Secure file type validation for .NET applications using magic number detection

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• Updated Oct 2, 2026
• C#

File validator that checks by magic bytes and MIME types

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• Updated Nov 12, 2026
• C#

Mimetics determines the file type, MIME type, and media type of a given file using magic numbers and content analysis to detect the most likely file type and then maps that to the appropriate MIME and media type.

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• Updated Aug 7, 2025
• JavaScript

File type validator for .NET Web projects

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• Updated Aug 27, 2025
• C#

Command-line tool to repair your file extensions

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• Updated Oct 7, 2025
• C

A magic number / magic byte Go package to read files and discover the format type.

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• Updated Nov 10, 2026
• Go

Short python script which change the bytes that identify extrensions on files

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• Updated Dec 2, 2021
• Python

Simple way to check a file's type by looking at bytes

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• Updated Jul 6, 2021
• Go