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Table of Contents
What is ox_lib?Core FeaturesUI ComponentsShared ModulesClient UtilitiesServer UtilitiesInstallationHow Scripts Use ox_libox_lib and the OX Ecosystem

ox_lib Complete Guide: The Essential FiveM Utility Library

Publicado em 24 de fevereiro de 2026·por Lars Miller(Founder & Lead Editor)·Credenciais·3 min de leitura
Tutorials & Guidesox_lib the 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.

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ox_lib Complete Guide: The Essential FiveM Utility Library
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. Whether you're running ESX, QBCore, or QBOX, understanding ox_lib is essential for server development in 2026.

What is ox_lib?

FiveM Roleplay Server Guide and Scripts

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.

Perguntas Frequentes

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.

Table of Contents

What is ox_lib?Core FeaturesUI ComponentsShared ModulesClient UtilitiesServer UtilitiesInstallationHow Scripts Use ox_libox_lib and the OX Ecosystem

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Shared Modules

Modules that both client and server scripts can import:

  • Locale: Internationalization support for multi-language servers
  • Logger: Structured logging with configurable levels
  • Table utilities: Deep copy, merge, contains, and other table operations
  • Math utilities: Rounding, clamping, scaling, and group math functions
  • String utilities: Formatting, trimming, and pattern matching helpers

Client Utilities

  • Zones: Poly and sphere zone creation for triggering events when players enter/exit areas
  • Points: Efficient distance-based point detection (lighter than zones for simple checks)
  • Raycast: Camera-based raycasting for targeting entities and surfaces
  • Streaming: Request and load models, animations, and particle effects with automatic cleanup
  • Vehicle properties: Get/set complete vehicle state (mods, colors, damage, extras)

Server Utilities

  • Version checker: Automatic update notifications for resource developers
  • Callbacks: Client-server callback system (similar to ESX/QBCore callbacks but cleaner)
  • Access control: ACE-based permission checks

Installation

ox_lib is straightforward to install:

  1. Download the latest release from the GitHub repository
  2. Place it in your resources folder
  3. Add ensure ox_lib to your server.cfg before any resource that depends on it
  4. Run refresh and ensure ox_lib in the server console

Important: ox_lib must start before any resource that uses it. Place the ensure line near the top of your server.cfg, right after your framework.

How Scripts Use ox_lib

When a script says it requires ox_lib, it means the script uses ox_lib's functions instead of implementing its own. For example:

  • A job script might use ox_lib's progress bar for work actions
  • A police script might use ox_lib's input dialogs for writing reports
  • A drug script might use ox_lib's skill checks for processing
  • A inventory system might use ox_lib's context menus for item actions

This is why ox_lib has become standard: it eliminates duplicated effort and gives players a consistent interface.

ox_lib and the OX Ecosystem

| ox_lib is the foundation of a larger ecosystem of resources from the Overextended team: | Resource | |

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