A new mobile phone application - the "alcohol tracker" - will help festive drinkers monitor how much they have consumed, claims the Department of Health.
The user can track the amount they are drinking and consult graphs which show whether or not they are sticking to recommended unit levels - which are three to four a day for a man and two to three for a woman.
The application also helps people work out how many alcoholic units there are in a drink and get personalised feedback on their habits.
Public health minister Gillian Merron, who launched the application, said: "It is all too easy to lose track of how much you drink. So as the festive parties start to build up, this innovative tool will help people keep tabs on their drinking - wherever they are. It's one of many ways the government is helping people to understand how much they are drinking."
Chris Sorek, chief executive of Drinkaware, said: "Trying to stick within the daily unit guidelines will help people avoid the January slump and the long-term health implications associated with drinking too much alcohol."
The alcohol tracker is available from iTunes and www.nhs.uk.
People with a standard mobile can access a units calculator by texting the word UNIT to 64746.