Skip to content
Back to Stack Recommender

Mithril SPA

Mithril.js for tiny pragmatic SPAs.

FrontendSimple

Stack Components

FrameworkMithril 2
BuildVite 6
StateMithril stream
StylingCSS

Why

9KB, no build step required, hyperscript. JavaScript is used by 62% of developers per the Stack Overflow 2024 survey, and React holds 40% framework market share (State of JS 2024).

Vite replaced Webpack as the default bundler, cutting dev server startup from 30s to <1s.

When

Use for minimal SPAs and prototypes. Avoid for complex state management.

How

1. npm i mithril 2. Write m() components 3. m.mount(document.body, App) 5. Add environment configuration — cp .env.example .env && edit values 6. Run tests — npm test or pnpm test to verify setup 7. Deploy — git push to trigger CI/CD or manual deploy

Example

const App = { view: (v) => m('button', { onclick: () => v.state.count++ }, v.state.count || 0) } m.mount(document.body, App)

Common Problems

  • ⚠No JSX — hyperscript syntax learning curve
  • ⚠Limited ecosystem — write utilities yourself
  • ⚠Configuration drift between environments — use infrastructure-as-code (Terraform/Pulumi) to keep dev/staging/prod identical

Best Practices

  • ✓Use m.route for routing
  • ✓Leverage m.request for XHR with auto-redraw
  • ✓Set up health checks and graceful shutdown — handle SIGTERM to drain in-flight requests before exit

FAQ

What is Mithril SPA and what projects is it for?

Mithril.js for tiny pragmatic SPAs. It pairs layered technologies for end-to-end type safety and out-of-the-box deploys, fitting everything from MVPs to production SaaS.

How do I spin up a working demo with Mithril SPA in 10 minutes?

Two steps: (1) npm i mithril; (2) Write m() components. Get the local dev server running, then wire one real data source to verify the end-to-end loop.

What is the most common pitfall with Mithril SPA and how do I avoid it?

The most common pitfall is: No JSX — hyperscript syntax learning curve. Avoid it by adding the matching checklist to your PR template and running type-check + lint + unit tests in CI — three gates before merge.

What are the best practices for Mithril SPA?

Best practices for Mithril SPA include: Use m.route for routing; Leverage m.request for XHR with auto-redraw; Set up health checks and graceful shutdown — handle SIGTERM to drain in-flight requests before exit. The first one — "Use m.route for routing" — should be set up at project init to avoid costly rework later.

When should I NOT choose Mithril SPA?

Pick something else in three cases: (1) the team has zero experience with the core framework and the deadline is tight (learning-curve risk); (2) it's a pure content/marketing site (Astro is lighter); (3) you need very high throughput (>10k RPS) or strict-consistency microservices (Go/Rust). Mithril SPA shines for mid-to-high complexity full-stack and API work — don't over-engineer simple static pages with it.