The first Python validation package uses type, mime, extension, magic numbers, and size to validate files. ✅

FUFP (File Upload Fuzz Pack) is a curated collection of files designed to test, fuzz, and analyze file upload mechanisms in web applications.

A dual‑mode file integrity verification tool, developer side generates hash manifests and packages them into standalone validators, while the client side compares files against embedded hashes

Command-line File Verify

Compare file extensions with content signatures and flag misleading or mismatched names locally.

Various checksums for every Undertale version's data file.