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Browser-local workspace

Check image size and dimensions privately

Inspect pixel dimensions, aspect ratio, megapixels, file size, and format locally without changing your image.

  • No upload
  • No sign-up
  • JPG, PNG, and WebP
PixelShrink workspace
Local only

Nothing selected yet

    Per image

    25 MB

    Images per batch

    20

    Batch limit

    150 MB

    A practical guide

    Read the measurements before deciding what to change.

    The image size checker inspects a JPG, PNG, or WebP without creating a new image. After local decoding, it reports pixel width and height, simplified aspect ratio, megapixels, byte size, and MIME type. These measurements answer different questions: dimensions describe the pixel grid, while bytes describe the storage or transfer weight of this particular file.

    A wide image is not automatically a large file, and two images with identical dimensions can have very different byte sizes because their formats, encoder settings, and visual complexity differ. Use the measurements to compare an upload requirement with the actual source before resizing, compressing, or converting. The checker does not currently report reliable color-space or camera metadata.

    Format notes

    Know what changes—and what does not.

    Pixels and bytes are separate measurements

    Dimensions affect display and decoded memory; file bytes depend on format, content, quality, and prior optimization.

    Aspect ratio describes shape

    A 1920 × 1080 image simplifies to 16:9. The ratio helps choose layouts without saying anything about file weight.

    This is not a metadata reader

    The checker reports dependable file and decoded-image measurements, not EXIF, GPS, camera settings, or a guaranteed color profile.

    Good fits

    Useful choices for real files.

    Checking a CMS requirement

    Confirm both the maximum dimensions and byte limit before changing an image that may already comply.

    Comparing visually similar files

    Inspect a JPG and WebP with the same dimensions to see their actual byte sizes rather than assuming one format is smaller.

    Privacy by design

    Your image does not become our file.

    Inspection reads the file header and decoded dimensions in your browser. No transformed copy is created, and the selected bytes are not posted to PixelShrink. The local preview URL is temporary and is revoked when you remove or reset the file.

    Frequently asked questions

    Answers before you start.

    What is the difference between dimensions and file size?

    Dimensions are the width and height in pixels. File size is the number of bytes stored or transferred; it also depends on format and encoding.

    Does checking an image modify it?

    No. PixelShrink decodes the source for validation and measurement but does not write a replacement file on this route.

    Can this checker show EXIF or GPS data?

    Not currently. Metadata inspection is a separate feature and will only be added after a suitable local-only implementation is selected and tested.

    Related tools

    Keep the next image task local.