About RBXUtils

RBXUtils started as a single Robux tax calculator and grew into a toolbox for Roblox players, traders and creators. Some tools do math on numbers you type. Others look up public data from Roblox, such as a player's join date, a limited item's price history or a game's live player count.

How it works

Calculators run in your browser. Lookup tools send the username, ID or link you typed to our server, which asks Roblox for the public data and passes it back. We do not ask for your Roblox login and we do not keep a record of what you search.

Where the numbers come from

Rates such as the 30% marketplace fee and the DevEx exchange rate come from Roblox's own published pages, and each calculator shows when they were last checked. Lookup results come straight from Roblox and are cached for a few minutes.

What we will never do

• Offer free Robux generators
• Ask for your password or security cookie
• Claim to be Roblox

RBXUtils is an independent project and is not affiliated with Roblox Corporation.