The website - www.offlicencenews.co.uk - will feature regular news updates, as well as all the content from the current issue and an archive which dates back to the 1990s.
Group editor Graham Holter said: "We know our readers are busy people and so we've designed the site with simplicity in mind. The whole point is to get fast and free access to all the stories that are breaking in the world of drinks retailing, without complication or clutter.
"We're particularly pleased to see the editorial archive - previously only available to OLN journalists - opened up to the wider world. It's a fantastic resource which we're proud to share with our readership."
The site has been in development for several months and will continue to develop organically, Holter said.
"We will be working hard to ensure this is the most useful site for anyone involved in the take-home drinks trade, and we will be responding to the feedback we get from visitors as we update and improve the content of the site," he added. "The site also offers new options for advertisers."
OLN has been serving the off-trade for more than a century and is the only fortnightly newspaper focused solely on the take-home drinks market.