Image Format Detector

What format is your image? Upload any image file and instantly identify its true format by analyzing magic bytes - not just the file extension. View dimensions, color depth, EXIF metadata, and get recommended conversion tools for your file. Need to view full EXIF data? Try our EXIF viewer.

Drop your image here

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JPG PNG WebP GIF HEIC AVIF SVG BMP TIFF ICO
100% Private - Analysis happens in your browser
Related Tools:
EXIF Viewer EXIF Remover Image Resizer Compression Analyzer Color Picker All Converters

How to Identify Your Image Format

  1. Upload any image file by dragging and dropping or clicking the upload area. All common formats are supported, including HEIC, AVIF, JXL, and more.
  2. View instant analysis - the tool reads the file's magic bytes (header signature) to detect the true format, regardless of file extension.
  3. Explore metadata - see dimensions, color depth, alpha channel, animation status, and EXIF camera data. For full EXIF details, use our EXIF file viewer.
  4. Convert your image using the suggested tools based on the detected format. Links to the best converters, compressors, and editors are shown automatically.

What This Tool Detects

True Format via Magic Bytes

File extensions can be wrong or missing. This tool reads the actual file header bytes to identify the real format - whether it's JPEG, PNG, WebP, or something else entirely.

Dimensions and Color Depth

See the exact pixel width and height, aspect ratio, total pixel count, and estimated color depth. Useful before resizing or cropping your images.

EXIF and Camera Data

For photos, see camera make/model, date taken, exposure settings, ISO, and focal length. Use our EXIF remover to strip metadata for privacy before sharing.

Format-Specific Details

Detects transparency (alpha channel), animation (GIF, APNG, animated WebP), interlacing, and compression type. Helps you choose the right compression or conversion strategy.

Frequently Asked Questions

Magic bytes (also called file signatures) are the first few bytes of a file that identify its format. For example, JPEG files always start with FF D8 FF, PNG files with 89 50 4E 47. This is more reliable than the file extension, which can be renamed or wrong.

This is more common than you'd think. Files get renamed, downloaded with wrong extensions, or converted without updating the extension. A file named "photo.png" might actually be a JPEG inside. This tool shows the real format so you can convert it properly.

The detector identifies JPEG, PNG, GIF, WebP, AVIF, HEIC/HEIF, TIFF, BMP, SVG, ICO, JXL (JPEG XL), APNG, and more. Even if your browser can't preview the image, the magic bytes analysis will still identify the format correctly.

No. All analysis happens entirely in your browser using JavaScript. Your file is read locally and never leaves your device. The magic bytes, dimensions, and metadata are all extracted client-side for complete privacy.

This tool focuses on identifying the image format and showing key properties at a glance. Our EXIF file viewer dives deeper into all metadata, including GPS coordinates, color profiles, software info, and every EXIF tag in the file.

After analysis, the tool shows recommended converters based on your format. For example, if you have a HEIC file, you'll see links to convert to JPG, PNG, or PDF. You can also browse all image converters on ConvertICO.