image-dimensions
A lightweight JavaScript library to get image dimensions (width, height, type) from streams or data with minimal reads.
What is image-dimensions?
image-dimensions is a JavaScript library that extracts width, height, and format type from image files without loading the entire image. It solves the problem of efficiently obtaining image metadata by reading only the necessary bytes from streams or in-memory data, supporting formats like JPEG, PNG, WebP, AVIF, and HEIF.
JavaScript developers working in Node.js, browsers, Bun, or Deno who need to quickly retrieve image dimensions for processing, validation, or layout calculations without full image decoding.
Developers choose image-dimensions for its zero dependencies, cross-environment compatibility, and efficient stream-based reading that minimizes data transfer and memory usage compared to heavier alternatives like image-size.
Overview
Get the dimensions of an image
Use Cases
Best For
- Extracting image metadata from network streams in browser applications
- Validating image dimensions in server-side Node.js processing pipelines
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