Microsoft Visual Studio - Microsoft Visual Studio is an integrated development environment (IDE) from Microsoft.
dnSpy - .NET assembly editor, decompiler, and debugger
Eclipse - Eclipse is an open source community, whose projects are focused on building an open development platform comprised of extensible frameworks, tools and runtimes for building, deploying and managing software across the lifecycle.
Decompiler.com - Online Java and Android decompiler. Just drag and drop .JAR or .APK file and browse decompiled content online.
Rider - Rider is a cross-platform .NET IDE based on the IntelliJ platform and ReSharper.
ILSpy - ICSharpCode. Decompiler. Console..