BatchKnow helps you check cosmetic, skincare and perfume batch codes. Choose a brand, then type the code or scan it with the iPhone or Android app. Depending on the brand, see a manufacturing date, an expiry date, or both, with other possible dates for ambiguous codes. Free to use, with no account required.
Appliage turns a serial number into an appliance’s manufacture date. It helps when paperwork is gone, a repair decision depends on age, or a reused year code points to several decades. The result page shows Confirmed, Estimated, or Candidates, explains the code, links its evidence, and flags CPSC recalls. Add the model only when needed to narrow repeating years. Records come from manufacturers, CPSC, DOE, ENERGY STAR, AHRI, California, and NRCan. 79 brands. Free, no signup.
