The finder, on Tesco's clothes site (www.tesco.com/clothing), which launched in April, allows shoppers to select items from the Cherokee, Florence + Fred and F+F for Men lines.
Shoppers can choose the type of person the gift is for and their price range, and the finder will suggest a range of ideas, accompanied by images.
There is also a store locator.
The service is being promoted by email to Tesco's database and text alerts may follow.
Tesco also plans to integrate its CRM email and text capabilities into one system next year.
The company recently made headlines when it launched 44 separate email-marketing campaigns in a month, equating to 16-20 million emails.
The new finder service was developed by agency WARL evolution, whose project director, Keith Chamarette, said: "The gift finder showcases specific clothing ranges while promoting Clothing at Tesco as a destination when shopping for gifts for the family. Although the site is non-transactional, it gives people a good taste of what is available and shows them their nearest store."
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