Sharp

Sharp is a free, open-source Node-API module for image processing, commonly used to turn large images into smaller, web-friendly images. It can resize, rotate, extract, composite, change color modes, and apply gamma correction. It reads JPEG, PNG, WebP, GIF, AVIF, TIFF, and SVG, and can output those formats or raw pixel data. Inputs and outputs can use streams, Buffer objects, or the filesystem, and one input stream can feed multiple pipelines. Sharp also creates Deep Zoom image pyramids and can optimize JPEG, PNG, and animated GIF output size. It processes image regions using multiple CPU cores and supports Promises and async/await. The maker says resizing is typically 4–5 times faster than the quickest ImageMagick and GraphicsMagick settings. Sharp requires a Node-API v9-compatible runtime, such as Node.js 20.9.0 or newer; it also works with Deno and Bun. Prebuilt binaries are provided for macOS, Linux, and Windows. The optional WebAssembly package does not support browsers or single-threaded environments.