Choose Axum if you want Tower middleware and an Axum-based starting point. Choose Actix Web if its application model fits your team or you already have working Actix code. For a SaaS, compare the complete signup-to-paid-account workflow before comparing request throughput.

ShipRust uses Axum, so we have a stake in that choice. This is a documentation-backed comparison, not a benchmark or a claim that we implemented the same application twice. We checked Axum 0.8.9 and Actix Web 4.15.0 documentation on October 12, 2026.

Axum vs Actix: what changes in your code?

Both provide routing and request extraction. Axum builds on Tower's service and middleware model. Actix Web organizes applications around App, scopes, and its own middleware interfaces. The practical difference is which abstractions you will use when extending the app. See the Axum reference and Actix application guide.

Decision	Axum	Actix Web
Route organization	Compose `Router` values	Configure `App`, services, and scopes
Shared database pool	Expose it through application state and `State`	Register it as application data and extract `web::Data`
Middleware investment	Useful when you want Tower-compatible components	Useful when your existing integrations use Actix interfaces
Custom error responses	Convert your application error with `IntoResponse`	Implement `ResponseError` for your application error
Strong reason to stay	Existing Axum routes, layers, and tests	Existing Actix handlers, middleware, and tests

Actix Web is not the same thing as the Actix actor framework. Its documentation separates the two; adopting the web framework does not mean designing your SaaS around actors.

Compare one complete customer workflow

Use this evaluation exercise: a customer signs up, verifies their email, creates a project, and requests an export. These are proposed acceptance checks, not results from a comparative test.

Boundary	What to verify in either framework
Signup request	Invalid input produces a useful response; expensive password work does not consume request workers directly
Verified account	An unverified or expired session cannot reach protected actions
Database access	The handler uses the intended shared pool; failures do not expose connection details
Create project + enqueue export	A failed transaction leaves neither a project nor its queued export
Worker retry	Retrying an export does not create an unintended duplicate external effect

The framework-specific code lives around those boundaries. The business rules should remain understandable without tracing every router and middleware layer.

One concrete Actix detail deserves attention: its application factory creates application instances per worker. The official guide recommends constructing state outside that factory when it must be shared globally. An accidental pool-per-worker configuration can change your connection budget.

For errors, define the public response deliberately. Actix's error-handling guide distinguishes user-facing failures from internal failures. Apply the same policy to Axum: log diagnostic context internally, while returning a safe status and message to the customer.

What ShipRust's Axum implementation adds

An HTTP framework is only one part of our downloaded application. ShipRust combines Axum with Maud-rendered pages, PostgreSQL, SQLx, and shared authentication code. Our email/password walkthrough follows verification, session creation, and bounded password-hashing work.

The queue is a separate concern. ShipRust's enqueue API accepts a SQLx transaction, letting application data and follow-up work commit together. The worker runs the job afterward. That is an application/database design, not an exclusive Axum feature; an Actix application can use the same design. Read the Postgres job-queue walkthrough for the implementation and retry limits.

For another concrete Axum application, Built with Rust describes its own directory stack: Axum, Maud, and SQLite. That example illustrates a different database choice, not evidence that either framework is faster.

Which should you choose?

Keep Actix Web if you can already build and operate the required workflow with it. A change in framework needs a measurable benefit beyond a shorter hello-world handler.

Choose Axum if Tower integration matches your application, or if an Axum starter gives you working foundations you would otherwise assemble yourself. Before committing, exercise database failures, authorization, and a retry in a small prototype.

If that points you toward ShipRust, review the setup steps and purchase requirements. Then create and verify your account, purchase lifetime access, and generate your project. You still configure email, deployment, and any optional providers for your own app.