Free Roblox gift card codes are codes that can be redeemed for Robux, the premium currency in Roblox. There are a few ways to get free Roblox gift card codes, but they are all relatively difficult. One way to get free Roblox gift card codes is to complete surveys or offers for third-party websites. These websites will usually give you points for completing surveys or offers, which you can then redeem for Roblox gift card codes. However, it is important to note that these websites are not affiliated with Roblox, and they may not be legitimate.