Image Size Checker

You can check most browser-supported formats, including JPG, PNG, WebP, GIF, SVG, AVIF, and BMP. The checker reads the image locally and shows dimensions, file size, format, ratio, megapixels, and orientation when your browser can decode it.

Not exactly. Image dimensions mean width and height in pixels, while image file size means storage weight such as KB or MB. This page shows both so you can see whether an image is large enough, too heavy, or the wrong shape.

Yes. A photo is an image file, so the checker can show photo dimensions, file size, format, aspect ratio, megapixels, and orientation before you upload, publish, or resize it.

Usually no. For websites, social media, email, and most upload forms, pixel dimensions and file size matter more than DPI metadata. For web publishing, focus on width, height, aspect ratio, format, and file weight.

Large pixel dimensions, low compression, transparency, animation, high-quality exports, or inefficient formats can make an image file large. After checking file size, resize to the display size you need or choose JPG or WebP when transparency is not required.

Yes. After you add an image, Suggested sizes cards and the Common Image Sizes table compare it with YouTube thumbnail, Open Graph, square post, and vertical story targets. The result shows Exact match, Same ratio, or Needs resize.

Yes. Use Try sample image to load a generated local sample and test the full workflow, including dimensions, suggested sizes, resize preview, optimization preview, and downloads.

Yes. Suggested sizes include Use this size buttons for common targets such as Open Graph, YouTube thumbnail, square post, and vertical story. The button fills the resize width and height for you.

Yes. Add an image, enter a target width and height, use a suggested size, or choose a ratio such as 16:9 or 1:1. The browser creates a preview and downloads the new file locally without replacing the original.

Yes. Use Optimize file size to preview a lighter WebP or JPG copy with a quality slider. The slider starts at 5%, can be dragged freely, and includes clickable 5%, 25%, 50%, 75%, and 100% stops that show the estimated download size after preview.

By default, the resize tool uses Crop to fit when the target ratio differs, so the output fills the target without stretching. A visible crop frame appears for dragging and resizing before download. You can switch to No crop to resize the full image directly to the target pixels.

Yes. The resize preview includes Crop to fit and No crop modes. Crop to fit shows a draggable frame with the chosen aspect ratio; No crop resizes the full image directly to the target width and height.

Upload or paste an image, then enter the target width and height in pixels. The preview updates in the page, and Download Resized Image saves the processed file locally.

Enter a ratio such as 16:9, 4:3, 3:2, or 1:1. If you also enter width or height, the tool calculates the matching side and creates a scaled preview using that ratio.

Often yes, especially when output dimensions are smaller than the original. Final file size also depends on format, visual detail, transparency, browser encoding, and the WebP or JPG quality setting if you use Optimize file size.

The resized download is generated by the browser canvas, so EXIF camera data, GPS data, and some color profile information may not be preserved. Keep the original file if metadata matters.

Yes. The core image check, resize, and optimize workflow runs in your browser. Images are not uploaded just to read dimensions, compare common sizes, create a preview, copy results, or download a processed file.

Yes. The Suggested sizes cards and common sizes table include Open Graph, YouTube thumbnail, square social post, and vertical story references. You can check whether your image matches the target, has the same ratio, or needs resizing, then apply the target size.