ResponsiveImage

The multi-framework JavaScript library for responsive images.

Key Features

📦 Multi Framework: Supports Vite and Webpack for local image processing, a framework-agnostic core and components for multiple frontend frameworks: Ember.js, Lit, Solid, Svelte and React.

🌇 Next-gen image formats: Supports basic PNG and JPEG formats, as well as next-gen WebP and AVIF, for increased performance with optimal image quality at small file sizes.

🛠️ Local image processing: Fast image processing of local images with a selection of optionally applyable filters and effects, using the popular sharp library.

🌍 Image CDNs: Besides processing of local images, it also supports integrating remote images from image CDNs like Cloudinary or imgix using a versatile image provider abstraction.

⏳ Image Placeholders: Supports Low Quality Image Placeholders (LQIP) techniques to show a preview while loading, using different strategies like a blurry low-res image, BlurHash or a simple dominant color.

📱 Layout modes: Layout modes for fixed sizes (with 1x and 2x image variants) as well as responsive layouts (srcset with optimized image sizes across all devices).

🏎 Web Performance: Lazy rendering by default, with optimized content-visibility and decoding settings and optimized markup, to prevent CLS (Cumulative Layout Shift), a core Web Vital and Lighthouse metric.

✨ High Quality: Engineered with quality in mind, all functionality is fully tested (unit and integration tests), packages ship with native TypeScript types.

Documentation

Visit responsive-image.dev for our complete documentation site.

Contributing

See the Contributing guide for details.

License

This project is licensed under the MIT License.