What leaves this page
Image data is never posted anywhere: decode, mask, remap and encode all happen inside this tab's memory, and that memory is released when you leave.
The short version
A picture you open is read by the browser you are reading this in. It becomes a bitmap in this tab’s memory, the remapper works on that bitmap, and the file you save is written from it. No copy of it is sent anywhere, because there is nowhere to send one: this is a set of static files with no server behind it, no application programming interface and no storage. The site is built with a check that fails the release if any code path in the image engine could put image data onto the network.
What happens to a file you open
The browser decodes it. For HEIC, which browsers other than Safari cannot decode natively, a WebAssembly codec of about a megabyte and a half is fetched from this site’s own origin the first time such a file arrives — the codec travels to you, not the picture away from you. Orientation is read out of the first 128 kilobytes of the file so that a photograph taken sideways is stood upright before anything is measured.
The bitmap is then converted into a colour buffer and held while the tab is open. Closing the tab or opening a different picture releases it. Nothing is written to local storage, to a database in the browser, or to a cookie; the site sets no cookie of its own at all. The file on your device is never modified: an export produces a new file through the browser’s ordinary download mechanism, with a name derived from the one you opened.
Capture metadata does not survive an export. The output carries pixels and their dimensions. Camera model, lens, timestamp and any location tag are dropped, which is a consequence of writing a new file from a canvas rather than a feature, but it is the behaviour you should expect and count on.
Measurement, and the advertising that is not here yet
Nothing is measured. No counting script is served with any page on this domain: the analytics property was never created, the token in the source is still a placeholder, and the layout renders the beacon only when a real one replaces it. So no visit is recorded, no visit is attributed, and there is no figure anywhere to hand over or to sell. If that ever changes the service will be Cloudflare Web Analytics, which needs no cookie and would see a path, a coarse region and a class of browser against this domain alone — and this paragraph gets rewritten in the same change that ships the script, not afterwards.
This site is built to be funded by Google AdSense, which is a third-party ad server: Google sets and reads its own cookies and identifiers on the pages it serves into, applies its own policies to them, and offers its ads settings page for reviewing or changing what it does. No advertising is on the page yet. The domain has not been through AdSense review, the master switch in the source reads false, and each placement therefore renders nothing at all — no frame, no label, no reserved gap. Once the domain is approved that switch flips and the placements appear where they were decided: beneath the prose on a tool route, at the section breaks of a written page, never above the picture and never inside the rail. A unit is a third-party frame sitting on the same page as the tool, with no access to the canvas, the file handle or anything the remapper holds — before approval or after it.
Requests and errors
Fonts, stylesheets, scripts and the HEIC codec are all served from this origin, and as the site currently stands that is the whole list: every request a page makes goes to recolorimage.com and to nowhere else. Google’s ad script would become the one exception, on the day the advertising described above is switched on. There is no error-reporting service either — a failure in the tool is described to you in the interface and transmitted nowhere. If you would sooner check that than take it on trust, the network panel of your browser’s developer tools lists every request made while you recolour a picture.
Children, and getting in touch
The site is a general-purpose utility and is not directed at children. It asks for no account, no email address and no personal detail of any kind, so there is nothing here to request a copy of or to have deleted. Questions about this page can be sent to the address published on PictureEditor.com, the parent site credited in the footer.
This page was last revised on 11 September 2026.