Inspection Terminal
Supports .pdf, .jpg, .png, .tiff
Drop file here to inspect
Or click to browse
100% sterile files. 0% server uploads.
Designed for security researchers, journalists, and privacy advocates.
100% Client-Side
Your files never leave your device. All forensic parsing and sanitization happens entirely in your browser's memory using WebAssembly and Canvas APIs.
White-Box Trap Detection
Identifies hidden text traps in PDFs where selectable text is painted over with graphic fill layers to trick reviewers.
EXIF & Thumbnail Destruction
Completely re-encodes raw pixel data natively. Prevents "Uncropped Thumbnail" leaks where EXIF thumbnails retain uncropped image fragments.
XMP Network Stripping
Safely destroys embedded XMP metadata streams that can leak local file paths, editing history, or call home to third-party servers.
Frequently Asked Questions
Does this tool upload my files?
No. SterileFile is a pure HTML/JS application. You can disconnect from the internet after loading the page, and it will still work perfectly.
How does image sanitization work?
Instead of risky EXIF tag deletion, we paint the image onto an offscreen HTML5 canvas and extract the raw, naked pixels. This guarantees absolute zero-metadata re-encoding.
What is a White-Box Trap?
When someone tries to redact a PDF by drawing a white box over text instead of permanently deleting the text objects. The text remains selectable and extractable beneath the box.