PURE-HASH [03]
PureHash
Metadata Stripper & Hash Verifier
JPEG / PNGEXIF / IPTC / XMPSHA-256 / SHA-1 / MD5BEFORE & AFTER
DROP A JPEG OR PNG OR CLICK
strips EXIF · IPTC · XMP · up to 50.00 MB
ABOUT PUREHASH
PureHash strips all embedded metadata from JPEG and PNG images, then computes SHA-256, SHA-1, and MD5 hashes for both the original and cleaned file side by side. The before-and-after hash comparison lets you verify exactly what changed, proving the pixel data is identical while the metadata was removed. SHA-1 and MD5 are flagged as legacy since they are broken for cryptographic security, but remain widely used for file verification.
USE CASES
- Share photos online without exposing GPS location, camera model, or shooting timestamps
- Verify that metadata removal did not alter the image pixels by comparing hashes
- Produce consistent hashes for files shared across teams where metadata may differ between copies
- Legal and forensic contexts where metadata provenance and pixel-level integrity both matter
FREQUENTLY ASKED
What is the difference between SHA-256, SHA-1, and MD5?+
SHA-256 is the current standard and produces a 256-bit digest, used for security-sensitive verification. SHA-1 (160-bit) and MD5 (128-bit) are older algorithms with known collision vulnerabilities. They are no longer safe for security purposes but are still useful for quick file-change detection.
Does stripping metadata change the image visually?+
No. Metadata like EXIF and IPTC is stored in the file header, entirely separate from the image pixel data. The visual content of the image is unchanged. The SHA-256 of the raw pixel data would be identical before and after.
Can I use the hash to verify a file someone sent me?+
Yes. If the sender provides the SHA-256 hash of the original file, drop the received file into PureHash and compare. A matching hash proves the file was not modified in transit.