Online retail giant Amazon.com Inc. (AMZN - Get Report) got into the competitive spirit Monday by offering free shipping for the holiday season.

The Seattle-based retailer said the free shipping offer was open to all Amazon customers with no minimum purchase amount on orders that will arrive in time for the Christmas holiday. Normally, customers have to spend $25 to get free delivery.

The move comes on the heels of Target Corp.'s (TGT - Get Report) announcement last month that it wasoffering two-day shipping with no minimum purchase for the holiday season.

In addition to free shipping, Amazon said its Prime members will have free same-day delivery and Prime members in more than 60 cities can get deliveries in an hour from Whole Foods Market through Prime Now.

Amazon Prime passed the 100 million subscriber mark in April. However, subscriptions have increased 20% from $99 to $119, and some Prime customers have complained that their packages have arrived late.

Shares of Amazon were down slightly Monday.

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