REAL FILE TYPE
Extensions can lie
File Lab reads identifying bytes inside the file instead of trusting only the filename. If the signature and extension disagree, it flags the mismatch.
IDENTIFY • VERIFY • INSPECT
Know what a file
actually contains.
File Lab checks real file signatures, calculates SHA-256, finds exact duplicates, spots extension mismatches, reads ZIP/TAR/ISO contents, and creates metadata-clean image copies—all locally.
Formatify File Lablocal inspection workspace
No uploads
0files
0identified
0duplicates
0mismatches
ANALYSISFile results
EMPTYNo files selectedFile details, checksums, duplicate groups, and archive contents will appear here.
EXACT DUPLICATES
Same SHA-256 means same bytes
Files are marked as exact duplicates only when their full SHA-256 values match. Similar-looking images with different bytes are not grouped together.
READ-ONLY ARCHIVES
Look inside without extracting
File Lab can list standard ZIP, TAR, and ISO 9660 entries. It does not execute files or modify disk images.
METADATA CLEANING
Fresh image copy
For PNG, JPG, and WebP images, Formatify can redraw the image and download a new copy without the original metadata blocks. Animated images are not cleaned.