Native out of the box image optimization support via Bun

[muhammad-fiaz]

This is a follow-up feature request from #29841. I am not sure why the robobun bot
closed it automatically since it is clearly a feature request with no bug to reproduce.

The Idea

Bun should ship with a native image optimization API out of the box, similar to what
Next.js offers with next/image, but without any framework dependency.

Today, developers building directly with Bun have no first-party way to handle:

• Format conversion (WebP, AVIF)
• Resizing and responsive srcset generation
• Low-quality image placeholders (LQIP / BlurHash)

Every major framework ships this as a primitive. Bun, with its bundler and runtime
combined, is uniquely positioned to offer this natively.

Proposed API

// Bundler static import
import hero from './hero.jpg' with { type: 'image' };
// => { src: '/hero.webp', width: 1200, height: 630, blurDataURL: 'data:...' }

// Runtime API
const optimized = await Bun.image('./hero.jpg').resize(800, 600).toWebP();
await Bun.write('output.webp', optimized);

Why Bun

• sharp requires native bindings and has no first-party Bun integration
• squoosh is abandoned
• vite-imagetools is Vite-specific
• next/image is tied to the Next.js ecosystem

A native Bun.image() API would make Bun a complete full-stack primitive without
any vendor or framework lock-in.

Would love to hear the community's thoughts and whether maintainers see this as feasible.