The publisher has teamed up with UK-based web browse and search company Pixsta to provide a shopping service on the site.
Users can click on images of clothes to view complementary and alternative choices, or to link to an online retailer to buy the item.
The "browse and buy" section is designed to be an integral part of www.elleuk.com, which goes live on 1 February. Elle launched in the UK 21 years ago and although its US edition has an established site, www.elle.com, the British edition has not had a dedicated site to date.
The web launch is Hachette's first since the recent appointment of Dave Killeen as digital director.
The UK site will carry entirely exclusive content, including "wear it your way", a section in which users can create their own looks using the latest seasonal items. Content will be updated throughout the day with a shopping and celebrity gossip focus.
It will also feature recommended hotels and bars, guides to the latest people, places, names and trends and a streaming soundtrack of current music.
Video content will include live streaming of the Elle Style Awards, which take place on 12 February, including the after-show party and behind-the-scenes footage.
Julie Harris, general manager of Hachette Filipacchi UK's women's group, said: "Elleuk.com will satisfy every reader's 'want it now' desire for instant gratification and information, fuelling the shopping adrenalin rush, and allow them to be part of the Elle world."
The sales will be headed up by ad sales director Nick Bradley, with view-to-offer integrated packages across the magazine and website.
Elle posted an ABC of 208,802 in the January to June 2006 ABCs and increased its sales by 2.6% year on year.
Online, Hachette aims to reach a similar audience of style-conscious 18 to 34- year-old women.
The launch coincides with the second edition of bi-annual catwalk fashion spin-off, Elle Collections.