Image Format Info
View image dimensions, file size, and format. Upload or drag-and-drop. Max 12 MB. No conversion. Processing in your browser only.
View image format info. Upload or drag-and-drop an image (max 12 MB). The tool shows dimensions (width × height), file size, and detected format. No conversion is performed. Your image is never uploaded.
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Examples
- Upload photo → see 1920×1080, 1.2 MB, JPEG
- Check dimensions before resizing
FAQ
Why is SVG not supported?
This tool reads dimensions by drawing the image to a canvas. SVG is not supported in that flow.
What is the maximum file size?
12 MB per image.
Is my image sent to a server?
No. The tool only reads file size and type and draws the image locally to get dimensions. Your image never leaves your device.
What is EXIF data and can this tool read it?
EXIF is metadata embedded in JPEG and some other image files: camera model, date taken, GPS coordinates, ISO, shutter speed. This tool reads basic info (dimensions, file size, format) but does not parse EXIF. Use a dedicated EXIF viewer for full metadata.
What is the difference between image format and file extension?
The file extension (.jpg, .png) is just a name hint. The actual format is detected from the file's binary header (magic bytes). A renamed .jpg file is still JPEG internally. This tool detects format from the file content.
What do image dimensions mean for print?
Print quality depends on DPI (dots per inch). At 300 DPI, a 3000×2000 px image prints at 10×6.67 inches. At 72 DPI (screen), the same image appears 41.7×27.8 inches. Higher DPI means sharper print but a physically smaller image at the same pixel count.
How is DPI stored in an image file?
DPI (or PPI, pixels per inch) is stored as a metadata field in JPEG, PNG, and TIFF files. It does not affect pixel dimensions — it only tells printing software how large to render the image. Changing DPI in metadata does not resize the image.
How do I know if an image is suitable for printing?
Divide pixel dimensions by your desired DPI. For a 4×6 inch photo at 300 DPI, you need at least 1200×1800 px. A 500×500 px image would print at only about 1.67 inches at 300 DPI — too small for a poster but fine for a thumbnail.
What are common image dimensions for social media?
Facebook cover: 820×312 px. Instagram post: 1080×1080 px. Twitter/X header: 1500×500 px. LinkedIn banner: 1584×396 px. YouTube thumbnail: 1280×720 px. Open Graph image (shared URL): 1200×630 px.
What is the difference between HEIC and JPEG?
HEIC (High Efficiency Image Container) is Apple's format used on iPhones. It uses HEVC compression and stores roughly twice as much detail as JPEG at the same file size. HEIC is not universally supported — browsers, Windows, and Android may need a plugin.
What is the difference between AVIF and WebP?
AVIF uses AV1 compression and is newer and more efficient than WebP — typically 20–40% smaller at the same quality. However, AVIF encoding is slower and support is slightly less universal. Both are supported in modern Chrome, Firefox, and Safari.