Cecil is a library to inspect, modify and generate .NET programs and libraries.
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Mono.Cecil.Cil fix reading scope start Jul 3, 2017
Mono.Cecil.Metadata Fix reading/writing the size of table indexes in external pdbs Mar 28, 2017
Mono.Cecil.PE Use TargetArchitecture enum values when writing images May 4, 2017
Mono.Cecil The CustomDebugInformation table needs to be sorted Jul 19, 2017
Mono.Collections.Generic Style fixes Jul 13, 2016
Mono.Security.Cryptography Remove the PCL profile Mar 22, 2017
Mono Bring the ReflectionImporter to NET_CORE Mar 9, 2017
Test Add more locations to find peverify Jul 21, 2017
rocks Remove warning Jul 20, 2017
symbols Update Mdb library from upstream Jul 18, 2017
.editorconfig Include formatting style in .editorconfig Aug 9, 2017
.gitattributes Use auto EOL for text Nov 13, 2014
.gitignore Ignore .vs/ folder generated by Visual Studio 2015. Aug 29, 2016
.travis.yml Added travis CI Jun 1, 2015
LICENSE.txt This file doesn't use any markdown Jan 19, 2016
Mono.Cecil.Tests.props Rename settings files to props Jul 27, 2016
Mono.Cecil.csproj Enable restoring of Cecil as a P2P reference in .NET Core Mar 29, 2017
Mono.Cecil.nunit Added travis CI Jun 1, 2015
Mono.Cecil.nuspec Bump to beta 6 May 24, 2017
Mono.Cecil.props remove duplication in props May 5, 2017
Mono.Cecil.sln add readonly config May 4, 2017
Mono.Cecil.sln.DotSettings Add support for the portable pdb format Jul 13, 2016
NetStandard.props Do full signing only on windows for .net core Feb 17, 2017
ProjectInfo.cs Bump to beta 6 May 24, 2017
README.md Add travis badge Jun 2, 2015
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cecil.snk Switch to our own snk Feb 28, 2017



Mono.Cecil is a library to generate and inspect programs and libraries in the ECMA CIL form.

To put it simply, you can use Cecil to:

  • Analyze .NET binaries using a simple and powerful object model, without having to load assemblies to use Reflection.
  • Modify .NET binaries, add new metadata structures and alter the IL code.

Cecil has been around since 2004 and is widely used in the .NET community.

The best way to learn how to use Cecil is to dive into the Cecil.Samples repository. It's a growing collection of samples with the goal of showing how to get things done using Cecil, as IL manipulation can sometime get tricky.

Read about the Cecil development on the development log.

To discuss Cecil, the best place is the mono-cecil Google Group.

Cecil is a project under the benevolent umbrella of the .NET Foundation.

.NET build status Mono build status Join the chat at https://gitter.im/jbevain/cecil