Hey Hunters! 👋 I'm the maker of File Deep Info. As a developer/sysadmin, I often find myself dealing with files from unknown sources. My workflow used to be fragmented: one tool for checksums, another for hex previews, and yet another for checking EXIF data or Office revisions. But things get tricky when you need to confirm if a .zip is actually an executable, or when you need to dig into deep-nested objects inside an Office doc, find hidden scripts in a PDF, or detect LSB steganography in an image. Existing tools either didn't go deep enough or required a subscription to a bulky suite. That’s why I built File Deep Info. It’s a native macOS tool designed for deep file forensics and privacy auditing. What problems does it solve? - Deep Format Identification: Beyond extension matching. It supports 90+ deep signature scans and thousands of validations (from CAD to iWork) to spot "masqueraded" files. - Hidden Data Audit: We find what’s buried—hidden sheets in Excel, "redacted" text in PDFs that wasn't actually deleted, and EOF overlays or LSB steganography in images. - Recursive Analysis: You can "drill down" into nested objects. Found an Excel sheet inside a Word doc? You can analyze its inner streams recursively without leaving the app. - Metadata & Xattr: Full access to doc properties, EXIF, and macOS-specific extended attributes (like kMDItemWhereFroms or quarantine info). - Performance: Blazing fast checksums (MD5, SHA, CRC32) with a 256-byte Hex preview for quick signature confirmation. - Privacy-First & Community-Friendly: 100% Local: No data ever leaves your Mac. It’s built for privacy-conscious users. Generous Free Version: Fingerprinting, format detection, and basic hidden data scans are free with NO ads or pop-ups. It covers 95% of daily use cases. Pro Version: Only needed for professional auditors who require recursive analysis and unlimited object exports. I’d love to hear your thoughts! What's the weirdest thing you've ever found inside a file? Happy hunting! 🚀

File Deep Info: Hidden Data

Inspect everything hidden in your documents

Inspect everything hidden in your documents