These codes are free and are usually allotted in the form of coupon codes send either by Roblox Email or from their Twitch account for roblox users.
However, Roblox regularly conducts Events and Giveaways for these codes on their live streams or from online game events as it is the part of their promotional strategies.
We have managed to find and create all roblox promo codes list including actually visible codes being issued by roblox on specific events from the year 2014, 2015, 2016, 2017, 2018, and present.
This list contains codes for hats, hair, clothes and all other cool and rare items to obtain.
We have arranged these codes as per their current status. Means first you will see codes that are not expired and still redeemable, then all the archived codes shared in the past by roblox that might work for you in any special case.