Livewire vs Inertia in 2026: How to Choose for a Laravel SaaS
By Annu Gupta··12 min read
Livewire vs Inertia is the first real fork in the road on a new Laravel project. Both are first-party options in Laravel's official starter kits, both are mature, and both can carry a serious SaaS. So the honest answer to "which one is better?" is "better for whom?". Below we'll show what each one does on the wire, where each one shines and where it fights you, and a decision table you can take to your team.
We're comparing Livewire 4 with Inertia v3 on Laravel 13 and PHP 8.4. The Inertia side uses Vue 3 in the examples, but everything applies to the React and Svelte adapters too. If you've already decided on Inertia and you're now stuck on the frontend framework, read Vue, React or Svelte for your Laravel SaaS instead. We won't repeat that comparison here.
How Livewire works
With Livewire, you write components in PHP and Blade. The server renders HTML, and when the user does something (clicks a button, submits a form), Livewire sends a request to the server, runs the PHP method, re-renders the component and patches the changed HTML into the page. Alpine.js ships with Livewire for small client-side behaviour, and the $wire object lets Alpine talk to the component.
Livewire 4 makes single-file components the default. php artisan make:livewire post.create creates one file with a PHP class at the top and the Blade template below it. It also adds islands: regions of a component, wrapped in @island, that re-render on their own so one slow widget doesn't force the whole component to refresh.
For page changes, wire:navigate fetches the next page in the background and swaps the body, so moving between pages feels like a single-page app without you building one.
How Inertia works
Inertia keeps your routes and controllers in Laravel, but a controller returns a page component name and its props instead of a Blade view. On the first visit, the server sends a full HTML page with the props embedded. After that, every link click or form submit is an XHR request, the server answers with JSON (component name plus props), and Vue, React or Svelte renders the new page in the browser.
You don't build an API for your own frontend. Validation errors come back as props, redirects are normal Laravel redirects, and shared props (current user, permissions, flash messages) reach every page. Inertia v3 adds things like useHttp for plain JSON requests, optimistic updates and instant visits. We cover those in what's new in Inertia v3.
The big difference in one sentence: Livewire keeps the component state on the server and sends HTML, while Inertia keeps the component state in the browser and sends JSON.
The same form in Livewire and Inertia
Here's a "create project" form in both. First, a Livewire 4 single-file component:
<?php
use App\Models\Project;
use Livewire\Component;
new class extends Component
{
public string $name = '';
public function save()
{
$this->validate(['name' => 'required|string|max:120']);
Project::create(['name' => $this->name]);
return $this->redirect('/projects');
}
};
?>
<form wire:submit="save">
<input type="text" wire:model="name">
@error('name') <p>{{ $message }}</p> @enderror
<button type="submit">Create project</button>
</form>One file, one language, no build step for the logic. By default wire:model doesn't send a request on every keystroke; Livewire syncs the value when an action runs (add .live if you want updates while the user types).
Now the Inertia version. The controller stays a normal Laravel controller:
public function store(StoreProjectRequest $request): RedirectResponse
{
$this->projects->create($request->validated());
return to_route('projects.index');
}And the Vue page uses Inertia's Form component:
<script setup lang="ts">
import { Form } from '@inertiajs/vue3';
</script>
<template>
<Form action="/projects" method="post" v-slot="{ errors, processing }">
<input name="name" />
<p v-if="errors.name">{{ errors.name }}</p>
<button type="submit" :disabled="processing">Create project</button>
</Form>
</template>Two files and two languages, but a clean split: PHP owns the rules and data, the frontend owns the UI. Neither is "more correct".
Blade vs Livewire vs Inertia
People often search for "blade vs livewire vs inertia" as if they were three equal options. They're really steps on a ladder:
| Option | What you get | Good fit |
|---|---|---|
| Plain Blade | Server-rendered pages, full reloads, a sprinkle of Alpine | Marketing pages, docs, simple CRUD back offices |
| Livewire | Blade plus reactive components that call PHP methods | PHP-first teams who want interactive UI without a JS framework |
| Inertia | A Vue, React or Svelte SPA driven by Laravel routes and controllers | Teams comfortable with a JS framework who want its component ecosystem |
You can mix plain Blade with either: a Livewire app is still a Blade app, and an Inertia app can serve Blade views on some routes.
Laravel Livewire vs Inertia.js, point by point
| Livewire 4 | Inertia v3 | |
|---|---|---|
| Where UI state lives | Server, in the PHP component | Browser, in Vue/React/Svelte |
| What goes over the wire | HTML updates after each action | JSON props on each visit |
| Languages you write | PHP, Blade, a little Alpine | PHP plus TypeScript/JavaScript |
| Build step for UI logic | Mostly none | Vite build always |
| Official UI kit in Laravel's starter kits | Flux UI | shadcn/ui, shadcn-vue, shadcn-svelte |
| SSR for first load | Built in (it's server-rendered HTML) | Optional, needs a Node.js SSR process |
| Real-time with Echo | #[On('echo:...')] on component methods | useEcho hooks for Vue, React and Svelte |
| File uploads | WithFileUploads trait, temporary uploads | Automatic FormData with upload progress |
| Testing | Livewire::test() in Pest | assertInertia() for props, plus JS tests if you want them |
Now the parts that matter in practice.
Team skills and hiring
This is usually the deciding factor. If your team is mostly Laravel developers who don't enjoy JavaScript tooling, Livewire lets them ship interactive features without learning a frontend framework and a bundler. That's a real productivity win, not a compromise.
If you already have frontend developers, or plan to hire them, Inertia lets them work in the framework they know. Vue and React developers are easier to find than Livewire specialists, and the frontend of an Inertia app is just Vue, React or Svelte.
Interactivity and latency
Every Livewire action is a round trip to the server. On a good connection you won't notice. On a screen with lots of small interactions (drag and drop, inline editing, live filters), the round trips add up and you'll reach for Alpine to keep things local. That works, but now your UI logic lives in two places.
Inertia apps handle local interactions in the browser with no request at all. A tab, a client-side filter or a multi-step wizard doesn't touch the server until you save. For a heavy, app-like UI (editors, canvases, builders), we'd lean towards Inertia.
Component ecosystems: Flux vs shadcn
Laravel's Livewire starter kit uses Flux UI. The base livewire/flux package is free, and a paid Pro tier adds components like the date picker, charts, rich text editor and kanban (see their pricing page for current prices). Outside Flux, you can use any Blade component library or plain Tailwind.
On the Inertia side you get the whole Vue, React or Svelte ecosystem: shadcn-style components, data grids, charts, drag and drop, rich text editors. Our shadcn for Laravel guide shows how that looks in all three frameworks.
SEO and server-side rendering
Livewire pages are server-rendered HTML from the start, so search engines and link previews see real content with no extra setup.
Inertia pages render in the browser unless you turn on SSR. With SSR, Inertia renders the first page in a Node.js process (php artisan inertia:start-ssr in production), which means one more process to run and monitor. For a SaaS this often doesn't matter: the app sits behind a login and the marketing site is separate. If your public pages live inside the same app, plan for SSR. Our Inertia SSR guide covers the setup.
Real-time features
Both work with Laravel Echo and Reverb. In Livewire you put #[On('echo:orders,OrderShipped')] on a method and the component refreshes when the event arrives. In Inertia you use the useEcho hook from @laravel/echo-vue, @laravel/echo-react or @laravel/echo-svelte and then either update local state or do a partial reload. See real-time notifications with Reverb for a full example.
File uploads
Livewire's WithFileUploads trait uploads files to a temporary location as soon as they're picked, so you can preview and validate them before the form is submitted. It can also send temporary files straight to S3.
Inertia converts your form to FormData when it contains a file and reports progress. One thing to remember: send uploads on update routes as POST with a _method field, because PHP only parses multipart bodies on POST.
Flaky networks and offline-ish UX
Neither tool makes your SaaS work offline. Livewire needs the server for every action, but wire:offline lets you show a notice or disable buttons when the connection drops. Inertia keeps the current page usable (local state, open modals, typed input) and only fails when it needs the server. Inertia v3's optimistic updates also hide latency for actions like "mark as done", with automatic rollback on failure.
Testing
Livewire's testing helpers are excellent. Livewire::test('post.create')->set('name', 'Acme')->call('save')->assertHasErrors() tests the component, its validation and its output in one PHP test. Livewire also documents browser tests with Pest v4.
With Inertia you test the controller in Pest, check the component and props with assertInertia(), and test frontend behaviour separately (Vitest or browser tests). More tools, but clear boundaries.
Performance trade-offs
We won't quote benchmarks, because they depend on your app. The shape of the trade-off is simple, though:
- Livewire sends less JavaScript to the browser and does more work on the server. Each interaction costs a request, a component hydration and a render.
- Inertia sends a JavaScript bundle up front, then does most UI work in the browser. Each page visit costs one request that returns JSON.
For most dashboards both are fast enough. The usual problems are oversized payloads, which we cover in the mistakes below.
Livewire or Inertia: a decision table
| Pick Livewire when... | Pick Inertia when... |
|---|---|
| Your team is PHP-first and wants to stay that way | You have, or will hire, Vue/React/Svelte developers |
| The UI is mostly forms, tables and CRUD | The UI is app-like with lots of local interaction |
| Public pages must be server-rendered with no extra process | You want access to the npm component ecosystem |
| You like Flux and Blade components | You want shadcn-style components you own in your repo |
| One language across the stack matters most | A strict split between backend and UI code matters most |
| You want to test UI behaviour in PHP | You may share code with a React Native or other JS app later |
If you only answer one question, answer this: which language does the person building most of the screens want to write all day?
Three quick scenarios
A solo Laravel developer building an internal-tools SaaS. Lots of forms, approval flows and reports. They know Blade well and have never written React. We'd pick Livewire. They'll ship faster, and nothing in that product needs a heavy client-side UI.
A two-person startup building a project management tool. Drag-and-drop boards, inline editing, keyboard shortcuts, and one of the founders is a React developer. We'd pick Inertia with React. The board UI wants to be a client-side app, and the React developer can use the libraries they already know.
An agency handing projects to client teams. The client's team decides. Pick the stack the people maintaining it after launch can work in.
Mistakes we see on both sides
- Choosing by hype instead of by team. A great Livewire app beats a half-finished Inertia app, and the other way round.
- Putting secrets in public Livewire properties. Public properties are sent to the browser and back. Keep IDs and display values there, and load sensitive data inside methods. Lock properties the user shouldn't change.
- Passing whole Eloquent models as Inertia props. Every attribute ends up in the page source. Pass only what the page uses, ideally through a Data object or resource.
- Forgetting tenancy on background requests. In a multi-tenant app, Livewire's update endpoint and upload routes need your tenancy middleware too. stancl/tenancy documents this in its Livewire integration page. With Inertia, every request goes through your normal routes, so this problem doesn't come up.
- Mixing both in one product UI. It's possible, but two component systems and two ways of handling state make every feature slower to build. Pick one for the customer-facing app.
Frequently asked questions
Is Livewire better than Inertia?
Neither is better in general. Livewire is a better fit for PHP-first teams and form-heavy apps, while Inertia is a better fit for teams who want Vue, React or Svelte and a richer client-side UI. Both are offered in Laravel's official starter kits.
Can I use Livewire and Inertia in the same Laravel app?
Yes, on different routes. A common setup is Inertia for the customer app and a Livewire-based tool, such as a Filament admin panel, for internal staff. We'd avoid mixing them inside the same page. Our Filament vs Inertia comparison covers that split.
Is Livewire good for SEO?
Yes. Livewire renders HTML on the server, so the first response already contains your content. Inertia needs SSR turned on to send rendered HTML for the first page, which adds a Node.js process to your setup.
Do I need to know JavaScript to use Inertia?
Yes. With Inertia you write your pages in Vue, React or Svelte, so you need to be comfortable with one of them and with TypeScript or JavaScript tooling. Laravel still handles routing, validation, authorization and data, so you don't need to build a separate API.
Is Livewire slow?
Not for typical SaaS screens. Each interaction is a server round trip, so very chatty UIs can feel slower on high-latency connections. Islands, lazy loading and keeping work in Alpine for purely visual behaviour help a lot.
Livewire vs Inertia in the SaaS Laravel kits
The SaaS Laravel starter kits are Inertia-based. There's a Vue kit, a React kit and a Svelte kit, and all three share the same Laravel 13 backend: stancl/tenancy with a database per tenant, Fortify auth with two-factor and passkeys, spatie/laravel-permission roles, invitations, menus and settings. There is no Livewire kit.
We chose Inertia because it lets one backend serve three frontends. Controllers, Data objects, services and validation are identical in every kit, and only the page components change. With Livewire, the UI layer is the backend code, so we'd be maintaining a separate product. Inertia also makes tenancy simpler for us: every request goes through the same routes and middleware, which is how the kits switch between the central and tenant context (see Architecture).
That's a choice about how we build the kits, not a verdict on Livewire. If your team is Livewire-first, Laravel's own Livewire starter kit is a good place to begin.