It is important to note that obtaining Xbox gift card codes for free may not always be possible through legitimate means. However, there are some positive ways to potentially earn or receive Xbox gift card codes without spending money:

1. Participate in online surveys: Some websites and apps offer rewards for completing surveys. You can look for legitimate survey sites that offer rewards in the form of gift cards, including Xbox gift cards.
2. Join rewards programs: Some websites and apps have rewards programs where you can earn points or credits by completing tasks like watching videos, playing games, or shopping online. These points can often be redeemed for Xbox gift card codes.
3. Refer friends to services: Some services offer referral programs where you can earn rewards for referring friends. If the referral results in a sign-up or purchase, you may receive Xbox gift card codes as a reward.
4. Participate in gaming communities: Some gaming communities, forums, and social media groups may host giveaways or contests where you can win Xbox gift card codes. Make sure to participate in legitimate and verified events.
5. Look for promotional offers: Keep an eye out for promotional offers from Microsoft or Xbox that may include free Xbox gift card codes as part of a special promotion or event.

It is important to be cautious when trying to obtain Xbox gift card codes for free and to ensure that you are using legitimate and safe methods. Avoid any websites or offers that seem too good to be true, as they may be scams.