Image Metadata Viewer

What is image metadata?

Image metadata is descriptive and technical information embedded in or associated with an image file. It tells you what the file is, how big it is, what format it uses, when it was created, and — for photographs — often much more, such as the camera make and model, exposure settings, GPS location, and software used. Common metadata frameworks include EXIF (Exchangeable Image File Format) for camera data, IPTC for editorial and captioning information, and XMP (Extensible Metadata Platform) for Adobe-style structured metadata.

At the file-system level, every image also carries basic properties: the file name, byte size, MIME type (for example image/png or image/jpeg), last-modified timestamp, and — once the file is decoded by a browser — pixel dimensions (width × height) and the aspect ratio. This lightweight metadata is universally available without parsing the file's internal chunks, which is exactly what this viewer extracts and displays.

What does this tool show?

This Image Metadata Viewer reads an image file entirely in your browser and reports the following properties in a clean, copy-friendly list:

• File name. The original name of the uploaded file, including its extension.
• File size. The byte length of the file, formatted in B, KB, or MB for readability.
• MIME type. The media type reported by the browser, such as image/png, image/jpeg, image/webp, image/gif, or image/heic.
• Dimensions. The decoded pixel width and height of the image (for example 4000×3000).
• Aspect ratio. The simplified width-to-height ratio (e.g. 4:3 or 16:9), useful for layout planning.
• Megapixels. The total pixel count divided by one million, a quick gauge of image resolution.
• Last modified. The file's last-modified timestamp from the file system, shown as a human-readable date.
• Preview. A live preview of the decoded image, so you can confirm the file is what you think it is.

Because the viewer is read-only and never uploads the file, it is safe to use on confidential or personal images. Nothing leaves your device.

Why inspect image metadata?

Checking an image's metadata is a small step that prevents a surprising number of real-world problems. Knowing the exact dimensions, file size, and format before you publish, embed, or share saves rework later. Typical situations where metadata inspection helps include:

• Web publishing. Verify that an image meets a platform's dimension and file-size limits before uploading to a CMS, social network, or ad platform.
• Performance tuning. Spot oversized images that slow down page loads; large megapixel counts and byte sizes are a strong signal that compression or resizing is needed.
• Layout and design. Confirm the aspect ratio before placing an image in a fixed-ratio container, hero slot, or thumbnail grid to avoid cropping or distortion.
• Format auditing. Identify whether a file is PNG, JPG, WebP, GIF, BMP, or HEIC so you can pick the right conversion or optimization path.
• Asset inventory. Quickly catalog a batch of images by recording their dimensions, sizes, and types without opening each one in an editor.
• Debugging. Investigate why an image fails to render or upload — a mismatched MIME type, zero-byte file, or unsupported codec is often the cause.

How to view image metadata

Using this tool is effortless — there is no Convert button and no waiting. The metadata is shown the moment the image is loaded. Follow these three steps:

1. Upload an image. Click the upload area above or drag and drop a PNG, JPG, WebP, GIF, BMP, or HEIC file from your computer.
2. Read the metadata. As soon as the browser decodes the image, the file name, size, MIME type, dimensions, aspect ratio, megapixel count, and last-modified date are listed automatically below the preview.
3. Remove or replace. Click the × button to clear the current file, then drop another image to inspect it just as quickly.

Every step runs locally in your browser using JavaScript and the Canvas API. The image is never uploaded to a server, so the inspection is completely private and suitable for confidential assets.

Image metadata vs EXIF data

People often use "image metadata" and "EXIF" interchangeably, but they are not the same. EXIF is a specific metadata standard focused on camera-capture information — aperture, shutter speed, ISO, focal length, GPS coordinates, and so on — and it is typically embedded in JPG and TIFF files produced by digital cameras. Image metadata in the broader sense includes EXIF but also covers the file-level properties (name, size, type, dimensions, last-modified) that every image carries regardless of format.

This viewer focuses on the universally-available file-level metadata because it works for every supported format (PNG, JPG, WebP, GIF, BMP, HEIC) without needing to parse format-specific chunks. If you need full EXIF, IPTC, or XMP extraction, dedicated EXIF readers parse the binary headers of JPG/TIFF files; this tool instead gives you the fast, always-available overview that covers 95% of everyday metadata questions.