What leaves your machine, and what does not.
Written as a list of mechanisms rather than intentions, so you can check each one against the extension itself.
The image
Goes from your browser to the provider you configured, and nowhere else. There is no Unprompter account, no upload endpoint and no processing queue on our side. If you point the extension at Ollama on your own machine, the image does not leave it at all.
EXIF, including where a photo was taken
Every image is redrawn through a canvas and re-encoded before it is sent. That process cannot carry EXIF forward, so camera body, lens, timestamps and GPS coordinates are gone before the request is built. This is not a setting you can leave off by accident — it is how the resize works.
Access to the sites you visit
Unprompter does not ask for permission to read every site. When an image needs downloading it asks for that one origin, at that moment, and you can say no — in which case it cuts the picture out of a screenshot of the tab instead and carries on. Screen regions and dropped files need no site access whatever.
Your history
Analyses, prompts, thumbnails and tags live in this browser's local extension storage. They are not synced to another machine, not backed up by us, and not readable by us. Clear all in the panel deletes them; removing the extension deletes them too.
Your API key
Stored in the same local storage and sent only to the provider it belongs to, in that provider's own authentication header. It is never sent to unprompter.dev, and the build refuses to ship if anything key-shaped appears in the packaged code.
Your licence key
This is the one thing that talks to us. Activating Pro sends the key and a random device id to unprompter.dev to claim one of your three browser seats. The device id is generated by the extension, is not derived from anything about you or your machine, and can be released from the manage page at any time. The call is logged with a timestamp and IP for abuse control — that is how a leaked key is spotted — and carries nothing about what you have been reading.
What we do not do
- No analytics, telemetry or crash reporting in the extension.
- No account, no email address required to use the free tier.
- No copy of your images, prompts or history on any server of ours.
- No third-party scripts on this website. No cookie banner, because there are no cookies to consent to.
What your provider does
Is between you and them, and worth reading. OpenAI, Anthropic and Google each publish their own retention and training policies for API traffic, and those policies — not ours — govern the image once it arrives. If that is the part you are uneasy about, run a local model and the question disappears.
Getting in touch
Questions about any of this, or a data request: hello@ulogon.com. Unprompter is published by Valley PC Ltd, a company registered in Wales.