What is FiveM development and what does a FiveM developer do?

FiveM extends Grand Theft Auto V into a moddable multiplayer framework. A FiveM developer writes Lua for CitizenFX, builds NUI in HTML or React, connects MySQL via oxmysql, integrates ESX or QBCore (or custom frameworks), and optimizes for OneSync population, entity limits, and server tick performance.

Do you work with ESX, QBCore, Qbox, and ox_lib on FiveM servers?

Yes. PiTyUs ships features across ESX Legacy-style economies, QBCore and Qbox stacks, ox_lib notifications and input dialogs, ox_inventory patterns where needed, and fully custom frameworks when design goals go beyond off-the-shelf templates.

Can you build NUI (in-game browsers) for FiveM?

NUI is a core specialty: React, Vue, or Vite-built panels, shops, MDTs, crafting UIs, and admin tools with accessible markup, responsive layouts, and tight Lua↔JS bridges using NUI callbacks and message contracts.

How do you approach FiveM server performance and OneSync?

Profiling-first: reducing redundant events, batching state updates, respecting entity and player bucket rules, tuning population zones, and validating database queries. The goal is stable frame time for clients and predictable server ms under peak concurrent players.

Do you offer website and landing page work for FiveM brands?

Yes. Next.js and modern static sites for server brands, waitlist pages, rules and lore sites, and documentation hubs—SEO-oriented structure, fast Core Web Vitals, and design systems that match in-game identity.

What is CitizenFX scripting and how does it relate to FiveM?

CitizenFX is the runtime behind FiveM. Scripts use Lua with FiveM natives for entities, players, and world state. Resources are packaged with fxmanifest.lua, loaded by the server, and coordinated with client and server contexts.

How much does a custom FiveM script cost?

Pricing is scope-based rather than fixed. A small standalone resource is very different from a multi-job economy, a full NUI inventory, or an ESX-to-QBCore migration. Share the framework, the feature list, and the deadline, and you get a clear estimate with milestones before any work starts—no surprise scope creep.

Can you fix, optimize, or refactor an existing FiveM server?

Yes—server audits and refactors are a core service. That includes OneSync and server-tick profiling, removing redundant events and net traffic, fixing resource conflicts, hardening exploitable handlers, cleaning up oxmysql queries, and upgrading aging ESX or QBCore stacks without breaking live gameplay for your players.

Should I use ESX or QBCore for my GTA V roleplay server?

Both are solid—the right choice depends on your resource library, your team's familiarity, and how much custom work you plan. QBCore and Qbox ship a more modern core and tooling out of the box; ESX Legacy has a huge ecosystem and battle-tested scripts. PiTyUs builds on all of them, and on fully custom frameworks when off-the-shelf templates limit your design.

Can you convert or bridge scripts between ESX, QBCore, and Qbox?

Yes. Framework conversions and bridges are common work: porting jobs, inventories, and economies between ESX and QBCore/Qbox, wiring ox_lib and ox_inventory compatibility layers, and keeping shared exports stable so the rest of your server keeps working during the migration.

Do you build custom FiveM HUDs, phones, and inventory UIs?

NUI is a specialty. Custom HUDs, phone apps, inventories, crafting tablets, police MDTs, and admin panels in React, Vue, or vanilla CEF—responsive, accessible, and tuned for 1080p in-game rendering with tight Lua↔JS callback contracts and optimistic UI where it helps.

How can I contact PiTyUs for a FiveM commission?

Join the PiTyUs Discord at https://discord.gg/64a26MK4jZ, open a support ticket there, or send a direct message to the user pityus on Discord. Describe your scope, framework (ESX, QBCore, or custom), timeline, and whether you need NUI, database work, or full-stack delivery. This site does not list a public email or GitHub for inquiries.

What is CRM Development (crmfivem.dev) and how is PiTyUs involved?

CRM Development is an affiliated FiveM platform at https://crmfivem.dev/ offering server-oriented packages, custom scripts, and ESX/QBCore ecosystem resources, with secure role-based access and a cohesive design system. PiTyUs leads the product UI and front-end engineering; the live site credits PiTyUs in the footer as the design partner.

Frameworks

Writing scripts for Qbox (qbx_core)

Learn Qbox scripting: how qbx_core differs from QBCore, the exports-based API (GetPlayer, AddMoney, SetJob, HasGroup, Notify), multi-job groups, QBX.PlayerData on the client, ox_lib and ox_inventory as the standard stack, and the QBCore compatibility bridge.

Updated 11 Sept 202612 min readBy PiTyUs · FiveM developer

Overview

Qbox started as a fork of QBCore and became its own framework. It keeps QBCore’s data model — citizenid, PlayerData, jobs and gangs — but moves to an exports-based API, builds on ox_lib, ox_inventory and oxmysql, and adds multi-job support. If you know QBCore, Qbox is mostly new function names and cleaner patterns.

Qbox vs QBCore at a glance

Topic	QBCore	Qbox
Core access	`exports['qb-core']:GetCoreObject()`	Direct exports: `exports.qbx_core:GetPlayer()`
Inventory	qb-inventory (or others)	ox_inventory
UI helpers	Own menus and notify	ox_lib
Jobs	One job, one gang	Multiple jobs and gangs, one primary
Old QB scripts	—	Mostly work through the built-in bridge

01Resource setup

fxmanifest.lualua

fx_version 'cerulean'
game 'gta5'
lua54 'yes'

shared_scripts {
    '@ox_lib/init.lua',
    '@qbx_core/modules/lib.lua',
}
client_scripts {
    '@qbx_core/modules/playerdata.lua',
    'client.lua',
}
server_script 'server.lua'

dependencies { 'qbx_core', 'ox_lib', 'ox_inventory' }

modules/lib.lua adds the qbx helper table (string, math and table utilities, plate helpers); modules/playerdata.lua gives the client a live QBX.PlayerData.

Server API

Task	Export
Get a player	`exports.qbx_core:GetPlayer(source)`
By citizen ID	`exports.qbx_core:GetPlayerByCitizenId(cid)`
Money	`AddMoney(source, 'bank', n, reason)`, `RemoveMoney`, `GetMoney`
Jobs	`SetJob(source, 'police', 2)`, `AddPlayerToJob(cid, job, grade)`, `SetJobDuty`
Group checks	`HasGroup(source, 'police')`, `HasPrimaryGroup`, `GetGroups`
Duty count	`GetDutyCountJob('police')`
Notify	`Notify(source, 'Saved', 'success')`
Metadata	`SetMetadata(source, key, value)`, `GetMetadata`

server.lua — fish marketlua

local PRICE = 45
local MARKET = vec3(-1845.0, -1195.0, 14.3)

RegisterNetEvent('fishmarket:sell', function()
    local src = source
    if not exports.qbx_core:GetPlayer(src) then return end
    if #(GetEntityCoords(GetPlayerPed(src)) - MARKET) > 5.0 then return end

    local count = exports.ox_inventory:GetItemCount(src, 'fish')
    if count < 1 then
        return exports.qbx_core:Notify(src, 'You have no fish', 'error')
    end

    if exports.ox_inventory:RemoveItem(src, 'fish', count) then
        exports.qbx_core:AddMoney(src, 'cash', count * PRICE, 'fish-market')
        exports.qbx_core:Notify(src, ('Sold %d fish'):format(count), 'success')
    end
end)

Client side

client.lualua

RegisterCommand('myjob', function()
    local job = QBX.PlayerData.job
    lib.notify({ description = ('%s, grade %d'):format(job.label, job.grade.level) })
end, false)

RegisterNetEvent('QBCore:Client:OnJobUpdate', function(job)
    -- QBX.PlayerData is already updated; react here if needed
end)

Items and usable items

Define items in ox_inventory/data/items.lua. Make them usable through ox_inventory (a server.export or client export on the item) rather than the old QBCore pattern; exports.qbx_core:CreateUseableItem still exists for compatibility. See inventory integration.

Running QBCore scripts on Qbox

qbx_core ships a QBCore bridge, so scripts calling exports['qb-core']:GetCoreObject() usually keep working. New code should use the exports directly — the bridge exists for migration, not as the main API. The QBCore version of this example is in the QBCore tutorial.

Frequently asked questions

What is Qbox?

A FiveM roleplay framework that grew out of QBCore, built on ox_lib, ox_inventory and oxmysql with an exports-based API.

Do QBCore scripts work on Qbox?

Most do, through qbx_core’s built-in QBCore bridge.

How do I get player data on the client in Qbox?

Add '@qbx_core/modules/playerdata.lua' to your client scripts and read QBX.PlayerData.

How do I add money in Qbox?

exports.qbx_core:AddMoney(source, 'cash', amount, reason).

Can a player have two jobs in Qbox?

Yes. Players can belong to several jobs and gangs, with one primary job.

Need this built, not just explained?

Ten years of FiveM work, from Lua to NUI

Custom resources, React NUI, ESX / QBCore / Qbox integration, OneSync performance audits and security reviews — plus the websites and SEO around your server brand.

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