Mime 3.6.0

dotnet add package Mime --version 3.6.0                
NuGet\Install-Package Mime -Version 3.6.0                
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Mime" Version="3.6.0" />                
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Mime --version 3.6.0                
#r "nuget: Mime, 3.6.0"                
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install Mime as a Cake Addin
#addin nuget:?package=Mime&version=3.6.0

// Install Mime as a Cake Tool
#tool nuget:?package=Mime&version=3.6.0                


.NET wrapper for libmagic

NuGet license


via NuGet:

PM> Install-Package Mime


Supported runtimes:

  • linux-musl-x64
  • linux-x64
  • osx-arm64(tested on macOS 13 Ventura)
  • osx-x64
  • win-x64

Basic usage

using HeyRed.Mime;

// (Optionally) You can set path to magic database file manually.
MimeGuesser.MagicFilePath = "/path/to/magic.mgc";

// Guess mime type of file(overloaded method takes byte array or stream as arg.)
MimeGuesser.GuessMimeType("path/to/file"); //=> image/jpeg

// Get extension of file(overloaded method takes byte array or stream as arg.)
MimeGuesser.GuessExtension("path/to/file"); //=> jpeg

// Get mime type and extension of file(overloaded method takes byte array or stream as arg.)
MimeGuesser.GuessFileType("path/to/file"); //=> FileType


Want more than just the mime type? Use the Magic class:

string calc = @"C:\Windows\System32\calc.exe";
using var magic = new Magic(MagicOpenFlags.MAGIC_NONE);
magic.Read(calc); //=> PE32+ executable (GUI) x86-64, for MS Windows

// Check encoding:
string textFile = @"F:\Temp\file.txt";
using var magic = new Magic(MagicOpenFlags.MAGIC_MIME_ENCODING);
magic.Read(textFile); //=> Output: utf-8

Also, we can combine flags with "|" operator. See all flags for more info.


  • The Magic class is not thread safe, but if you use different instances on different threads it seems to work fine.
  • The MimeGuesser is thread safe, since it generates a new instance of Magic class on each use.

Possible problems

Exception Solution
DllNotFoundException Make sure that your bin folder contains runtimes directory. If you publishing platform dependent app, then bin should be contains libmagic-1(.dll, .so or .dylib) and magic.mgc files.
BadImageFormatException Make sure when you target the AnyCPU platform the Prefer 32-bit option is unchecked. Or try to target x64/arm64 instead.
MagicException: Could not find any valid magic files! Make sure your magic.mgc file contains in one of /runtimes/ subdirs or along with libmagic-1.[dll|lib|dylib]. Or set path to custom database as described in basic usage



Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp1.0 was computed.  netcoreapp1.1 was computed.  netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard1.5 is compatible.  netstandard1.6 was computed.  netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 is compatible.  net48 is compatible.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen30 was computed.  tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (11)

Showing the top 5 NuGet packages that depend on Mime:

Package Downloads

NsfwSpy is an image and video classifier used to identify explicit/pornographic content using machine learning.


.Net Core port of SparkPost class libary for using REST API. https://github.com/darrencauthon/csharp-sparkpost


Package Description


Package Description


The main Downlink package including the controllers and infrastructure code

GitHub repositories (1)

Showing the top 1 popular GitHub repositories that depend on Mime:

Repository Stars
A .NET image and video classifier used to identify explicit/pornographic content written in C#.
Version Downloads Last updated
3.6.0 102,690 12/5/2023
3.5.2 192,543 2/27/2023
3.5.1 1,187 2/25/2023
3.4.1 103,853 12/12/2022
3.4.0 149,946 5/22/2022
3.3.0 128,517 12/2/2021
3.2.3 212,930 7/5/2021
3.2.2 221,387 9/11/2020
3.2.1 1,328 9/11/2020
3.1.0 187,712 1/9/2020
3.0.2 990,660 10/23/2018
3.0.1 64,852 5/13/2018
3.0.0 64,920 12/28/2017
2.3.5 76,115 8/19/2017
2.3.4 2,724 8/17/2017
2.3.2 119,911 6/1/2017
2.3.1 2,916 5/30/2017
2.3.0 2,977 5/29/2017
2.2.0 3,245 5/13/2017
2.1.1 5,358 4/10/2017
2.1.0 2,983 4/8/2017
2.0.0 5,113 12/19/2016
1.3.2 3,960 11/8/2016
1.3.1 3,894 11/5/2016
1.3.0 3,377 11/4/2016
1.2.1 2,970 10/29/2016
1.2.0 2,979 10/28/2016
1.1.0 3,031 10/6/2016
1.0.0 4,026 9/28/2016