EXIF Metadata Analyzer

How the exif metadata analyzer works

Most photos carry hidden metadata written by the camera or phone: the make and model, the exact capture time and time zone, exposure settings, and often the GPS position, altitude and the direction the camera was facing. This tool reads EXIF, GPS, IPTC, XMP, ICC and MakerNote data, shows every field with a plain-language explanation, plots the location on a map and computes MD5, SHA-1 and SHA-256 hashes of the file.

It then checks the fields against each other. An original camera file is internally consistent: the GPS clock agrees with the capture time, the recorded time zone matches the location, the capture time has a natural fraction of a second, and an embedded thumbnail is present. When a photo is edited, exported or re-saved, some of these links often break. The tool lists each break as an indicator with a severity, never as a verdict, because metadata can also be rewritten deliberately and consistently.

Everything runs inside your browser tab. The photo is read from your device, analysed in memory and discarded; it is never uploaded, stored or logged. The only outside request is the map, which receives just the coordinates.

Frequently asked questions

Is my photo uploaded anywhere?

No. The file is read and analysed in your browser and never sent to a server. Only the map view contacts Google Maps, and it receives the coordinates, not the photo.

Why does my WhatsApp or Instagram photo show no metadata?

Most messaging and social apps remove EXIF data, including GPS, when a photo is sent as a normal image or uploaded. Sending a file as a document usually keeps the original metadata. A screenshot also creates a new file without the original photo's metadata.

Can this tool prove a photo was edited?

No tool can prove that from metadata alone. The indicators show where fields disagree with each other, which is a reason to look closer. Someone with the right tools can rewrite every field consistently, so investigators corroborate with the original file, the source device, cloud backups and other records.

What does the time zone and location mismatch mean?

A phone normally records the capture time in the time zone where it is. If the GPS position is in one time zone but the photo time is stamped with another, the date, time or location may have been changed after capture, or the device clock was set manually.

How does the metadata removal work?

For JPEG and PNG the tool removes the metadata segments directly from the file without re-compressing the image, so quality is unchanged. Orientation is kept so the photo does not rotate, and you can choose to keep the colour profile. Other formats are re-encoded as JPEG.

What is included in the PDF report?

A report ID and timestamp, file details and preview, MD5, SHA-1 and SHA-256 hashes, every indicator with its severity, date and time analysis, location with a Google Maps link, camera settings, embedded data and the full metadata listing.

Other forensic tools

• SerologyBloodstain Impact AngleCalculate the angle of impact of a blood droplet from its width-to-length ratio.
• BiologyTime Since Death EstimatorEstimate post-mortem interval from body temperature using the Henssge nomogram approach.
• BallisticsBullet TrajectoryReconstruct a shooting angle from entry and reference point measurements.
• ToxicologyWidmark BAC CalculatorEstimate blood alcohol concentration using the Widmark formula for casework context.