Dimension Finder

Upload or drag in an image and instantly see its exact width and height in pixels, aspect ratio, file size, and format (JPEG, PNG, WebP, etc.) — no image editor required. Useful for checking whether an image meets a platform's upload requirements (social media banners, ad specs, print resolution), comparing before/after compression sizes, or quickly confirming an asset's dimensions before dropping it into a design file.

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Image Dimensions

Instantly Inspect Image Dimensions, Aspect Ratios, and File Metadata

Checking whether an image file matches specific upload requirements or design specs should not require opening heavy photo editing software. Inspecting resolution, file size, and image format is essential before publishing assets online or handing off files for production.

The Image Dimension Finder extracts exact pixel dimensions, aspect ratios, and format properties directly from your browser—no upload wait time, and no software installation required.

Key Features

  • Pixel-Exact Resolution Detection: Retrieve true width and height values in pixels (px) instantly.
  • Aspect Ratio Calculation: Automatically compute standard aspect ratios (e.g., 16:9, 4:3, 1:1, 21:9) to ensure proper fit across web layouts, video containers, and social media banners.
  • File Size & Format Analysis: View accurate file size measurements (KB, MB) alongside MIME format detection (JPEG, PNG, WebP, SVG, GIF, AVIF).
  • Client-Side Privacy: Images are parsed locally using your browser's internal engine—your media assets are never uploaded, stored, or processed on external servers.
  • Batch Drop Area: Drag and drop single or multiple image files to inspect assets consecutively.

Common Use Cases

  • Social & Ad Spec Verification: Confirm that cover photos, display ads, and profile banners meet exact platform size guidelines before publishing.
  • Web Performance Optimization: Compare original versus compressed image file sizes to ensure fast page load speeds without sacrificing visual quality.
  • Design & Development Handoffs: Quickly verify canvas dimensions and asset ratios before dropping graphics into web layouts, apps, or design software.

Drag and drop an image or click Select Image above to view its exact dimensions and file metadata immediately.