A small library for detecting the type of a file based on header signature (also known as magic number).

A library for detecting file types.

python file signature identifier - Use this to identify files from their headers

🎩🐇 Toolkit for detecting and verifying file type using magic bytes in pure Golang

Use 'magic' to guess file types

File validator that checks by magic bytes and MIME types

Advanced File Fingerprinting

Identify a file via MIME type and file signature detection.

Currently a PNG file inspector, capable of detecting faults and corrupted blocks

Evade file content checks by prepending magic bytes to any file

A simple library for validating & checking file types. Written in V

Python tool to create polyglot files for magic byte bypass by merging with valid file formats (JPEG, PNG, PDF, DOCX, MP4, etc.)

What is a magic byte anyway? This tutorial will get you comfortable with the concept.

Mundane Elements is a system for checking the filetype of a given file using Magic Bytes.

File fingerprinting and signature detection based on known file header formats. A primary use-case is file upload validation in ASP.NET Core applications.

A simple tool to extract Magic Bytes from files

test files for magic byte recognition, content and meta-data extraction

Validate uploaded files by comparing file extension with actual file content (magic number). A TypeScript library for secure and accurate file type detection.

ileInspectorX is a library for content type detection (magic bytes + heuristics) and lightweight analysis (containers, PDFs, PE triage, text/script cues) across .NET 8, .NET Standard 2.0 and .NET Framework 4.7.2. A thin PowerShell module provides pipeline‑friendly cmdlets with reusable typed views.