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.

Business

Working as a freelance FiveM developer

Run freelance FiveM projects safely: writing a clear scope, estimates and milestones, deposits and payment, who owns the code (licence vs full rights), escrowed delivery, revisions, support periods, confidentiality, access to client servers, and handling disputes.

Updated 11 Sept 202610 min readBy PiTyUs · FiveM developer

Overview

Commission work is where many FiveM developers start — and where most disputes happen. Nearly all of them come from things that were never written down: what exactly is included, who owns the result, what happens if the client changes their mind. A one-page agreement prevents most of it.

The one-page agreement

Section	Write down
Scope	Features, framework, dependencies, UI, what is excluded
Price and schedule	Total, milestones, expected dates
Payment	Deposit amount, when each milestone is paid, method
Delivery	Open source or escrowed; how files are handed over
Ownership	Client gets a licence, or full rights including resale
Revisions	How many rounds; what counts as a change request
Support	Bug-fix period after delivery; paid support after that
Confidentiality	Whether you may show the work in your portfolio

Deposits and milestones

A deposit (often a third to half of the price) protects your time; milestone payments protect the client. Split larger jobs into deliverables the client can test — for example backend, then UI, then polish — and continue when each is approved and paid.

Who owns the code

Licence: the client may use and modify it on their servers; you keep the right to reuse your own generic code.
Full rights: the client owns it and may resell it; charge more.
Escrowed delivery keeps your code protected but limits the client’s edits — agree which files stay editable.

Escrow details: asset escrow.

Server access

Develop on your own test server with a copy of the needed resources. If you need the client’s server, ask for the minimum (a txAdmin account with limited permissions, a separate database user) and return it when done. Never ask for their licence key or Cfx.re login.

When things go wrong

Change requests outside the scope are quoted separately — politely, in writing.
If a client disappears mid-project, the deposit covers the work done.
Keep all agreements and approvals in one written channel.

Frequently asked questions

Should I ask for a deposit on FiveM commissions?

Yes — commonly a third to half up front, with the rest on milestones or delivery.

Who owns a commissioned FiveM script?

Whatever you agree. Decide in writing whether the client gets a usage licence or full rights including resale.

How many revisions should I include?

State a number (for example two rounds) and treat new features as change requests.

Should clients give me their server login?

Only limited access if really needed. Work on your own test server whenever possible.

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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