes data for us
- Anthropic — analyses the thumbnail to generate the rating
- Vercel — hosts the website
- Upstash — stores hashed visitor identifiers and credit balances
- Lemon Squeezy — takes payments and issues licence keys
Some of these process data outside the EU, in the United States. Where that happens it is covered by the safeguards in their respective agreements, such as the EU Standard Contractual Clauses.
Why we are allowed to do this
- Processing your image and text to produce a rating: performing the service you asked for.
- Hashing your IP to count free use, and preventing abuse: our legitimate interest in keeping a free tier available without it being drained.
- Keeping purchase records: our legal obligation to retain accounting records.
How long we keep things
- Images and text: not kept at all.
- Hashed visitor identifier: 30 days.
- Licence key and credit balance: until the credits are spent or you ask us to delete them.
- Purchase records: as long as accounting law requires, held by Lemon Squeezy.
Your rights
Under the GDPR you can ask for a copy of your data, ask us to correct or delete it, object to processing, or ask for it in a portable format. Email contact@ratethumbnails.com and we will respond within 30 days.
Children
This service is not intended for anyone under 13, and we do not knowingly collect data from children.
Changes
If this policy changes, the date at the top will change with it.
Sweden
Questions: contact@ratethumbnails.com