EXIF Viewer

How to Use

1. Click the area above to select a file, or drag and drop a file onto the page
2. Adjust parameters in the settings area
3. Click the process button and download the result when ready

Frequently Asked Questions

How It Works

The EXIF Viewer uses the JavaScript EXIF library (or browser-native metadata parsing) to read embedded metadata from image files. The tool parses the image's binary data structure to extract EXIF (Exchangeable Image File Format), IPTC, and XMP metadata blocks.

The metadata parsing process: (1) The image file is read as an ArrayBuffer. (2) The JPEG markers are parsed to locate the EXIF APP1 segment. (3) The TIFF header within the EXIF block contains tag entries mapping numeric IDs to metadata fields. (4) The tool resolves these IDs to human-readable names: camera make/model (tag 0x010F), date/time (tag 0x0132), GPS coordinates (tags 0x8825), exposure time (tag 0x829A), F-number (tag 0x829D), ISO (tag 0x8827), focal length (tag 0x920A), and more.

GPS data is parsed from the GPS IFD (Image File Directory) and converted from DMS (Degrees/Minutes/Seconds) to decimal coordinates. The tool displays all found metadata in a structured, categorized format.

Tips & Best Practices

• JPEG and TIFF have best EXIF support: PNG and WebP may have limited or no EXIF data depending on how they were saved.
• Check GPS data: GPS coordinates in EXIF reveal the exact location where a photo was taken — useful for travel photography organization.
• Verify camera settings: Use exposure, aperture, and ISO data to learn from successful shots and improve your photography technique.
• Privacy awareness: Before sharing photos publicly, check for GPS and personal information in the metadata that you may want to remove.
• Use format conversion to strip metadata: Converting to PNG or re-saving as JPEG without preserving metadata removes all EXIF data.
• Compare settings: Analyze metadata across multiple photos to understand how different camera settings affect the final image quality.

Use Cases

Photographers reviewing camera settings from successful shots to replicate specific exposure and aperture combinations in future work.

Real estate agents verifying property location data in listing photos is accurate before publishing to MLS systems. Privacy-conscious users checking images for GPS coordinates and camera information before sharing on social media. Forensic analysts examining metadata for evidence documentation including timestamps and camera identification. Stock photographers verifying copyright and creator metadata is correctly embedded in their submissions. Design teams auditing image specifications (resolution, color space, bit depth) for print production readiness.

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