ox_lib Complete Guide: The Essential FiveM Utility Library
ox_lib is the most important utility library in the FiveM ecosystem. It provides the foundation that modern scripts, frameworks, and UI systems are built on.

ox_lib is the most important utility library in the FiveM ecosystem. It provides the foundation that modern scripts, frameworks, and UI systems are built on. Whether you're running ESX, QBCore, or QBOX, understanding ox_lib is essential for server development in 2026.
What is ox_lib?

ox_lib is an open-source utility library developed by the Overextended team. It provides shared functions, UI components, and developer tools that other resources depend on. Think of it as the standard library for FiveM development.
It's not a framework itself -- it works alongside your framework () to provide common functionality that would otherwise need to be reimplemented in every script.
Core Features
UI Components
ox_lib includes a complete set of UI elements that scripts can use without bundling their own interfaces:
- Context menus: Configurable menus with icons, descriptions, and nested submenus
- Notifications: Toast-style notifications with types (success, error, warning, info)
- Progress bars: Linear and circular progress indicators with cancellation support
- Input dialogs: Forms with text fields, checkboxes, selects, color pickers, date pickers
- Text UI: Simple key-prompt displays for interaction hints
- Skill checks: Timing-based minigames for actions like lockpicking or hacking
- Radial menu: Circular menu for quick-access actions
These UI components give servers a consistent look and feel across all scripts that use ox_lib, instead of every resource having its own mismatched UI.
Häufig gestellte Fragen
Is ox lib required for my server?
Technically no, but practically yes. Most modern scripts depend on it. Not using ox lib severely limits which resources you can install.
Does ox lib affect server performance?
Minimally. ox lib is one of the lightest utility libraries available. Its resource footprint is typically under 0.01ms idle. The UI components only consume resources when actively displayed.
Can I use ox lib with ESX?
Yes. ox lib is framework-agnostic. It works with ESX, QBCore, QBOX, and standalone servers. This is one of its key strengths.











