If you're setting up a FiveM roleplay server, one of the first real decisions you'll make is which framework to build on. For most servers, that choice comes down to two names: QBCore and ESX. Both are free, both are widely used, and both have thousands of compatible scripts. But they're built with different philosophies, and the right pick depends on what kind of server you're running.
This guide breaks down the honest differences — no marketing, no "just use the one we prefer." By the end you'll know which fits your server.
What a framework actually does
Before comparing them, it helps to understand what a framework *is*. A FiveM framework is the foundation layer that handles the core systems every roleplay server needs: player data, jobs, money, inventory, and the plumbing that lets scripts talk to each other. Without one, every script you install would have to reinvent all of that from scratch.
Both QBCore and ESX give you that foundation. The difference is in how they're structured, how actively they're maintained, and what the surrounding ecosystem looks like.
ESX: the established veteran
ESX has been around longer, and that shows in the sheer size of its script library. If you search for almost any feature — a job, a minigame, a robbery system — there's a good chance an ESX version exists, often several.
Where ESX is strong:
- Maturity and stability. It's been battle-tested on huge servers for years.
- The largest script library. More free and paid resources target ESX than anything else.
- Lighter core. The base framework is relatively lean, which some server owners prefer as a starting point.
- Familiarity. Many experienced FiveM developers cut their teeth on ESX, so finding help is easy.
Where ESX shows its age:
- Its older structure can feel dated compared to newer frameworks, and some legacy scripts use inefficient patterns.
- You'll often assemble more of the "roleplay experience" yourself from separate resources.
QBCore: the feature-rich modern option
QBCore came later and was built with a more complete out-of-the-box roleplay experience in mind. It bundles more systems by default and has seen very active development in recent years.
Where QBCore is strong:
- More included out of the box. Jobs, metadata, and player systems are richer by default, so a fresh QBCore server feels closer to "a roleplay server" with less assembly.
- Active, modern development. The framework and its community resources have been evolving quickly.
- Cleaner metadata system. Player metadata (things like stress, hunger, licenses) is handled in a way many developers find easier to build on.
- Strong community momentum. A large share of newer scripts and tutorials target QBCore first.
Where QBCore asks more of you:
- Because it includes more by default, the core is heavier than a bare ESX install — something to keep in mind if you're chasing every last millisecond of performance.
- The faster pace of development means occasional breaking changes between versions.
Performance: is one actually faster?
This is the question server owners care about most, and the honest answer is: the framework itself is rarely your performance problem — your scripts are. A well-optimized QBCore server and a well-optimized ESX server will both run smoothly. A server bogged down with poorly written resources will lag regardless of which framework sits underneath.
What matters far more than QBCore vs ESX is whether the individual scripts you install are efficient. A single badly written resource running a loop every frame will hurt you more than any framework overhead. If performance is your concern, learn to read resmon and audit your resources — that's where the real wins are.
Which should you choose?
Here's the practical breakdown:
Choose ESX if:
- You want the widest possible library of existing scripts to pick from.
- You value a longer track record and a leaner starting core.
- Your team already knows ESX well.
Choose QBCore if:
- You're building a newer server and want more roleplay systems included from the start.
- You want to ride the current wave of active development and newer scripts.
- You prefer its cleaner metadata approach for building custom features.
For a brand-new server owner without an existing team or codebase, QBCore's more complete out-of-the-box experience and momentum make it a comfortable starting point — you'll spend less time bolting core systems together. But ESX remains a completely valid, powerful choice, especially if the specific scripts you want are ESX-first.
You don't have to pick blind
The good news: you're not locked out of quality scripts either way. At Viper Development, every script we build ships with dual framework support — the same resource automatically detects whether your server runs QBCore or ESX Legacy and adapts. That means your framework choice doesn't limit which of our resources you can use.
Whichever way you go, the smartest move is to keep your resource list lean and only install well-optimized scripts. That decision affects your players' experience far more than the QBCore vs ESX debate ever will.
Ready to build? Browse our FiveM scripts — all dual-framework, escrow-protected, and delivered instantly.