Roblox promo codes: Roblox periodically releases promo codes that can be redeemed for free Robux. These codes are often shared on social media and community forums. Giveaways: Some Roblox influencers and communities host giveaways where they give away Robux to lucky winners. Keep an eye out for these opportunities. Surveys: Some websites offer free Robux in exchange for completing surveys. However, be cautious of scam websites and only use reputable survey providers.