NPE File Analyzer is a utility that allow users to view and edit 32bit and 64bit Portable Executable (PE) files, such as .EXE .DLL and .SYS files. NPE provides functions for inspection of unknown binaries, you can analyze sections, resources, import and export tables, relocations, TlsTable, and much more. It has a built-in process manager to analyze running processes and loaded modules.
It is possible to fix a dumped file, realign file, extract PE(s) from a file, add code cave and compare PE files to check for differences in the PE structure. NPE can also generate MD5 hash, SHA1 hash and CRC32 hash of a file. It has full support for PEiD plugins and it has also a built-in hex editor that allows you to edit a file.