Cookie Policy
The cookies Black to Colour uses to keep you signed in and to remember your language
What this covers
Black to Colour (黑白转彩色) uses a small number of cookies so the site can sign you in and remember English or 中文. This page lists those cookies.
We do not use advertising cookies or social-media cookies.
Sign-in cookies
These cookies are required for an account. Colorizing a photo needs a signed-in session, so blocking them means the colorize tool cannot tell who you are.
- The session cookie keeps you signed in. It lasts about 7 days, and it is refreshed while you keep using the site.
- A short-lived session cache cookie avoids asking the database to confirm the session on every request. It lasts about 1 hour.
Signing out or deleting the account ends the session those cookies represent.
Language
A language cookie remembers whether you chose English or 中文. The address also carries the language (/zh for 中文). If you block this cookie, the site can still follow the language in the address.
What we do not set
The site does not set cookies for ads, retargeting, or social sharing. Measurement tools such as Google Analytics, Plausible, Umami, and Microsoft Clarity are not enabled. If one of those is turned on later, this page will name it before it starts.
Browser controls
You can delete or block cookies in the browser. Blocking the sign-in cookies will sign you out and stop a colorize job from starting. Blocking the language cookie does not delete your Files or your credits.
Changes
A change to the cookies we set is posted on this page with a new date.
Contact
Questions about cookies: support@blacktocolor.com.