Take it like a gift
ILSpy
NET Decompiler with support for PDB generation, ReadyToRun, Metadata (&more) - cross-platform!.
Cake Fuzzer
Cutting-edge project designed to automate the continuous discovery of vulnerabilities in webapps.
JSpector
Burp Suite extension to crawl JS files in passive mode and display the results on the issues.
JEB Decompiler
Decompile and debug binary code and obfuscated apps, break down and analyze document files.