Toys R Us has launched a new website in the UK, just weeks before Christmas.
The e-commerce platform is currently selling around 14,000 toys from over 100 suppliers.
It offers free delivery on all orders over £20 and next-day delivery on all orders placed before 6pm.
The website says: "We're back! We can't wait to develop and grow with you and your loved ones, over the coming weeks, months and years!"
A video shows children smiling as they play together, with the caption: "We're getting ready to create magical memories with you..."
Categories of toys sold on the website include LEGO and construction, dolls, vehicles and remote control, teddy bears, puzzles, arts and crafts.
Toys R Us is making a comeback after four years away but there are currently no plans to open any brick-and-mortar stores.
Chief executive and managing director, Louis Mittoni, said: "Toys R Us and Babies R Us are much-loved brands in the UK, and our teams have described this as 'returning home', not just a relaunch."
Toys 'R' Us launched in the UK in 1985, when it emerged as the 'world's first toy supermarket'.
However, in 2017 the US parent company filed for bankruptcy after debts reached more than £3.5billion.
A year later, the iconic toy chain collapsed, closing all of its 100 UK branches and triggering thousands of redundancies.
Last year, owner WHP Global signed an agreement with Toys 'R' Us Australia to lead the brand's revival in the UK.
WHP Global had previously acquired a controlling interest in Tru Kids, the parent company of the Toys 'R' Us and Babies 'R' Us brands.
Yehuda Shmidman, the chairman of WHP Global and Toys 'R' Us, previously said: "Toys 'R' Us today is a vibrant business with over 900 stores and e-commerce sites across 25-plus countries generating over US$2 billion a year in sales and growing, especially with the new launches underway for both the US and UK markets."