These are all the active working Roblox promo codes as of April 2021:

 

Arctic Ninja Cat Hat – RIHAPPYCAT2021

Spider Cola – SPIDERCOLA

The Bird Says – TWEETROBLOX

Crystalline Companion (Island of Move) – WorldAlive

Kinetic Staff (Island of Move) – DIY

Build it Backpack (Island of Move) – SettingTheStage

Hustle Hat (Island of Move) – StrikeAPose

Cardio Cans (Island of Move) – VictoryLap
Speedy Shades (Island of Move) – GetMoving