Creating User Interfaces With Scripts

A user interface is what turns a pile of features into something usable — the menu, buttons and toggles a player actually clicks. Roblox builds UIs from GUI objects, and scripts make them interactive. This is exactly how a mod menu's interface is made.

The GUI building blocks

Roblox UI is a tree of objects under a ScreenGui: Frame for panels, TextButton and TextLabel for buttons and text, TextBox for input. You can create them in Studio or spawn them from a script with Instance.new.

UI is client-side, so it lives in a LocalScript — see getting started with Lua scripting for the server/client split.

Making it interactive

A button does nothing until you connect its click event: button.MouseButton1Click:Connect(function() ... end). Inside that function you toggle a feature, change a value, or update a label. This is the bridge between working with Roblox events and your UI.

A typical toggle flips a boolean and updates the button's text/colour so the player can see the state.

Layout and polish

Use UIListLayout and UIGridLayout to arrange elements automatically instead of positioning each by hand, and anchor points plus scale-based sizing so your UI looks right on different screen sizes — which matters a lot for mobile.

Smooth show/hide animations via TweenService make a menu feel finished rather than thrown together.

Where to go next

UIs lean on creating custom functions for behaviour and utilizing APIs and libraries for services like TweenService and UserInputService. Keep growing menus maintainable with script structure and best practices.