fireship-io/flamethrower

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

2776 stars · 111 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A 2kB zero-config client-side router and prefetcher for static sites that makes page navigation feel like a single-page app. It prefetches visible links, intercepts clicks and popstate events, and swaps the page body while merging the head without re-executing head scripts.

Use cases

• make a static site feel like a fast SPA
• add client-side routing to a plain HTML site without a framework
• prefetch links before the user clicks them
• share JavaScript state between page navigations
• speed up navigation on an Astro or static HTML site
• show a progress bar while the next page loads

When to choose

• you have a static or server-rendered multi-page site and want SPA-like navigation
• you want a tiny dependency with zero configuration
• you use native web components and want long-lived JS behavior across navigations
• you want opt-in prefetching of visible or hovered links

When to avoid

• your site is already a fully hydrated SPA like Next.js
• you need a full frontend framework with state management and rendering
• you rely on partially hydrated components that may flash between routes
• you need server-side routing or SSR

Facets

library · maturity active

routing http-client middleware web-development frontend performance browser static-site-router prefetcher spa-feel zero-config tiny-bundle history-api web-components client-side-navigation nodejs web-server

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